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Sample records for slac summer institute

  1. Summer Youth Forestry Institute

    ERIC Educational Resources Information Center

    Roesch, Gabrielle E.; Neuffer, Tamara; Zobrist, Kevin

    2013-01-01

    The Summer Youth Forestry Institute (SYFI) was developed to inspire youth through experiential learning opportunities and early work experience in the field of natural resources. Declining enrollments in forestry and other natural resource careers has made it necessary to actively engage youth and provide them with exposure to careers in these…

  2. Summer Youth Forestry Institute

    ERIC Educational Resources Information Center

    Roesch, Gabrielle E.; Neuffer, Tamara; Zobrist, Kevin

    2013-01-01

    The Summer Youth Forestry Institute (SYFI) was developed to inspire youth through experiential learning opportunities and early work experience in the field of natural resources. Declining enrollments in forestry and other natural resource careers has made it necessary to actively engage youth and provide them with exposure to careers in these…

  3. GLEANINGS FROM A SUMMER INSTITUTE.

    ERIC Educational Resources Information Center

    Twin City Inst. for Talented Youth, St. Paul, Minn.

    IN THIS REPORT TO THE ENGLISH TEACHING PROFESSION, THE TWIN CITY INSTITUTE STAFF DESCRIBES ITS CURRICULUM EXPERIMENTATION WITH ACADEMICALLY TALENTED HIGH SCHOOL STUDENTS DURING THE SUMMER OF 1967. THE FOLLOWING COURSES ARE BRIEFLY DISCUSSED IN THEIR REPORTS--(1) COMPOSITION AND RHETORIC, IN WHICH THEORY AND PRACTICE WERE BALANCED, AND EXPOSITION…

  4. The Oklahoma Summer Arts Institute.

    ERIC Educational Resources Information Center

    Suttle, Denise

    1982-01-01

    Programs were offered for fine arts students, 14-18 years old, in nine areas: orchestra, ballet, modern dance, acting, creative writing, mime, painting, printmaking, and photography. Guest artists also participated. The effect of the summer session upon the work of the students is easily recognizable. (RM)

  5. The Pioneer Valley Studies Summer Institute.

    ERIC Educational Resources Information Center

    Drabeck, Bernard A.

    1984-01-01

    Describes Greenfield Community College's Pioneer Valley Studies Summer Institute, which offers elementary and secondary school teachers in-depth exposure to the history, literature, science, art, and architecture of Pioneer Valley, Massachusetts. (DMM)

  6. Proceedings of Summer Institute on particle physics: Lepton-Hadron scattering

    SciTech Connect

    Hawthorne, J.

    1992-09-01

    The nineteenth annual SLAC Summer Institute on Particle Physics took place from August 5 to 16, 1991, attracting 236 participants from 10 different countries. The theme was lepton-hadron scattering, the subjects ranging from the pioneering SLAC-MIT experiments, through the new era of e-p collisions to be ushered in by HERA. Richard Taylor led off the Institute with a historical review of lepton-proton scattering experiments, from Rutherford to the 1960s, while Sid Drell laid out the theoretical framework, in terms of parton distributions and sum rules. Frank Sciulli picked up where Richard Taylor left off, at the discovery of scaling violation, and brought us up to the present. Joel Feltesse and Roberto Peccei described the physics opportunities at HERA, most notably the investigation of the low x behavior of structure functions. Traudl Hansl-Kozanecka reviewed the current experimental status of QCD, at e[sup +]e[sup [minus

  7. Summer institute for the teaching of psychology

    SciTech Connect

    Rycek, R.F.; Miller, R.L.

    1994-12-31

    This presentation will focus on the development of a summer institute to enhance high school and post-secondary teaching in psychology. The purpose of the institute is to provide an intensive teaching seminar in a specific content area of psychology presented by notable researchers and textbook authors in the field. The goal of the institute is to: (1) update participants in a particular content area, (2) introduce participants to new methods and technologies for teaching the content area at the high school and college level, and (3) provide attendees with a set of curriculum materials including classroom exercises and demonstrations which will allow students to conduct scientific experiments in psychology as well as to relate their findings to real world issues. The actual institute is staffed by at least three nationally known experts in a particular topic area of psychology. Over a five-day period, each expert gives at least three major presentations followed by appropriate breakout session which include demonstrations and discussions. The experts supply lecture outlines and supporting materials for their topics area which participants receive as a part of their learning packet. Participants also have the opportunity to share their teaching experiences and expertise.

  8. Summer institute of sustainability and energy

    SciTech Connect

    Crabtree, George W.

    2012-08-01

    The vision for the Summer Institute on Sustainability and Energy (SISE) is to integrate advancements in basic energy sciences with innovative energy technologies to train the next generation of interdisciplinary scientists and policy makers for both government and industry. Through BES related research, these future leaders will be equipped to make educated decisions about energy at the personal, civic, and global levels in energy related fields including science, technology, entrepreneurship, economics, policy, planning, and behavior. This vision explicitly supports the 2008 report by the Department of Energy’s Basic Energy Science Advisory Committee (2), which outlines scientific opportunities and challenges to achieve energy security, lower CO2 emissions, reduce reliance on foreign oil and create enduring economic growth through discovery, development and the marketing of new technologies for sustainable energy production, delivery, and use (3).

  9. Summer Spectacular: Children's Literature Workshops, Institutes, and Classes

    ERIC Educational Resources Information Center

    Huff, Karen; Pavonetti, Linda; Roser, Nancy

    2012-01-01

    No matter how long teachers have been out of school, or how many children's literature classes they have taught, when summer comes, most of them long to "go back to class." It is because of the intriguing, exciting, reinvigorating institutes and conferences their colleagues offer in summer. In this interview, two veteran planners of summer

  10. 45 CFR 2400.51 - Summer Institute accreditation.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 4 2013-10-01 2013-10-01 false Summer Institute accreditation. 2400.51 Section 2400.51 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.51 Summer Institute...

  11. 45 CFR 2400.51 - Summer Institute accreditation.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 4 2012-10-01 2012-10-01 false Summer Institute accreditation. 2400.51 Section 2400.51 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.51 Summer Institute...

  12. 45 CFR 2400.51 - Summer Institute accreditation.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 4 2010-10-01 2010-10-01 false Summer Institute accreditation. 2400.51 Section 2400.51 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.51 Summer Institute...

  13. 45 CFR 2400.51 - Summer Institute accreditation.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 4 2011-10-01 2011-10-01 false Summer Institute accreditation. 2400.51 Section 2400.51 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.51 Summer Institute...

  14. 45 CFR 2400.51 - Summer Institute accreditation.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 45 Public Welfare 4 2014-10-01 2014-10-01 false Summer Institute accreditation. 2400.51 Section 2400.51 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.51 Summer Institute...

  15. 45 CFR 2400.47 - Summer Institute's relationship to fellowship.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 4 2010-10-01 2010-10-01 false Summer Institute's relationship to fellowship... MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.47 Summer Institute's relationship to fellowship. Each year, the Foundation normally offers during July a four-week...

  16. 45 CFR 2400.47 - Summer Institute's relationship to fellowship.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 4 2011-10-01 2011-10-01 false Summer Institute's relationship to fellowship... MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.47 Summer Institute's relationship to fellowship. Each year, the Foundation normally offers during July a four-week...

  17. 45 CFR 2400.47 - Summer Institute's relationship to fellowship.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 45 Public Welfare 4 2014-10-01 2014-10-01 false Summer Institute's relationship to fellowship... MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.47 Summer Institute's relationship to fellowship. Each year, the Foundation normally offers during July a four-week...

  18. 45 CFR 2400.47 - Summer Institute's relationship to fellowship.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 4 2013-10-01 2013-10-01 false Summer Institute's relationship to fellowship... MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.47 Summer Institute's relationship to fellowship. Each year, the Foundation normally offers during July a four-week...

  19. 45 CFR 2400.47 - Summer Institute's relationship to fellowship.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 4 2012-10-01 2012-10-01 false Summer Institute's relationship to fellowship... MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.47 Summer Institute's relationship to fellowship. Each year, the Foundation normally offers during July a four-week...

  20. An Innovative Summer Institute for Teachers: Examining the Underground Railroad

    ERIC Educational Resources Information Center

    Dallmer, Denise

    2002-01-01

    In this article, the author describes the summer institute which she planned through her involvement with the Institute for Freedom Studies at Northern Kentucky University, whose purpose is to promote interdisciplinary research, teaching and community outreach grounded in the study of the Underground Railroad. The purpose of the institute was to…

  1. An Innovative Summer Institute for Teachers: Examining the Underground Railroad

    ERIC Educational Resources Information Center

    Dallmer, Denise

    2002-01-01

    In this article, the author describes the summer institute which she planned through her involvement with the Institute for Freedom Studies at Northern Kentucky University, whose purpose is to promote interdisciplinary research, teaching and community outreach grounded in the study of the Underground Railroad. The purpose of the institute was to…

  2. REPORT ON THE SUMMER 1966 INDUSTRIAL ARTS INSTITUTES.

    ERIC Educational Resources Information Center

    HACKETT, D.F.; AND OTHERS

    DURING THE SUMMER OF 1966, THE U.S. OFFICE OF EDUCATION ENGAGED THE CONSORTIUM OF PROFESSIONAL ASSOCIATIONS TO CONDUCT A STUDY OF THE NATIONAL DEFENSE EDUCATION ACT (NDEA) INDUSTRIAL ARTS INSTITUTES THEN IN PROGRESS. TO COLLECT INFORMATION FOR PLANNING FUTURE INSTITUTES, A COMMITTEE MEMBER VISITED EACH INSTITUTE FOR 2 DAYS, AND UTILIZED A LIST OF…

  3. Summer Spectacular: Children's Literature Workshops, Institutes, and Classes

    ERIC Educational Resources Information Center

    Huff, Karen; Pavonetti, Linda; Roser, Nancy

    2012-01-01

    No matter how long teachers have been out of school, or how many children's literature classes they have taught, when summer comes, most of them long to "go back to class." It is because of the intriguing, exciting, reinvigorating institutes and conferences their colleagues offer in summer. In this interview, two veteran planners of summer…

  4. 77 FR 38840 - Proposed Collection; Comment Request; National Institute of Nursing Research (NINR) Summer...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-29

    ... Nursing Research (NINR) Summer Genetics Institute Alumni Survey SUMMARY: In compliance with the... Nursing Research (NINR) Summer Genetics Institute Alumni Survey. Type of Information Collection Request: NEW. Need and Use of Information Collection: The NINR Summer Genetics Institute Alumni Survey...

  5. Summer Institute: Technology II. 1996-1997 Special 353 Project.

    ERIC Educational Resources Information Center

    Burrows, Debra G.

    A project developed and conducted a summer institute to offer training, hands-on activities, and workshops addressing educational technology for adult basic education (ABE), General Educational Development (GED) and literacy education teachers, administrators, and staff. During the first phase of the project, the institute was designed as a 3-day…

  6. Aspen Global Change Institute Summer Science Sessions

    SciTech Connect

    Katzenberger, John; Kaye, Jack A

    2006-10-01

    The Aspen Global Change Institute (AGCI) successfully organized and convened six interdisciplinary meetings over the course of award NNG04GA21G. The topics of the meetings were consistent with a range of issues, goals and objectives as described within the NASA Earth Science Enterprise Strategic Plan and more broadly by the US Global Change Research Program/Our Changing Planet, the more recent Climate Change Program Strategic Plan and the NSF Pathways report. The meetings were chaired by two or more leaders from within the disciplinary focus of each session. 222 scholars for a total of 1097 participants-days were convened under the auspices of this award. The overall goal of each AGCI session is to further the understanding of Earth system science and global environmental change through interdisciplinary dialog. The format and structure of the meetings allows for presentation by each participant, in-depth discussion by the whole group, and smaller working group and synthesis activities. The size of the group is important in terms of the group dynamics and interaction, and the ability for each participant's work to be adequately presented and discussed within the duration of the meeting, while still allowing time for synthesis

  7. Opening Doors: The Summer Institute in Computer Science.

    ERIC Educational Resources Information Center

    Sorensen, Barbara

    1999-01-01

    The Summer Institute in Computer Science (SICS) at the University of California in Irvine invites Native American community college students to spend 6 weeks studying computer science. The students live on campus and intern with a large corporation, sharpening computer skills and establishing mentoring relationships with business professionals.…

  8. 45 CFR 2400.50 - Allowances and Summer Institute costs.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 4 2013-10-01 2013-10-01 false Allowances and Summer Institute costs. 2400.50 Section 2400.50 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.50 Allowances and...

  9. 45 CFR 2400.49 - Contents of the Summer Institute.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 4 2012-10-01 2012-10-01 false Contents of the Summer Institute. 2400.49 Section 2400.49 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.49 Contents of the...

  10. 45 CFR 2400.49 - Contents of the Summer Institute.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 4 2010-10-01 2010-10-01 false Contents of the Summer Institute. 2400.49 Section 2400.49 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.49 Contents of the...

  11. 45 CFR 2400.50 - Allowances and Summer Institute costs.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 4 2011-10-01 2011-10-01 false Allowances and Summer Institute costs. 2400.50 Section 2400.50 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.50 Allowances and...

  12. 45 CFR 2400.50 - Allowances and Summer Institute costs.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 4 2012-10-01 2012-10-01 false Allowances and Summer Institute costs. 2400.50 Section 2400.50 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.50 Allowances and...

  13. 45 CFR 2400.49 - Contents of the Summer Institute.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 4 2011-10-01 2011-10-01 false Contents of the Summer Institute. 2400.49 Section 2400.49 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.49 Contents of the...

  14. 45 CFR 2400.49 - Contents of the Summer Institute.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 4 2013-10-01 2013-10-01 false Contents of the Summer Institute. 2400.49 Section 2400.49 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.49 Contents of the...

  15. 45 CFR 2400.50 - Allowances and Summer Institute costs.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 4 2010-10-01 2010-10-01 false Allowances and Summer Institute costs. 2400.50 Section 2400.50 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.50 Allowances and...

  16. Summer Research Institute Interfacial and Condensed Phase Chemical Physics

    SciTech Connect

    Barlow, Stephan E.

    2004-10-01

    Pacific Northwest National Laboratory (PNNL) hosted its first annual Summer Research Institute in Interfacial and Condensed Phase Chemical Physics from May through September 2004. During this period, fourteen PNNL scientists hosted sixteen young scientists from eleven different universities. Of the sixteen participants, fourteen were graduate students; one was transitioning to graduate school; and one was a university faculty member.

  17. Bioengineering and Bioinformatics Summer Institutes: Meeting Modern Challenges in Undergraduate Summer Research

    PubMed Central

    Dong, Cheng; Snyder, Alan J.; Jones, A. Daniel; Sheets, Erin D.

    2008-01-01

    Summer undergraduate research programs in science and engineering facilitate research progress for faculty and provide a close-ended research experience for students, which can prepare them for careers in industry, medicine, and academia. However, ensuring these outcomes is a challenge when the students arrive ill-prepared for substantive research or if projects are ill-defined or impractical for a typical 10-wk summer. We describe how the new Bioengineering and Bioinformatics Summer Institutes (BBSI), developed in response to a call for proposals by the National Institutes of Health (NIH) and the National Science Foundation (NSF), provide an impetus for the enhancement of traditional undergraduate research experiences with intense didactic training in particular skills and technologies. Such didactic components provide highly focused and qualified students for summer research with the goal of ensuring increased student satisfaction with research and mentor satisfaction with student productivity. As an example, we focus on our experiences with the Penn State Biomaterials and Bionanotechnology Summer Institute (PSU-BBSI), which trains undergraduates in core technologies in surface characterization, computational modeling, cell biology, and fabrication to prepare them for student-centered research projects in the role of materials in guiding cell biology. PMID:18316807

  18. FOREWORD: Corfu Summer Institute on Elementary Particle Physics (CORFU2005)

    NASA Astrophysics Data System (ADS)

    Anagnostopoulos, Konstantinos; Antoniadis, Ignatios; Fanourakis, George; Kehagias, Alexandros; Savoy-Navarro, Aurore; Wess, Julius; Zoupanos, George

    2006-12-01

    These are the Proceedings of the Corfu Summer Institute on Elementary Particle Physics (CORFU2005) (http://corfu2005.physics.uoi.gr), which took place in Corfu, Greece from 4 - 26 September 2005. The Corfu Summer Institute has a very long, interesting and successful history, some elements of which can be found in http://www.corfu-summer-institute.gr. In short, the Corfu Meeting started as a Summer School on Elementary Particle Physics (EPP) mostly for Greek graduate students in 1982 and has developed into a leading international Summer Institute in the field of EPP, both experimental and theoretical, providing in addition a very rich outreach programme to teachers and school students. The CORFU2005 Summer Institute on EPP, although based on the general format that has been developed and established in the Corfu Meetings during previous years, is characterized by the fact that it was a full realization of a new idea, which started experimentally in the previous two Corfu Meetings. The successful new ingredient was that three European Marie Curie Research Training Networks decided to hold their Workshops in Corfu during September 2005 and they managed to coordinate the educational part of their meetings to a huge Summer School called `The 8th Hellenic School on Elementary Particle Physics' (4 - 11 September). The European Networks which joined forces to materialize this project and the corresponding dates of their own Workshops are:

  19. The Third Generation as a Probe for New Physics: Experimental and Technological Approach (4 - 11 September)
  20. The Quest for Unification Theory Confronts Experiment (11 - 18 September)
  21. Constituents Fundamental Forces and Symmetries of the Universe (20 - 26 September)
  22. To these Workshops has been added a Satellite one called `Noncommutative Geometry in Field and String Theory', and some extra speakers have been invited to complement the full programme of CORFU2005, some of whom have integrated into the Workshop's programme. The result was indeed very successful! An impressive aspect is that the CORFU2005 had the most massive participation so far attracting around 350 scientists. Among them around 200 young scientists (100 graduate students and 100 post doctoral scientists) and around 150 senior scientists. Therefore, among others, CORFU2005 hosted one of the largest Summer Schools in our field. Internationally leading scientists have been gathered in the CORFU2005 in the various Workshops and the School and have created a stimulating scientific atmosphere for themselves and for the young scientists. The contributions of all speakers can be found in http://corfu2005.physics.uoi.gr. Most of them have contributed to the present proceedings, while the contributions of the last week can be found in Fortsch. Phys. 54, Issue 5 - 6 (May 2006). In parallel to the main scientific programme a very interesting, rich and successful outreach programme was held in collaboration with the local Department of the Greek Physical Society and the Laboratory of Physical Science in Corfu (EKFE). The success of the CORFU2005 was the best advertisement concerning the long standing efforts to establish the `European Institute of Science and their Applications', which eventually was founded last spring in Corfu. The new Institute hopes to be the permanent extension of the Corfu Summer Institutes on EPP and has an additional aim to upgrade them in the sense that the attracted first class scientists would produce locally a significant research output. We would like to thank everybody very much who contributed to the success of CORFU2005. We would like specifically to thank all speakers and organizers, the conference secretary and the school officer (please consult http://corfu2005.physics.uoi.gr) and the group of graduate students who helped in various ways and contributed in a very significant manner in the success of CORFU2005. In addition we would like to thank our sponsors, whose contribution made possible the CORFU2005:
  23. European Resea

  24. Summer Institute in Engineering and Computer Applications: Learning Through Experience

    NASA Technical Reports Server (NTRS)

    Langdon, Joan S.

    1995-01-01

    The document describing the Summer Institute project is made up of the following information: Administrative procedures; Seminars/Special Courses/Tours/College fair; Facilities/ Transportation; Staff and Administration; Collaboration; Participant/Project monitoring and evaluation; Fiscal and developmental activities; Job readiness/Job internship development and placement; and Student Follow-up/Tracking. Appendices include presentations, self-evaluations; abstracts and papers developed by the students during their participation in the program.

  25. Summer Institute for Mathematics and Science teachers (SIMS). Final report

    SciTech Connect

    1994-07-01

    The Summer Institute for Mathematics and Science Teachers (SIMS) was to provide training for science and mathematics educators in strategies and techniques to use for educating and motivating historically under-represented populations. The Institute featured 40 hours of training over five days, July 13-17, 1993 plus half-day follow-up training November 13, 1993 and April 30, 1994. The objective of the training was to include sensitization to cultural and gender issues, and to instruct participants in the utilization of a variety of techniques and activities for encouraging historically under-represented groups to take more advanced science and mathematics courses.

  1. 45 CFR 2400.48 - Fellows' participation in the Summer Institute.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 4 2010-10-01 2010-10-01 false Fellows' participation in the Summer Institute...' participation in the Summer Institute. Each fellow is required as part of his or her fellowship to attend the Institute (if it is offered), normally during the summer following the Fellow's commencement of...

  2. 45 CFR 2400.48 - Fellows' participation in the Summer Institute.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 45 Public Welfare 4 2011-10-01 2011-10-01 false Fellows' participation in the Summer Institute...' participation in the Summer Institute. Each fellow is required as part of his or her fellowship to attend the Institute (if it is offered), normally during the summer following the Fellow's commencement of...

  3. 45 CFR 2400.48 - Fellows' participation in the Summer Institute.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 4 2012-10-01 2012-10-01 false Fellows' participation in the Summer Institute...' participation in the Summer Institute. Each fellow is required as part of his or her fellowship to attend the Institute (if it is offered), normally during the summer following the Fellow's commencement of...

  4. 45 CFR 2400.48 - Fellows' participation in the Summer Institute.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 45 Public Welfare 4 2013-10-01 2013-10-01 false Fellows' participation in the Summer Institute...' participation in the Summer Institute. Each fellow is required as part of his or her fellowship to attend the Institute (if it is offered), normally during the summer following the Fellow's commencement of...

  5. Photocathode research at SLAC

    SciTech Connect

    Mulhollan, G.; Clendenin, J.; Garwin, E.; Kirby, R.; Maruyama, T.; Tang, H.; Prepost, R.

    1998-01-01

    GaAs based photocathode research at SLAC will be described. Recent efforts have focused on both immediate applications and fundamental photocathode properties. This includes revisiting some old measurements with state-of-the-art instrumentation. {copyright} {ital 1998 American Institute of Physics.}

  6. Howard University Energy Expert Systems Institute Summer Program (EESI)

    NASA Technical Reports Server (NTRS)

    Momoh, James A.; Chuku, Arunsi; Abban, Joseph

    1996-01-01

    Howard University, under the auspices of the Center for Energy Systems and Controls runs the Energy Expert Systems Institute (EESI) summer outreach program for high school/pre-college minority students. The main objectives are to introduce precollege minority students to research in the power industry using modern state-of-the-art technology such as Expert Systems, Fuzzy Logic and Artificial Neural Networks; to involve minority students in space power management, systems and failure diagnosis; to generate interest in career options in electrical engineering; and to experience problem-solving in a teamwork environment consisting of faculty, senior research associates and graduate students. For five weeks the students are exposed not only to the exciting experience of college life, but also to the inspiring field of engineering, especially electrical engineering. The program consists of lectures in the fundamentals of engineering, mathematics, communication skills and computer skills. The projects are divided into mini and major. Topics for the 1995 mini projects were Expert Systems for the Electric Bus and Breast Cancer Detection. Topics on the major projects include Hybrid Electric Vehicle, Solar Dynamics and Distribution Automation. On the final day, designated as 'EESI Day' the students did oral presentations of their projects and prizes were awarded to the best group. The program began in the summer of 1993. The reaction from the students has been very positive. The program also arranges field trips to special places of interest such as the NASA Goddard Space Center.

  7. Summer Internship Program at the Monterey Bay Aquarium Research Institute

    NASA Astrophysics Data System (ADS)

    Matsumoto, G. I.

    2009-12-01

    The Monterey Bay Aquarium Research Institute formally started the Internship Program in 1997. The program is open to undergraduate and graduate students and educators. The purpose of the Program is to provide an opportunity for talented students and teachers to come to MBARI for a certain period of time and to work on a research project under MBARI staff supervision. The interns are selected following a rigorous application procedure, merit review and, in some cases, an interview process. They are from around the world and represent a variety of different backgrounds, experience, and education. They all share a common desire to learn more about the marine environment and to work with MBARI staff. The mission of the Monterey Bay Aquarium Research Institute is to serve as a world center for advanced research and education in ocean science and technology. MBARI strives to achieve this mission through the development of better instruments, systems, and methods for scientific research in the deep ocean. MBARI emphasizes peer relationships between engineers and scientists as a basic principle of its operation. Teams at MBARI use cutting-edge technology to develop equipment, software, and research methods to meet the specific needs of deep-sea research. The focus of the MBARI internship is on the intern’s professional development—learning research techniques and improving communication and collaboration skills. Each intern has an MBARI mentor who will supervise a specific project. Interns will also serve as peer-mentors to other interns. This presentation will provide a brief overview of the history of the program as well as lessons learned. 2009 MBARI SUMMER INTERNS WITH PRESIDENT AND CEO MARCIA MCNUTT

  8. 76 FR 6172 - Bureau of Educational and Cultural Affairs (ECA) Request for Grant Proposals: Summer Institutes...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-03

    ...The Europe/Eurasia Branch of the Office of Academic Exchange Programs, Bureau of Educational and Cultural Affairs, invites proposal submissions for the design and implementation of two Summer Institutes for European Student Leaders. The Institutes will take place over the course of five weeks, beginning mid-July 2011. The Institutes should take place at U.S. academic institutions and provide......

  9. 75 FR 14565 - NIST Summer Institute for Middle School Science Teachers; Availability of Funds

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-26

    ...The National Institute of Standards and Technology (NIST) announces the availability of Federal assistance for educational institutions to provide limited support for middle school science teachers to attend the NIST Summer Institute for Middle School Science Teachers. Teachers from qualified applicants should be involved in teaching areas of science, technology, engineering and mathematics......

  10. Summer Institutes for Secondary Teachers of Science, Mathematics and Social Science. 1972 Directory.

    ERIC Educational Resources Information Center

    National Science Foundation, Washington, DC.

    This directory lists the institutions awarded support by the National Science Foundation for 276 summer institutes in 1972 for secondary school teachers of science and/or mathematics. The introduction gives information on "unitary" and "sequential" institutes, eligibility and selection of participants, applications, and information concerning…

  11. The Summer Institute for Writing Center Directors and Professionals: A Narrative Bibliography

    ERIC Educational Resources Information Center

    Babcock, Rebecca; Ferrel, Thomas; Ozias, Moira

    2011-01-01

    Since 2003, the International Writing Centers Association has held a Summer Institute for Writing Center Directors and Professionals. Encouragement of scholarship, writing, and publication are important aspects of the institute. We have compiled a bibliography of scholarly works emerging from the first seven institutes. These works include web…

  12. Bioengineering and Bioinformatics Summer Institutes: Meeting Modern Challenges in Undergraduate Summer Research

    ERIC Educational Resources Information Center

    Butler, Peter J.; Dong, Cheng; Snyder, Alan J.; Jones, A. Daniel; Sheets, Erin D.

    2008-01-01

    Summer undergraduate research programs in science and engineering facilitate research progress for faculty and provide a close-ended research experience for students, which can prepare them for careers in industry, medicine, and academia. However, ensuring these outcomes is a challenge when the students arrive ill-prepared for substantive research…

  13. Bioengineering and Bioinformatics Summer Institutes: Meeting Modern Challenges in Undergraduate Summer Research

    ERIC Educational Resources Information Center

    Butler, Peter J.; Dong, Cheng; Snyder, Alan J.; Jones, A. Daniel; Sheets, Erin D.

    2008-01-01

    Summer undergraduate research programs in science and engineering facilitate research progress for faculty and provide a close-ended research experience for students, which can prepare them for careers in industry, medicine, and academia. However, ensuring these outcomes is a challenge when the students arrive ill-prepared for substantive research…

  14. Migrant Education: New Directions For Continuing Challenges. 1982 Summer Institute Evaluation Summary.

    ERIC Educational Resources Information Center

    Colorado Migrant Education Resource Center (CoMerc), Longmont.

    The report presents the major feedback and cost factors of the 1982 Summer Institute held by the Colorado Migrant Education Resource Center (CoMERC) for summer migrant school instructional staff. The first section describes the pre-registration process and depicts the make-up of the 198 participants. The next section presents comments on…

  15. An Evaluation of a Summer Reading Institute, 1968.

    ERIC Educational Resources Information Center

    Rosenfeld, Michael

    This document describes part of the evaluation of a six-week reading institute for 69 K-3 teachers from the Raymond School, Model School Division (MSD), Washington, D.C. and thereby provides an evaluation model for schools to use in their own inservice training programs. Two evaluation instruments developed by an MSD innovation team in cooperation…

  16. THE MARK TWAIN SUMMER INSTITUTE. 1964 ANNUAL REPORT.

    ERIC Educational Resources Information Center

    LEMEN, ROBERT F.; AND OTHERS

    INTELLECTUALLY ABLE SECONDARY SCHOOL STUDENTS APPLIED FOR THE INSTITUTE. COURSES OFFERED WERE NOT FOR CREDIT BUT WERE SUPPLEMENTARY TO THE REGULAR CURRICULUM. A SMALL TUITION WAS PAID FOR THE ONE COURSE CHOSEN. THE COURSES OFFERED INCLUDED ENGLISH COMPOSITION AND LITERATURE, BEGINNING CHINESE, ADVANCED CHINESE, GERMAN, JAPANESE, BEGINNING RUSSIAN,…

  17. SLAC site design aesthetics

    SciTech Connect

    Hall, F.F.

    1985-10-01

    Stanford Linear Accelerator Center (SLAC) is a single mission laboratory dedicated to basic research in high energy particle physics. SLAC site also houses Stanford Synchrotron Radiation Laboratory (SSRL) which is a multi-mission laboratory for research using beams of ultraviolet light and low energy photons as emitted tangentially from SLAC colliding beam facilities. This paper discusses various aspects of SLAC site design aesthetics under the following headings: (1) imposed footprint of SLAC, (2) description of selected site, (3) use of earth cover for radiation and sight screens, (4) use of landscaping for cosmetic purposes, (5) use of exterior paint colors to soften SLAC impact on neighbors, (6) relocation of SLAC main entrance, (7) relocation of SLAC collider arcs and experimental hall, (8) parking lots and storage yards, and (9) land use zoning at SLAC.

  18. Evaluation of the General Electric Foundation Summer Institutes on Career Education and Guidance.

    ERIC Educational Resources Information Center

    Gray, Kenney E.; Pierson, Terrence K.

    An evaluation was conducted to determine the effects of the General Electric Foundation Summer Institutes on Career Education and Guidance over a one to two year period in participating school districts and communities. The study evaluated the team-oriented institutes held in 1976 and 1977 at the University of South Carolina and Indiana…

  19. Grouping Lessons We Learned from Co-Teaching in a Summer Writing Institute

    ERIC Educational Resources Information Center

    Chandler-Olcott, Kelly; Burnash, Jodi; Donahue, Danielle; DeChick, Maureen; Gendron, Michele; Smith, James; Taylor, Mary; Zeleznik, John

    2012-01-01

    This article describes lessons learned about grouping by teachers and teacher educators who worked collaboratively to design and deliver a summer writing institute for a heterogeneous population of students about to begin ninth grade at an urban high school. Institute staff used co-teaching (Cook & Friend, 1995) extensively to provide support for…

  20. Teacher Attendance at a Summer Institute and High School Student Achievement

    ERIC Educational Resources Information Center

    Thelen, L. J.; Litsky, Warren

    1972-01-01

    Students of teachers who had attended a summer institute on water pollution control performed better on an achievement test at the end of the following school year than classes of teachers with equivalent qualifications who were not selected for the institute. Other control groups of students were also used. (AL)

  1. NCAR Johns Hopkins/CDC Climate and Health Summer Institute

    NASA Technical Reports Server (NTRS)

    Mearns, Linda O.

    2005-01-01

    The interactions between climate and health are rife with complexity and present many conceptual and methodological challenges. Possible effects of climate change on health are considered some of the most sensitive impacts of climate change and are a high priority for policy-makers and the public. As a first step toward improving tlit: quality of research, we developed a Climate and Health Workshop (Institute), geared toward teaching students various aspects of how to conduct integrated climate and health research. At the workshop scientists presented selected case studies of climate and health (e.g., heat mortality, vector-borne diseases), thus demonstrating a subset of key analytical tools and databases most useful to researchers in this field. Key research gaps in this research area were discussed. In this six-day Institute (21-28 July 2004, Boulder, Colorado), health scientists and students benefited from lectures and hands-on tools taught by top NCAR scientists. The attendees learned about health databases and epidemiologic methods from leading health scientists from CDC, Johns Hopkins, and other institutions from around the globe.

  2. Summer Synthesis Institutes: A Novel Approach for Transformative Research and Student Career Development

    NASA Astrophysics Data System (ADS)

    Wilson, J.; Hermans, C. M.

    2010-12-01

    It is believed that breakthroughs tend to occur when small groups of highly motivated scientists are driven by challenges encountered in real problem-solving situations and given the freedom to experiment with new ideas. Summer synthesis institutes provide a mechanism to facilitiate these breakthroughs and by which graduate students may engage in interdisciplinary research in a way that is not often available in their normal course of study. In this presentation we examine two complementary models of summer synthesis institutes in hydrology, how these intensive programs facilitate scientific outcomes and the impact of synthesis and the summer institute model on student perceptions of academic roles, collaboration opportunities and team science. Five summer synthesis institutes were held over three years, sharing similar duration and structure but different degrees of participant interdisciplinarity and focus questions. Through informal assessments, this presentation will demonstrate how these programs offered a unique opportunity for the development of student-student and student-mentor relationships and facilitated deeper understanding of a student’s own research as well as new techniques, perspective and disciplines. Additionally, though the summer synthesis institute model offers a unique ability to leverage limited funding (on the order of a single graduate student) to advance earth sciences, the model also presents specific challenges for research follow-through and may require specific content and interpersonal dynamics for optimum success.

  3. Impact of Hazardous Materials on Man and the Environment: A Summer Institute with Academic Year Follow-up.

    ERIC Educational Resources Information Center

    Kjeldsen, Chris K.

    This report focuses on three 11-day summer institutes on "The Impact of Toxic and Hazardous Materials on Humans and the Environment" conducted for 90 secondary school science teachers over the course of three summers at Sonoma State University, California. These summer institutes were all followed up with in-service days during the following…

  4. Summer institute in parallel programming (Organized by Ewing Lusk and William Gropp)

    SciTech Connect

    Pieper, G.W.

    1992-01-01

    On September 3--13, 1991, Argonne National Laboratory hosted a Summer Institute in Parallel Programming. The institute was organized by the Mathematics and Computer Science Division and was supported in part by the National Science Foundation and by the US Department of Energy. The objective of the institute was to familiarize graduate students and postdoctoral researchers with new methods and tools for parallel programming and to provide hands-on experience with a diverse array of advanced-computer architectures. This report summarizes the activities that took place during the ten-day institute.

  5. Work Papers of the Summer Institute of Linguistics 1989, University of North Dakota Session, Volume 33.

    ERIC Educational Resources Information Center

    Dooley, Robert A., Ed.; Bickford, J. Albert, Ed.

    The volume represents in microcosm the sort of faculty-trainee-student interaction that is a priority at the Summer Institute of Linguistics (SIL) at the University of North Dakota. Seven studies by faculty and students of SIL include the following: "Lexical Variation in Mexican Sign Language" (J. Albert Bickford); "Reflexives in Veracruz Huastec"…

  6. Work Papers of the Summer Institute of Linguistics, University of North Dakota Session. Volume 40.

    ERIC Educational Resources Information Center

    Marlett, Stephen A., Ed.; Speck, Charles H., Ed.

    Research by the staff and advanced students of the North Dakota Summer Institute of Linguistics is presented. In "Verb Agreement and Case Marking in Burushaski" (Stephen R. Willson), an overview of Burushaski morphology and syntax is presented, with special attention to verb agreement and case marking. "A Backwards Binding Construction in Zapotec"…

  7. Work Papers of the Summer Institute of Linguistics: University of North Dakota Session, Volume 39.

    ERIC Educational Resources Information Center

    Bickford, J. Albert, Ed.

    This volume contains an index to volumes 18-38 (1974-1994) of the "Work Papers of the Summer Institute of Linguistics" (Stephen A. Marlett and J. Albert Bickford) as well as the following 1995 papers: "Laryngeal Licensing and Syllable Well-formedness in Quiengolani Zapotec" (Cherly A. Black); "A Grammar Sketch of the Kaki Ae Language" (John M.…

  8. Work Papers. Summer Institute of Linguistics, University of North Dakota Sessions, Vol. 22.

    ERIC Educational Resources Information Center

    Daly, John, Ed.

    This collection of papers from the Summer Institute of Linguistics contains the following articles: (1) "Texmelucan Suprasegmental Phonology," by C. H. Speck; (2) "Some Discourse Features in Siberian Yupik Eskimo," by D. C. and M. R. Shinen; (3) "The Particle t'ah in Slavey Discourse," by C. Harrison and V. Monus; (4) "The Point-Line Dimension in…

  9. Summer Institute in Agricultural Mechanics Education, Southern Region, Proceedings (Blacksburg, Virginia, August 3-7, 1970).

    ERIC Educational Resources Information Center

    Virginia Polytechnic Inst. and State Univ., Blacksburg.

    This summer institute emphasizes the establishment of minimum measurable standards of attainment in agricultural engineering phases of teacher education in agriculture. Speeches presented are: (1) "Where We Are in Agricultural Mechanics Education," by Alfred H. Krebs, (2) "Research Offerings for More Effective Teaching in Agricultural Mechanics,"…

  10. Student Drug Use. An Informal Survey of Institutional Policies and Practices, Summer, 1967.

    ERIC Educational Resources Information Center

    Bloland, Paul A.; Nowak, Daniel B.

    An informal survey of colleges and universities was conducted in the Summer of 1967 to ascertain what positions they had taken with regard to the use of drugs by students. All of the institutions involved reported that they were aware of an urgent need to develop approaches for dealing with the problem, and were attempting to acquaint students…

  11. MARK TWAIN SUMMER INSTITUTE, 1965 SESSION. GENERAL CATALOGUE OF INFORMATION AND COURSES OFFERED.

    ERIC Educational Resources Information Center

    LEMEN, ROBERT F.

    THE MARK TWAIN SUMMER INSTITUTE OFFERED CHALLENGING EDUCATIONAL OPPORTUNITIES, PROVIDED EXCELLENT TEACHERS AN OPPORTUNITY TO DEVELOP NEW TECHNIQUES, AND OFFERED AN "INTERN-TEACHER" PROGRAM. THE STUDENTS QUALIFIED TO ATTEND WERE ABLE SECONDARY STUDENTS FROM GRADES 9 THROUGH 12. EACH STUDENT WOULD TAKE ONE NON-CREDIT HIGH SCHOOL COURSE. THE…

  12. Bibliography of the Summer Institute of Linguistics, Philippines 1953-1988.

    ERIC Educational Resources Information Center

    Gieser, C. Richard, Ed.

    This document, the third edition of the bibliography of the Philippines Summer Institute of Linguistics, contains about 2,300 citations on 83 languages. The technical works cited include (1) textbooks for language study; (2) papers resulting from general linguistic research; (3) descriptions of the philologies, grammars, and lexicons of specific…

  13. Evaluation of the Nursing Program at Caldwell Community College and Technical Institute--Summer, 1983.

    ERIC Educational Resources Information Center

    Pipes, V. David

    In summer 1983, an evaluation of the nursing program at Caldwell Community College and Technical Institute was conducted to determine whether program objectives were being met, to measure program success, and to identify areas needing improvement. Surveys were sent to 19 early (pre-1978) and 47 recent Licensed Practical Nurse (LPN) graduates; 17…

  14. 2005 Annual Report Summer Research Institute Interfacial and Condensed Phase Chemical Physics

    SciTech Connect

    Barlow, Stephan E.

    2005-11-15

    The Pacific Northwest National Laboratory (PNNL) hosted its second annual Summer Research Institute in Interfacial and Condensed Phase Chemical Physics from May through September 2005. During this period, sixteen PNNL scientists hosted fourteen young scientists from eleven different universities. Of the fourteen participants, twelve were graduate students; one was a postdoctoral fellow; and one was a university faculty member.

  15. Financial Management and Job Social Skills Training Components in a Summer Business Institute

    ERIC Educational Resources Information Center

    Donohue, Brad; Conway, Debbie; Beisecker, Monica; Murphy, Heather; Farley, Alisha; Waite, Melissa; Gugino, Kristin; Knatz, Danielle; Lopez-Frank, Carolina; Burns, Jack; Madison, Suzanne; Shorty, Carrie

    2005-01-01

    Ninety-two adolescents, predominantly ethnic minority high school students, participated in a structured Summer Business Institute (SBI). Participating youth were randomly assigned to receive either job social skills or financial management skills training components. Students who additionally received the job social skills training component were…

  16. Bolivian Indian Grammars: I and II. Summer Institute of Linguistics Publications in Linguistics and Related Fields.

    ERIC Educational Resources Information Center

    Matteson, Esther, Ed.

    Ten grammars of indigenous Bolivian languages are presented in these two volumes of Bolivian Indian Grammars. The data were gathered and analyzed by members of the Bolivian Branch of the Summer Institute of Linguistics, which has carried on linguistic investigations in Bolivia since 1955. The grammars are presented in the tagmemic model of Pike…

  17. Personal Writing and Basics: Reflections from a Writing Project Summer Institute.

    ERIC Educational Resources Information Center

    Sudol, Ron

    2003-01-01

    Considers how the Meadow Brook Writing Project's summer institute provides a fertile field for reflection because it involves experienced and successful teachers in a process of critical review of what works and what does not, and how to bring about change. Discusses the power of personal writing. Considers teachers of old and young, and teachers…

  18. MARK TWAIN SUMMER INSTITUTE, 1965 SESSION. GENERAL CATALOGUE OF INFORMATION AND COURSES OFFERED.

    ERIC Educational Resources Information Center

    LEMEN, ROBERT F.

    THE MARK TWAIN SUMMER INSTITUTE OFFERED CHALLENGING EDUCATIONAL OPPORTUNITIES, PROVIDED EXCELLENT TEACHERS AN OPPORTUNITY TO DEVELOP NEW TECHNIQUES, AND OFFERED AN "INTERN-TEACHER" PROGRAM. THE STUDENTS QUALIFIED TO ATTEND WERE ABLE SECONDARY STUDENTS FROM GRADES 9 THROUGH 12. EACH STUDENT WOULD TAKE ONE NON-CREDIT HIGH SCHOOL COURSE. THE…

  19. Summer Institute of Linguistics Australian Aborigines and Islanders Branch. Annual Report 1989.

    ERIC Educational Resources Information Center

    Summer Inst. of Linguistics, Darwin (Australia). Australian Aborigines Branch.

    Approximately 47,000 people in Australia speak an Aboriginal or Islander language as their first language and have better comprehension in one of these languages than in English. Recognizing this, and desiring to provide biblical translations in these languages, the Australian Aborigines and Islanders Branch of the Summer Institute of Linguistics…

  20. Political Issues in Education. A Report of the 1978 Chief State School Officers Summer Institute.

    ERIC Educational Resources Information Center

    Israel, William I., Ed.

    Collected in this volume are the papers presented at the 1978 Chief State School Officers Summer Institute. The program was devoted to political issues in education and focused on a number of current educational problems. Political issues were discussed in relation to a number of areas, including federal education priorities, federal-state…

  1. Individualization: Addressing Educational Needs of Migrant Children. 1981 Summer Institute Evaluation Summary.

    ERIC Educational Resources Information Center

    Colorado Migrant Education Resource Center (CoMerc), Longmont.

    Intended for project directors, consultants, Colorado Department of Education personnel, and other interested persons, this report examines the overall usefulness of the Colorado Migrant Education Resource Center's (CoMERC's) efforts in putting on an institute for summer migrant school instructional staff. The first section describes the planning,…

  2. Financial Management and Job Social Skills Training Components in a Summer Business Institute

    ERIC Educational Resources Information Center

    Donohue, Brad; Conway, Debbie; Beisecker, Monica; Murphy, Heather; Farley, Alisha; Waite, Melissa; Gugino, Kristin; Knatz, Danielle; Lopez-Frank, Carolina; Burns, Jack; Madison, Suzanne; Shorty, Carrie

    2005-01-01

    Ninety-two adolescents, predominantly ethnic minority high school students, participated in a structured Summer Business Institute (SBI). Participating youth were randomly assigned to receive either job social skills or financial management skills training components. Students who additionally received the job social skills training component were…

  3. Work Papers. Summer Institute of Linguistics, University of North Dakota Sessions, Vol. 22.

    ERIC Educational Resources Information Center

    Daly, John, Ed.

    This collection of papers from the Summer Institute of Linguistics contains the following articles: (1) "Texmelucan Suprasegmental Phonology," by C. H. Speck; (2) "Some Discourse Features in Siberian Yupik Eskimo," by D. C. and M. R. Shinen; (3) "The Particle t'ah in Slavey Discourse," by C. Harrison and V. Monus; (4) "The Point-Line Dimension in…

  4. Work Papers of the Summer Institute of Linguistics, University of North Dakota Session, Volume 24.

    ERIC Educational Resources Information Center

    Daly, John P.; Daly, Margaret H.

    The working papers in this volume, written by staff and advanced students of the Summer Institute of Linguistics at the University of North Dakota, include the following: "The Antigone Constraint" (David Tuggy); "Clause Types in Southeastern Tepehuan" (Thomas L. Willett); "Sentence Components in Southeastern Tepehuan" (Thomas L. Willett); "Ethical…

  5. The SLAC polarized electron source

    SciTech Connect

    Clendenin, J.E.; Alley, R.; Frisch, J.; Kotseroglou, T.; Mulhollan, G.; Schultz, D.; Tang, H.; Turner, J.; Yeremian, A.D.

    1998-01-01

    Since 1992, the SLAC 3-km linac has operated exclusively with {ital polarized} electrons. The polarized electron source is highly reliable, remotely operated and monitored, and able to produce a variety of electron bunch profiles for high-energy physics experiments. The source and its operating characteristics are described. Some implications drawn from the operating experience are discussed. {copyright} {ital 1998 American Institute of Physics.}

  6. 2007 Annual Report Summer Research Institute Interfacial and Condensed Phase Chemical Physics

    SciTech Connect

    Beck, Kenneth M.

    2007-10-31

    The Pacific Northwest National Laboratory (PNNL) hosted its fourth annual Summer Research Institute in Interfacial and Condensed Phase Chemical Physics from April through September 2007. During this time, 21 PNNL scientists hosted 23 participants from 20 different universities. Of the 23 participants, 20 were graduate students, 1 was a postdoctoral fellow, and 2 were university faculty members. This report covers the essense of the program and the research the participants performed.

  7. 2006 Annual Report Summer Research Institute Interfacial and Condensed Phase Chemical Physics

    SciTech Connect

    Avery, Nikki B.; Barlow, Stephan E.

    2006-11-10

    The Pacific Northwest National Laboratory (PNNL) hosted its third annual Summer Research Institute in Interfacial and Condensed Phase Chemical Physics from May through September 2006. During this period, twenty PNNL scientists hosted twenty-seven scientists from twenty-five different universities. Of the twenty-seven participants, one was a graduating senior; twenty-one were graduate students; one was a postdoctoral fellow; and four were university faculty members.

  8. The 2013 Summer Undergraduate Research Internship Program at the Pisgah Astronomical Research Institute

    NASA Astrophysics Data System (ADS)

    Castelaz, Michael W.; Cline, J. D.; Whitworth, C.; Clavier, D.; Barker, T.

    2014-01-01

    Pisgah Astronomical Research Institute (PARI) offers summer undergraduate research internships. PARI has received support for the internships from the EMC Corporation, private donations, private foundations, and through a collaboration with the Pisgah Astronomical Research and Education Center of the University of North Carolina - Asheville. The internship program began in 2001 with 4 students. This year 10 funded students participated. Mentors for the interns include PARI’s Directors of Science, Education, and Information Technology and visiting faculty who are members of the PARI Research Faculty Affiliate program. Students work with mentors on radio and optical astronomy research, electrical engineering for robotic control of instruments, software development for instrument control and and science education by developing curricula and multimedia and teaching high school students in summer programs at PARI. At the end of the summer interns write a paper about their research which is published in the PARI Summer Student Proceedings. Students are encouraged to present their research at AAS Meetings. We will present a summary of specific research conducted by the students with their mentors.

  9. The Summer Undergraduate Research Internship Program at the Pisgah Astronomical Research Institute

    NASA Astrophysics Data System (ADS)

    Castelaz, Michael W.; Cline, J.; Whitworth, C.; Clavier, D.

    2011-01-01

    Pisgah Astronomical Research Institute (PARI) offers summer undergraduate research internships. PARI has received support for the internships from the NC Space Grant Consortium, NSF awards for public science education, private donations, private foundations, and through a collaboration with the Pisgah Astronomical Research and Education Center of the University of North Carolina - Asheville. The internship program began in 2001 with 4 students. This year 9 funded students participated in 2010. Mentors for the interns include PARI's Directors of Science, Education, and Information Technology and visiting faculty who are members of the PARI Research Affiliate Faculty program. Students work with mentors on radio and optical astronomy research, electrical engineering for robotic control of instruments, software development for instrument control and applets for citizen science projects, and science education by developing curricula and multimedia and teaching high school students in summer programs at PARI. At the end of the summer interns write a paper about their research which is published in the PARI Summer Student Proceedings. Several of the students have presented their results at AAS Meetings. We will present a summary of specific research conducted by the students with their mentors, the logistics for hosting the PARI undergraduate internship program, and plans for growth based on the impact of an NSF supported renovation to the Research Building on the PARI campus.

  10. The Summer Undergraduate Research Internship Program at the Pisgah Astronomical Research Institute

    NASA Astrophysics Data System (ADS)

    Cline, J. Donald; Castelaz, M.; Whitworth, C.; Clavier, D.; Owen, L.; Barker, T.

    2012-01-01

    Pisgah Astronomical Research Institute (PARI) offers summer undergraduate research internships. PARI has received support for the internships from the NC Space Grant Consortium, NSF awards for public science education, private donations, private foundations, and through a collaboration with the Pisgah Astronomical Research and Education Center of the University of North Carolina - Asheville. The internship program began in 2001 with 4 students. This year 7 funded students participated in 2011. Mentors for the interns include PARI's Science, Education, and Information Technology Directors and visiting faculty who are members of the PARI Research Affiliate Faculty program. Students work with mentors on radio and optical astronomy research, electrical engineering for robotic control of instruments, software development for instrument control and software for citizen science projects, and science education by developing curricula and multimedia and teaching high school students in summer programs at PARI. At the end of the summer interns write a paper about their research which is published in the PARI Summer Student Proceedings. Several of the students have presented their results at AAS Meetings. We will present a summary of specific research conducted by the students with their mentors, the logistics for hosting the PARI undergraduate internship program, and plans for growth based on the impact of an NSF supported renovation to the Research Building on the PARI campus.

  11. SLAC All Access: FACET

    SciTech Connect

    Hogan, Mark

    2012-07-05

    SLAC's Facility for Advanced Accelerator Experimental Tests, or FACET, is a test-bed where researchers are developing the technologies required for particle accelerators of the future. Scientists from all over the world come to explore ways of improving the power and efficiency of the particle accelerators used in basic research, medicine, industry and other areas important to society. In this video, Mark Hogan, head of SLAC's Advanced Accelerator Research Department, offers a glimpse into FACET, which uses part of SLAC's historic two-mile-long linear accelerator.

  12. SLAC All Access: FACET

    ScienceCinema

    Hogan, Mark

    2014-09-15

    SLAC's Facility for Advanced Accelerator Experimental Tests, or FACET, is a test-bed where researchers are developing the technologies required for particle accelerators of the future. Scientists from all over the world come to explore ways of improving the power and efficiency of the particle accelerators used in basic research, medicine, industry and other areas important to society. In this video, Mark Hogan, head of SLAC's Advanced Accelerator Research Department, offers a glimpse into FACET, which uses part of SLAC's historic two-mile-long linear accelerator.

  13. GPS Activities at SLAC

    SciTech Connect

    Behrend, Dirk

    2002-11-19

    The Alignment Engineering Group of the Stanford Linear Accelerator Center (SLAC) started to use RTK (real-time kinematic) GPS equipment in order to perform structure mapping and GIS-related tasks on the SLAC campus. In a first step a continuously observing GPS station (SLAC M40) was set up. This station serves as master control station for all differential GPS activities on site and its coordinates have been determined in the well-defined global geodetic datum ITRF2000 at a given reference epoch. Some trials have been performed to test the RTK method. The tests have proven RTK to be very fast and efficient.

  14. All About SLAC: What Goes on in the World's Longest Building?

    SciTech Connect

    Calder, Neil

    2004-02-24

    Ever wonder what goes on behind SLAC's doors? Here is your chance to find out what SLAC is all about: the research, the facilities, and the people that make this world-class research institute what it is today.

  15. Evaluation of the Appalachian Regional Commission Oak Ridge National Laboratory Summer Institute for Math/Science/Technology

    ERIC Educational Resources Information Center

    Simkin, Linda S.; Futch, Valerie

    2006-01-01

    This report describes some of the key immediate and long-term outcomes achieved by the Appalachian Regional Commission (ARC)-Oak Ridge National Laboratory (ORNL) Summer Institute for Math/Science/Technology for student and teacher participants. This two-week summer program provides high school students and teachers from the Appalachian region the…

  16. 1992 Environmental Summer Science Camp Program evaluation. The International Environmental Institute of Westinghouse Hanford Company

    SciTech Connect

    Not Available

    1993-07-01

    This report describes the 1992 Westinghouse Hanford Company/US Department of Energy Environmental Summer Science Camp. The objective of the ``camp`` was to motivate sixth and seventh graders to pursue studies in math, science, and the environment. This objective was accomplished through hands-on fun activities while studying the present and future challenges facing our environment. The camp was funded through Technical Task Plan, 424203, from the US Department of Energy-Headquarters, Office of Environmental Restoration and Waste Management, Technology Development,to Westinghouse Hanford Company`s International Environmental Institute, Education and Internship Performance Group.

  17. Recommendation for funding the 1992 Global Change Summer Institute: Industrial ecology and global change

    SciTech Connect

    Fein, J.S.

    1992-12-31

    A summer institute on Industrial Ecology and Global Change was held at Snow Mass, Colorado, July 20--31, 1992. Topics of discussion included the following: the patterns and prospects of global industrialization; the vulnerability of the global environment to human activity; how industrial activity might be reconfigured in response to a deeper understanding of the major biogeochemical cycles in which this activity is embedded; how industrial activity might be reconfigured in response to a deeper understanding of associated exotic disturbances of the environment; interactions of human activity with basic environmental cycles; human activity in the form of exotic disturbance of the environment; and the dynamics of industrial development and the environmental implications.

  18. 2012 Summer Research Experiences for Undergraduates at Pisgah Astronomical Research Institute

    NASA Astrophysics Data System (ADS)

    Castelaz, Michael W.; Cline, J. D.; Whitworth, C.; Clavier, D.; Owen, L.

    2013-01-01

    Pisgah Astronomical Research Institute (PARI) offers research experiences for undergraduates (REU). PARI receives support for the internships from the NC Space Grant Consortium, NSF awards, private donations, and industry partner funding. The PARI REU program began in 2001 with 4 students and has averaged 6 students per year over the past 11 years. This year PARI hosted 8 funded REU students. Mentors for the interns include PARI’s Science, Education, and Information Technology staff and visiting faculty who are members of the PARI Research Faculty Affiliate program. Students work with mentors on radio and optical astronomy research, electrical engineering for robotic control of instruments, software development for instrument control and software for citizen science projects, and science education by developing curricula and multimedia and teaching high school students in summer programs at PARI. At the end of the summer interns write a paper about their research which is published in the annually published PARI Summer Student Proceedings. Several of the students have presented their results at AAS Meetings. We will present a summary of specific research conducted by the students with their mentors and the logistics for hosting the PARI undergraduate internship program.

  19. Summer Institute in Science. A Category 1 Summer Inservice Program for Elementary and Secondary Teachers of Science in the State of Texas.

    ERIC Educational Resources Information Center

    Crawley, Frank E.

    The Summer Institute in Science was developed to address the need for updated information and training in physics, chemistry, and technology among elementary and secondary teachers. Three major objectives addressed were to: (1) improve teachers' understanding of basic concepts in the subject field; (2) provide teachers with training in the use of…

  20. The Computer Challenge. [Proceedings of the Summer Institute for Computer Literacy (Malibu, California, June 20-24, 1982).

    ERIC Educational Resources Information Center

    Penrod, James I., Ed.

    The Summer Institute of Computer Literacy, held at Pepperdine University in 1982, dealt with the uses of computing in higher education administration. These proceedings contain papers from presenters at the Institute. Every presentation paper could not be obtained; in such cases permission was secured to print a previously published paper authored…

  1. AN EIGHT WEEK SUMMER INSTITUTE TRAINING PROGRAM TO RETRAIN OFFICE EDUCATION TEACHERS FOR TEACHING BUSINESS ELECTRONIC DATA PROCESSING.

    ERIC Educational Resources Information Center

    BREESE, WILLIAM E.

    A 16-WEEK TWO-SUMMER INSTITUTE WAS HELD TO ASSIST IN DEVELOPING THE KNOWLEDGE AND SKILL ESSENTIAL FOR TEACHING SPECIALIZED COURSES IN A 2-YEAR CURRICULUM IN BUSINESS ELECTRONIC DATA PROCESSING. THE REPORT DESCRIBES THE INSTITUTE'S ENROLLMENT, ENVIRONMENT (AREA AND SCHOOL), TEACHING STAFF, TEXT MATERIAL, AND COURSE OUTLINES. EVALUATIONS BY BOTH THE…

  2. Are Summer Institutes Funded by FHWA and State Departments of Transportation Effective? Case Studies of Evaluation and Learning Strategies

    ERIC Educational Resources Information Center

    Aleong, Chandra; Aleong, John

    2008-01-01

    For the last three years Delaware State University (DSU) and the University of Vermont (UVM) have implemented a new approach to a summer program or "Institute" that emphasizes evaluation and accountability. Beginning in 2005, both institutes changed the focus of their programs to fulfill not only the primary objectives of instilling inquiry and…

  3. SLAC linear collider

    SciTech Connect

    Richter, B.; Bell, R.A.; Brown, K.L.

    1980-06-01

    The SLAC LINEAR COLLIDER is designed to achieve an energy of 100 GeV in the electron-positron center-of-mass system by accelerating intense bunches of particles in the SLAC linac and transporting the electron and positron bunches in a special magnet system to a point where they are focused to a radius of about 2 microns and made to collide head on. The rationale for this new type of colliding beam system is discussed, the project is described, some of the novel accelerator physics issues involved are discussed, and some of the critical technical components are described.

  4. 2008 Summer Research Institute Interfacial and Condensed Phase Chemical Physics Annual Report

    SciTech Connect

    Garrett, Bruce C.; Tonkyn, Russell G.; Avery, Nachael B.

    2008-11-01

    For the fifth year, the Pacific Northwest National Laboratory in Richland, Washington, invited graduate students, postdoctoral fellows, university faculty, and students entering graduate students from around the world to participate in the Summer Research Institute in Interfacial and Condensed Phase Chemical Physics. The institute offers participants the opportunity to gain hands-on experience in top-notch research laboratories while working along internationally respected mentors. Of the 38 applicants, 20 were accepted for the 8- to 10-week program. The participants came from universities as close as Seattle and Portland and as far away as Germany and Singapore. At Pacific Northwest National Laboratory, the 20 participants were mentored by 13 scientists. These mentors help tailor the participant’s experience to the needs of that person. Further, the mentors provide guidance on experimental and theoretical techniques, research design and completion, and other aspects of scientific careers in interfacial and condensed phase chemical physics. The research conducted at the institute can result in tangible benefits for the participants. For example, many have co-authored papers that have been published in peer-reviewed journals, including top-rated journals such as Science. Also, they have presented their research at conferences, such as the Gordon Research Conference on Dynamics at Surfaces and the AVS national meeting. Beyond that, many of the participants have started building professional connections with researchers at Pacific Northwest National Laboratory, connections that will serve them well during their careers.

  5. SLAC Linear Collider

    SciTech Connect

    Richter, B.

    1985-12-01

    A report is given on the goals and progress of the SLAC Linear Collider. The status of the machine and the detectors are discussed and an overview is given of the physics which can be done at this new facility. Some ideas on how (and why) large linear colliders of the future should be built are given.

  6. SLAC linear collider

    SciTech Connect

    Hollebeek, R.

    1980-06-01

    A brief description of the proposed SLAC Linear Collider is given. This machine would investigate the possibilities and limitations of Linear Colliders while at the same time producing thousands of Z/sup 0/ particles per day for the study of the weak interactions.

  7. FACET: SLAC___s New User Facility

    SciTech Connect

    Clarke, C.I.; Decker, F.-J.; England, R.J.; Erickson, R.A.; Hast, C.; Hogan, M.J.; Li, S.Z.; Litos, M.D.; Nosochkov, Y.; Seeman, J.T.; Sheppard, J.; Wienands, U.; Woodley, M.; Yocky, G.; /SLAC

    2012-05-16

    FACET (Facility for Advanced Accelerator Experimental Tests) is a new User Facility at SLAC National Accelerator Laboratory. The first User Run started in spring 2012 with 20 GeV, 3 nC electron beams. The facility is designed to provide short (20 {micro}m) bunches and small (20 {micro}m wide) spot sizes, producing uniquely high power beams. FACET supports studies from many fields but in particular those of Plasma Wakefield Acceleration and Dielectric Wakefield Acceleration. The creation of drive and witness bunches and shaped bunch profiles is possible with 'Notch' Collimation. FACET is also a source of THz radiation for material studies. Positrons will be available at FACET in future user runs. We present the User Facility and the available tools and opportunities for future experiments.

  8. FCCSET/CEHR summer institutes for teacher development in science, mathematics, and technology. Final report

    SciTech Connect

    1997-05-01

    This report summarizes the profiling procedure that grantees used to carry out a formative evaluation of their summer institutes. It discusses programmatic issues identified through profiling as well as how well the profiling process worked for the grantees. The report contains recommendations on both programmatic issues and profiling for NSTC/DOE, NCISE (the technical assistance provider), and the grantees themselves. In early September NCISE held its second workshop for NSTC grantees. Data from the evaluation of this two-day event generated six recommendations for DOE and the technical assistance provider. This NCISE report summarizes the two-year process NCISE used in attempting to help the grantees establish some indicators of success. A number of indicators were identified the first year with others added the second year. Additionally, a compilation of the various measures for the indicators of success developed collaboratively by NCISE and grantees is included. Although these indicators are not mandatory, they do provide guides for grantees in assessing the impact of the institutes. Embedded in the report are several recommendations for NSTC/DOE and the technical assistance provider.

  9. iSTEM Summer Institute: An Integrated Approach to Teacher Professional Development inSTEM

    SciTech Connect

    Anne Seifert; Louis Nadelson

    2012-04-01

    The importance of STEM education to our national prosperity and global competitiveness was recently reinforced by the Obama administration support for Change the Equation. Change the Equation is a multi-entity initiative formed in response to the rapidly increasing demand for STEM related careers and the potential lack of preparation by many Americans to be employed in these positions. To address the issue many are calling for increased emphasis on K-12 STEM education, as early preparation in STEM provides the foundation essential for further learning and competencies (National Research Council, 2007). Achieving and sustaining depth and breadth of K-12 STEM education is inextricably linked to ongoing professional development of K-12 educators. The need for teacher continuing education in STEM education and the link between teacher effectiveness and student preparation in STEM was the impetus behind our i- STEM professional development summer institute. The i-STEM initiative is a collaborative effort between business, industry, government, K-12, and higher education. Although the organization is working on a number of projects, including policy, research, communication, and collaborations, the i-STEM group has directed significant resources toward K-12 educator professional development opportunities in STEM. Our report focuses on the structure and impact of the intensive four-day i-STEM residential professional development institute which we designed to increase the capacity of grade 4-9 teachers to teach STEM content. We structured the summer institute using the outcome of a survey we conducted of grade 4-9 teachers’ to assess their STEM professional development needs, the extant literature on teacher development, the increasing need for a STEM informed society, and our desire to use evidence based practices to enhance teacher capacity to teach STEM content. We developed this investigation to determine if our summer institute influenced the participating teachers comfort with teaching STEM, efficacy for teaching STEM, content knowledge of STEM, inquiry implementation in STEM, and perceptions of STEM education. These parameters in-part have been gathered previously for specific areas of math or science education, but we are not aware of any study in which these variables have been attended to and assessed in the context of enhancing inservice teacher preparation to teach STEM. Therefore, our project provides a unique contribution to the literature because of our focus on STEM education and our adaptation and use of an array of assessment tools to measure the impact on our participants’ perceptions of teaching STEM, affective perspectives, and knowledge of the related content. Further, we are responding to the position of Putnam and Borko (2000) who contend there has been a dearth of attention paid toward creating teacher professional development experiences consistent with the teacher learning and investigations of the impact of the experience on the participating educators. Before we present our research and results, we discuss the relevant literature establishing the justification for our study. Following the presentation of our study results we discuss the related implications and directions for future research. We conclude with a discussion of study limitations and some closing remarks of our study contributions to the field of teacher professional development in STEM education.

  10. SLAC B Factory computing

    SciTech Connect

    Kunz, P.F.

    1992-02-01

    As part of the research and development program in preparation for a possible B Factory at SLAC, a group has been studying various aspects of HEP computing. In particular, the group is investigating the use of UNIX for all computing, from data acquisition, through analysis, and word processing. A summary of some of the results of this study will be given, along with some personal opinions on these topics.

  11. Sleepless at SLAC

    SciTech Connect

    Dement, William

    2006-01-23

    Feeling tired? More than 30 million Americans suffer from sleep disorders. Nevertheless, as a society we remain largely ignorant of the significance of sleep in determining the quality of our waking lives. Dr. William Dement, Stanford Professor and one of the world's foremost experts on sleep and sleep deprivation, joins SLAC's Colloquium Series to present exciting new findings in the field of sleep research. You'll never sleep the same again!

  12. The SLAC lasertron project

    SciTech Connect

    Sinclair, C.K.

    1986-10-01

    SLAC has a program underway to develop an efficient high power microwave source for accelerator applications employing a photoemission cathode, the so-called lasertron. After a brief discussion of the lasertron idea, the various elements of the current program are reviewed. A proof-of-principle experiment to build a 35 MW, 70% efficiency, S-band microwave source is nearing completion. Actual RF power testing is expected to begin in late 1986 or early 1987.

  13. SLAC synchronous condenser

    SciTech Connect

    Corvin, C.

    1995-06-01

    A synchronous condenser is a synchronous machine that generates reactive power that leads real power by 90{degrees} in phase. The leading reactive power generated by the condenser offsets or cancels the normal lagging reactive power consumed by inductive and nonlinear loads at the accelerator complex. The quality of SLAC`s utility power is improved with the addition of the condenser. The inertia of the condenser`s 35,000 pound rotor damps and smoothes voltage excursions on two 12 kilovolt master substation buses, improving voltage regulation site wide. The condenser absorbs high frequency transients and noise in effect ``scrubbing`` the electric system power at its primary distribution source. In addition, the condenser produces a substantial savings in power costs. Federal and investor owned utilities that supply electric power to SLAC levy a monthly penalty for lagging reactive power delivered to the site. For the 1993 fiscal year this totaled over $285,000 in added costs for the year. By generating leading reactive power on site, thereby reducing total lagging reactive power requirements, a substantial savings in electric utility bills is achieved. Actual savings of $150,000 or more a year are possible depending on experimental operations.

  14. Teacher Training Institute for Native American Bilingual/Bicultural Education. Phase I (S.U.N.Y. Brockport, Summer, 1978).

    ERIC Educational Resources Information Center

    New York State Education Dept., Albany. Office of Cultural Education.

    A two week teacher training institute for Native American bilingual/bicultural education was held in the summer of 1978 at Brockport State University of New York. Educational Programs for bilingual and bicultural learning environments for Native American students had been hampered by insufficient teachers and teacher trainers and the use of…

  15. Student-Athlete Perceptions of a Summer Pre-Enrollment Experience at an NCAA Division I-AAA Institution

    ERIC Educational Resources Information Center

    Dalgety, Michael Franklin

    2012-01-01

    The purpose of this exploratory qualitative study was to examine student-athlete perceptions of the role of summer pre-enrollment in their adjustment and transition to college. The study focused on student-athletes who received athletically-related financial aid at a National Collegiate Athletic Association (NCAA) Division I-AAA institution. The…

  16. Work Papers of the Summer Institute of Linguistics, University of North Dakota Session, (Grand Forks, North Dakota 1985). Volume 29.

    ERIC Educational Resources Information Center

    Derbyshire, Desmond C., Ed.

    Preliminary versions of the papers from the 1985 Summer Institute of Linguistics presented at the University of North Dakota session include: "Referential Distance and Discourse Structure in Yagua" (Thomas E. Payne); "A Note on Ergativity, S', and S'' in Karitiana" (Daniel Everett); "Some Aspects of Zapotecan Clausal Syntax" (Stephen A. Marlett);…

  17. Student-Athlete Perceptions of a Summer Pre-Enrollment Experience at an NCAA Division I-AAA Institution

    ERIC Educational Resources Information Center

    Dalgety, Michael Franklin

    2012-01-01

    The purpose of this exploratory qualitative study was to examine student-athlete perceptions of the role of summer pre-enrollment in their adjustment and transition to college. The study focused on student-athletes who received athletically-related financial aid at a National Collegiate Athletic Association (NCAA) Division I-AAA institution. The…

  18. Teaching dairy production medicine to entry-level veterinarians: the summer dairy institute model.

    PubMed

    Nydam, Charles W; Nydam, Daryl V; Guard, Charles L; Gilbert, Robert O

    2009-01-01

    Food supply veterinarians who intend to enter dairy cattle practice or other related career activities are in need of up-graded skills to better serve the dairy industry as it continues to evolve. The time available for students to increase their abilities within the conventional professional curriculum is scarce, especially as those with food-supply interests are a minority of students competing for time and resources. The dairy industry has need of skilled veterinarians who are not only well versed in their traditional capabilities, but who also have an understanding of the complete picture of that industry as a "farm-to-fork" experience. Society at large also stands to benefit from the presence of skilled dairy veterinarians contributing to the production of safe, affordable dairy foodstuffs in a manner deemed sustainable and humane. Veterinarians in practice can and do acquire the necessary skills to make themselves relevant to their clients and consumers; however, better preparation of entry-level veterinarians could increase their value to their employers, clients, themselves, and society in a more timely manner. Cornell University's College of Veterinary Medicine developed the Summer Dairy Institute to provide an avenue for advancing the skills of new veterinarians as a means to address the current and future needs of the dairy industry. This article describes the need for, concept of, and experience with that program. PMID:19435986

  19. The Proceedings of the 28th SLAC Summer Institute on Particle Physics: Neutrinos From The Lab, The Sun, And The Cosmos (SSI 2000)

    SciTech Connect

    Jaros, J

    2004-05-17

    Interest in cosmic sources of high energy neutrinos dates back to the late 1950's. This paper outlines the interdisciplinary scientific agenda, which span the fields of astronomy, particle physics, and cosmic ray physics. While the general detection principles based on optical Cherenkov radiation have been understood for many years, the unusual geographic locations of suitable detector sites have challenged the ingenuity of experimentalists. Two high energy neutrino programs are now operating (NT200 in Lake Baikal and the AMANDA detector), with the expectation of ushering in the era of multi-messenger astronomy. Two Mediterranean-based programs have made impressive progress. These detectors are optimized to detect neutrinos with energies of the order of 1-10 TeV, although they are capable of detecting neutrinos over a much broader range of energies. For E{sub {nu}} > 10{sup 15} eV, several new ideas are being exploited to expand the effective volume of the detector. These techniques are based on the detection of neutrino-initiated cascades. We describe the ongoing worldwide efforts to develop expandable techniques and offer an assessment of their relative capabilities.

  20. Luminosity enhancements at SLAC

    SciTech Connect

    Coward, D.H.

    1984-04-01

    Several ideas are discussed that have been proposed to improve the luminosity at the SPEAR and PEP electron-positron storage rings and to insure good luminosity at the SLAC Linear Collider. There have been two proposals studied recently for SPEAR: a Microbeta insertion using Samarium Cobalt permanent magnets, and a Minibeta insertion using conventional quadrupole magnets. The notations Microbeta and minibeta used here are somewhat arbitrary since the front faces of the first quadrupole magnets for both insertions are at nearly the same distance from the interaction point.

  1. Teaching and Training in Geoinformatics: Experiences from the Cyberinfrastructure Summer Institute for Geoscientists (CSIG)

    NASA Astrophysics Data System (ADS)

    Smeekens, M.; Baru, C.; Keller, G. R.; Arrowsmith, R.; Crosby, C. J.

    2009-12-01

    The Cyberinfrastructure Summer Institute for Geoscientists (CSIG) has been conducted each year since 2004 under sponsorship of the GEON project that is funded by the NSF. The goal of the institute, which is broadly advertised to the Geoscience community, is to introduce geoscientists to Computer Science concepts and commonly-used as well as emergent information technology tools. The week-long program originally covered topics ranging from Data Modeling, Web Services, and Geographic Information Systems, to brief introductions to key concepts in Grid Computing, Parallel Programming, and Scientific Workflows. However, the program as well as the composition and expectations of the audience have evolved over time. Detailed course and instructor evaluations provide valuable feedback on course content and presentation approaches, and are used to plan future CSIG curriculum. From an initial emphasis on Geoscience graduate students and postdocs, the selection process has evolved to encourage participation by individuals with backgrounds in Geoscience as well as Computer Science from academia, government agencies, and industry. More recently, there has been an emphasis on selecting junior faculty and those interested in teaching Geoinformatics courses. While the initial objective of CSIG was to provide an overview of information technology topics via lectures and demonstrations, over time attendees have become more interested in specific instruction in how informatics and cyberinfrastructure (CI) capabilities could be utilized to address issues in Earth Science research and education. There have been requests over the years for more in-depth coverage on some topics and hands-on exercises. The program has now evolved to include a “Build Track”, focused on IT issues related to the development and implementation of Geoinformatics systems, and an “Education Track”, focused on use of Geoinformatics resources in education. With increasing awareness of CI projects, the audience is also becoming more interested in an introduction to the broader landscape of CI activities in the Geosciences and related areas. In the future, we plan a “demo” session to showcase various CI projects. Attendees will not only hear about such projects but will be able to use and experience the cyber-environments and tools in a hands-on session. The evolution of the CSIG program reflects major changes in the IT landscape since 2004. Where we once discussed Grid Computing, students are now learning about Cloud Computing and related concepts. An institute like CSIG play an important role in providing “cross-training” such that geoscientists gain insight into IT issues and solution approaches, while computer scientist gain a better appreciation of the needs and requirements of geoscience applications. In this presentation, we will summarize and analyze the trends over the years in program as well as audience composition; discuss lessons learnt over the years; and present our plan for future CSIG offerings.

  2. Meeting Report: The First National Academies Summer Institute for Undergraduate Education in Biology

    ERIC Educational Resources Information Center

    Wood, William; Gentile, James

    2003-01-01

    The 2002 NRC Report "Bio 2010" (NRC, 2003), calling for changes in undergraduate education for biologists, suggested the establishment of summer workshops to help implement reform. While the report was in press, Millard Susman, a retired genetics professor at the University of Wisconsin, Madison, and Bob Yuan, a professor at University of…

  3. The American Indian Summer Institute in Earth System Science (AISESS) at UC Irvine: A Two-Week Residential Summer Program for High School Students

    NASA Astrophysics Data System (ADS)

    Johnson, K. R.; Polequaptewa, N.; Leon, Y.

    2012-12-01

    Native Americans remain severely underrepresented in the geosciences, despite a clear need for qualified geoscience professionals within Tribal communities to address critical issues such as natural resource and land management, water and air pollution, and climate change. In addition to the need for geoscience professionals within Tribal communities, increased participation of Native Americans in the geosciences would enhance the overall diversity of perspectives represented within the Earth science community and lead to improved Earth science literacy within Native communities. To address this need, the Department of Earth System Science and the American Indian Resource Program at the University California have organized a two-week residential American Indian Summer Institute in Earth System Science (AISESS) for high-school students (grades 9-12) from throughout the nation. The format of the AISESS program is based on the highly-successful framework of a previous NSF Funded American Indian Summer Institute in Computer Science (AISICS) at UC Irvine and involves key senior personnel from the AISICS program. The AISESS program, however, incorporates a week of camping on the La Jolla Band of Luiseńo Indians reservation in Northern San Diego County, California. Following the week of camping and field projects, the students spend a week on the campus of UC Irvine participating in Earth System Science lectures, laboratory activities, and tours. The science curriculum is closely woven together with cultural activities, native studies, and communication skills programs The program culminates with a closing ceremony during which students present poster projects on environmental issues relevant to their tribal communities. The inaugural AISESS program took place from July 15th-28th, 2012. We received over 100 applications from Native American high school students from across the nation. We accepted 40 students for the first year, of which 34 attended the program. The objective of the program is to introduce students to Earth System Science and, hopefully, inspire them to pursue Earth or Environmental Science degrees. Towards this end, we developed a fairly broad curriculum which will be presented here. Evaluation planning was conducted during the first quarter of 2012 during recruitment. A longitudinal database was established for the project to track college preparatory course-taking, GPA, school attendance, participation in earth science activities, and attitudes and interest in attending college and completing a degree after high school. Based on attendance during AISESS, schools and students will be selected as descriptive case studies. A pre-post design for evaluating the Summer Institute includes a survey about student background, attitudes, and knowledge about preparing to complete high school and attend college after graduation and focus groups of participants immediately after the Institute to capture qualitative data about their experiences in the field and at the University. Initial evaluation results will be presented here.

  4. The Minneapolis Heart Institute Foundation Summer Research Internship Program: the benefits of preprofessional experience for prospective physicians.

    PubMed

    Willenbring, Benjamin D; McKee, Katherine C; Wilson, Betsy V; Henry, Timothy D

    2008-08-01

    There is a distinct shortage of preprofessional opportunities for undergraduate premedical students. During the last 7 summers, the Minneapolis Heart Institute Foundation Summer Research Internship Program has exposed interested students to cardiology and clinical research. The goals of the internship program are threefold: to bring students in contact with the medical profession, to offer experiences in the various disciplines of cardiology, and to introduce students to clinical research. The success of the program can be measured by its influence on participants' academic pursuits and scholarly contributions. Of the 65 internship alumni, 52 are studying to become physicians and most of the others are in health-related fields. Interns have also contributed abstracts and manuscripts to peer-reviewed journals and presented their research at major conferences. PMID:18773709

  5. SLAC All Access: Laser Labs

    SciTech Connect

    Minitti, Mike; Woods Mike

    2013-03-01

    From supermarket checkouts to video game consoles, lasers are ubiquitous in our lives. Here at SLAC, high-power lasers are critical to the cutting-edge research conducted at the laboratory. But, despite what you might imagine, SLAC's research lasers bear little resemblance to the blasters and phasers of science fiction. In this edition of All Access we put on our safety goggles for a peek at what goes on inside some of SLAC's many laser labs. LCLS staff scientist Mike Minitti and SLAC laser safety officer Mike Woods detail how these lasers are used to study the behavior of subatomic particles, broaden our understanding of cosmic rays and even unlock the mysteries of photosynthesis.

  6. SLAC All Access: Laser Labs

    ScienceCinema

    Minitti, Mike; Woods Mike

    2014-06-03

    From supermarket checkouts to video game consoles, lasers are ubiquitous in our lives. Here at SLAC, high-power lasers are critical to the cutting-edge research conducted at the laboratory. But, despite what you might imagine, SLAC's research lasers bear little resemblance to the blasters and phasers of science fiction. In this edition of All Access we put on our safety goggles for a peek at what goes on inside some of SLAC's many laser labs. LCLS staff scientist Mike Minitti and SLAC laser safety officer Mike Woods detail how these lasers are used to study the behavior of subatomic particles, broaden our understanding of cosmic rays and even unlock the mysteries of photosynthesis.

  7. SUMMER INSTITUTES ON FLUID POWER EDUCATION FOR VOCATIONAL AND TECHNICAL TEACHERS, 1966.

    ERIC Educational Resources Information Center

    PEARCE, THEODORE

    THESE INSTITUTES CONTINUED THE EMPHASIS OF THE 1964 AND 1965 INSTITUTES ON TRAINING TEACHERS TO TEACH FLUID POWER AND EVOLVING EFFECTIVE TECHNIQUES FOR INTRODUCING NEW TECHNOLOGIES TO EDUCATORS. THEY WERE ADMINISTERED BY THE FLUID POWER SOCIETY WHICH, THROUGH ADVISORY COMMITTEES, ESTABLISHED THE CONTENT, PROCEDURES, AND COORDINATION OF THE…

  8. 1976 Retrospect...; Proceedings of Children's Literature Institute (5th, University of Toledo, Summer, 1976).

    ERIC Educational Resources Information Center

    Moir, Hughes, Ed.; Henning, Mary Jo, Ed.

    The fifth Children's Literature Institute focused upon United States historical fiction. This volume discusses the lives, works, and ideas of the nine authors who made presentations at the institute. They are: Milton Meltzer, author of books about such minority groups as Native Americans, Blacks, and Jews; Brinton Turkle, whose books include a…

  9. Proceedings of the Summer Institute on Biological Control of Plant Insects and Diseases.

    ERIC Educational Resources Information Center

    Maxwell, Fowden G., Ed.; Harris, F. A., Ed.

    This institute, conducted at Mississippi State University, was an outgrowth of the Council of Higher Education in the Agricultural Science's efforts to study the needs and opportunities for the advancement of scientific knowledge in land grant institutions and recommend programs for implementation. The proceedings serve as an information source to…

  10. Lecture Demonstrations in Chemistry: A Two-Week Summer Institute for Pre-College Teachers.

    ERIC Educational Resources Information Center

    Serianz, Art; Graham, Dennis

    1988-01-01

    Described are the objectives, schedule and evaluation of an institute. Listed are demonstrations performed illustrating physical properties and physical change, energy changes, and chemical equilibrium. Discussed are the advantages of using demonstrations in teaching precollege chemistry. (CW)

  11. Organizational Support for the 3rd Summer Institute on Complex Plasmas, July 30 – August 8, 2012

    SciTech Connect

    Lopez, Jose L.

    2012-07-01

    This grant provided partial funds for American graduate students to attend the 3rd Graduate Summer Institute on Complex Plasmas, which was held from July 30 to August 8, 2012 at Seton Hall University in South Orange, New Jersey. The Graduate Summer Institute is a topical series of instructional workshops held bi-annually on the emerging field of complex plasmas that is jointly organized through a collaboration between American and German-European Union plasmas researchers. This specialized program brings together many of the world's leading researchers in the specialized area of complex plasmas, who freely provide instructional lectures and tutorials on the most recent research and discoveries done in this branch of plasma science. The partial funds provided by this grant helped support the travel and accommodation expenses of the participating American students and tutorial instructors. Partial funds further supported the travel and accommodation of three renown American plasma researchers that provided educational tutorials to the thirty-eight participating students from the United States, Europe, and Asia. The organized program afforded a unique opportunity for the participating American graduate students to learn about and engage more deeply in an area of plasma science that is not studied in any of the graduate educational curriculums provided by universities in the United States of America. The educational experience offered by this program provided the necessary knowledge needed by future American plasma researchers to keep the national plasma research effort on the cutting-edge and keep the national plasma community as a global leader.

  12. Evaluation of the Radiography Program at Caldwell Community College and Technical Institute--Summer, 1982.

    ERIC Educational Resources Information Center

    Pipes, V. David

    As part of a periodic evaluation of the occupational programs at Caldwell Community College and Technical Institute (CCC&TI), a study of the radiography program was conducted to collect information to facilitate planning, aid in program improvement, and meet accountability demands. The specific objectives of the program evaluation were to…

  13. Resource Units: Primary K-3, Intermediate 4-6. Migrant Child Institute, Summer 1978.

    ERIC Educational Resources Information Center

    Wheelock, Warren H., Ed.

    Presented are units prepared by the participants of Arizona's Migrant Teacher Institutes which were organized to train participants in the implementation of individualized instruction. Part I describes what a learning center is, how to begin and evaluate learning centers, and the distinguishing features between a teaching unit and a resource unit.…

  14. Summer Teacher Enhancement Institute for Science, Mathematics, and Technology Using the Problem-Based Learning Model

    NASA Technical Reports Server (NTRS)

    Petersen, Richard H.

    1997-01-01

    The objectives of the Institute were: (a) increase participants' content knowledge about aeronautics, science, mathematics, and technology, (b) model and promote the use of scientific inquiry through problem-based learning, (c) investigate the use of instructional technologies and their applications to curricula, and (d) encourage the dissemination of TEI experiences to colleagues, students, and parents.

  15. SLAC Cosmic Ray Telescope Facility

    SciTech Connect

    Va'vra, J.

    2010-02-15

    SLAC does not have a test beam for the HEP detector development at present. We have therefore created a cosmic ray telescope (CRT) facility, which is presently being used to test the FDIRC prototype. We have used it in the past to debug this prototype with the original SLAC electronics before going to the ESA test beam. Presently, it is used to test a new waveform digitizing electronics developed by the University of Hawaii, and we are also planning to incorporate the new Orsay TDC/ADC electronics. As a next step, we plan to put in a full size DIRC bar box with a new focusing optics, and test it together with a final SuberB electronics. The CRT is located in building 121 at SLAC. We anticipate more users to join in the future. This purpose of this note is to provide an introductory manual for newcomers.

  16. FACET: The New User Facility at SLAC

    SciTech Connect

    Clarke, C.I.; Decker, F.J.; Erikson, R.; Hast, C.; Hogan, M.J.; Iverson, R.; Li, S.Z.; Nosochkov, Y.; Phinney, N.; Sheppard, J.; Wienands, U.; Woodley, M.; Yocky, G.; Seryi, A.; Wittmer, W.; /Michigan State U.

    2011-12-13

    FACET (Facility for Advanced Accelerator and Experimental Tests) is a new User Facility at SLAC National Accelerator Laboratory. Its high power electron and positron beams make it a unique facility, ideal for beam-driven Plasma Wakefield Acceleration studies. The first 2 km of the SLAC linac produce 23 GeV, 3.2 nC electron and positron beams with short bunch lengths of 20 {mu}m. A final focusing system can produce beam spots 10 {mu}m wide. User-aided Commissioning took place in summer 2011 and FACET will formally come online in early 2012. We present the User Facility, the current features, planned upgrades and the opportunities for further experiments. Accelerators are our primary tool for discovering the fundamental laws to the universe. Each new frontier we probe requires a new, more powerful method. Accelerators are therefore increasing in size and cost. The future of this field requires new accelerating techniques that can reach the high energies required over shorter distances. New concepts for high gradient acceleration include utilizing the wakes in plasma and dielectric and metallic structures. FACET was built to provide a test bed for novel accelerating concepts with its high charge and highly compressed beams. As a test facility unlike any other, it has also attracted groups interested in beam diagnostic techniques and terahertz studies. The first phase of the construction was completed in May 2011. Beam commissioning began in June and was interleaved with the installation of five experiments. Users were invited to aid with the commissioning for the month of August during which time experimental hardware and software were checked out and some first measurements were taken. FACET is currently in the process of becoming a Department of Energy User Facility for High Energy Physics.

  17. GLAST beam test at SLAC

    SciTech Connect

    Engovatov, D.; Anthony, P.; Atwood, W.

    1996-10-01

    In May and June, a beam test for GLAST calorimeter technologies was conducted. A parasitic low intensity electron/tagged photon beam line into the End Station A at SLAC was commissioned and used. The preliminary stage of the test was devoted to measuring the performance of the parasitic beam. In the main test we studied the response of GLAST prototype CsI and scintillating fiber calorimeters to the electrons and photons. Results of this work are discussed.

  18. Recent GPS Results at SLAC

    SciTech Connect

    Behrend, Dirk; Imfeld, Hans L.; /SLAC

    2005-08-17

    The Alignment Engineering Group (AEG) makes use of GPS technology for fulfilling part of its above ground surveying tasks at SLAC since early 2002. A base station (SLAC M40) has been set up at a central location of the SLAC campus serving both as master station for real-time kinematic (RTK) operations and as datum point for local GPS campaigns. The Leica RS500 system is running continuously and the GPS data are collected both externally (logging PC) and internally (receiver flashcard). The external logging is facilitated by a serial to Ethernet converter and an Ethernet connection at the station. Internal logging (ring buffer) is done for data security purposes. The weatherproof boxes for the instrumentation are excellent shelters against rain and wind, but do heat up considerably in sun light. Whereas the GPS receiver showed no problems, the Pacific Crest PDL 35 radio shut down several times due to overheating disrupting the RTK operations. In order to prevent heat-induced shutdowns, a protection against direct sun exposure (shading) and a constant air circulation system (ventilation) were installed. As no further shutdowns have occurred so far, it appears that the two measures successfully mended the heat problem.

  19. Aztec Studies I. Phonological and Grammatical Studies in Modern Nahuatl Dialects. Summer Institute of Linguistics Publications in Linguistics and Related Fields.

    ERIC Educational Resources Information Center

    Robinson, Dow F., Ed.

    The articles presented in this study represent four of the seven Nahuatl dialects in which the Summer Institute of Linguistics workers are currently involved. Tentative conclusions from the dialect testing teams engaged in measuring degree of intelligibility between Nahuatl dialects suggest that almost a dozen mutually unintelligible Nahuatl areas…

  20. Course Outline and Resource Materials for Fluid Power Instruction in Secondary Schools, Prepared at the NDEA Summer Institute (Detroit, June 24-August 2, 1968).

    ERIC Educational Resources Information Center

    Wolansky, William D.; Cochran, Leslie H.

    This course outline was developed by industrial arts teachers during the 1968 National Defense Education Act summer institute. It is intended for the specific use of teachers involved in fluid power courses. A topical outline covers terminology, equipment, procedures, and safety techniques. Other sections include a book list, a book evaluation…

  1. The Effects of the Summer Institute: "New Career Options for Women Through Mathematics" on Mathematical, Social, Academic and Career Anxieties and on Sex Role Attitudes.

    ERIC Educational Resources Information Center

    Butler, Martha L.

    An evaluative report is given on the Anxiety Management Training and Sex Role Workshops of the "New Career Options for Women through Mathematics" summer institute. The overall purpose was to help remedy the problems of low utilization of the scientific and technical academic and work potential of Arkansas women, and their resulting conditions of…

  2. Making the Adjustment: A Qualitative Investigation of the Potential of Community College Developmental Summer Bridge Programs in Facilitating Student Adjustment to Four-Year Institutions

    ERIC Educational Resources Information Center

    Mitchell, Claire E.

    2013-01-01

    This study qualitatively examines whether participation in a summer bridge program situated at a community college can help students acquire the academic and college knowledge as well as "social know-how" needed to attend and succeed at a four-year higher education institution. The study's theoretical framework helps to elucidate the…

  3. Summer Bridge Programs: A Quantitative Study of the Relationship between Participation and Institutional Integration Using Tinto's Student Integration Model at a Mid-Sized, Public University in Massachusetts

    ERIC Educational Resources Information Center

    Arena, Meaghan L.

    2013-01-01

    With six-year degree completion rates for undergraduate students at a dismal 50% nationally (Weddle-West & Bingham, 2010), many institutions of higher education strive to develop programming to increase student retention rates. Summer bridge programs, an example of commonly used retention programs, seek to increase retention rates by…

  4. Documenting the Physical Universe:Preserving the Record of SLAC from 1962 to 2005

    SciTech Connect

    Deken, Jean Marie; /SLAC

    2006-03-10

    Since 1905, Albert Einstein's ''miraculous year'', modern physics has advanced explosively. In 2005, the World Year of Physics, a session at the SAA Annual meeting discusses three institutional initiatives--Einstein's collected papers, an international geophysical program, and a research laboratory--to examine how physics and physicists are documented and how that documentation is being collected, preserved, and used. This paper provides a brief introduction to the research laboratory (SLAC), discusses the origins of the SLAC Archives and History Office, its present-day operations, and the present and future challenges it faces in attempting to preserve an accurate historical record of SLAC's activities.

  5. The SLAC polarized electron source

    SciTech Connect

    Tang, H.; Alley, R.; Frisch, J.

    1995-06-01

    The SLAC polarized electron source employs a photocathode DC high voltage gun with a loadlock and a YAG pumped Ti:sapphire laser system for colliding beam experiments or a flash lamp pumped Ti:sapphire laser for fixed target experiments. It uses a thin, strained GaAs(100) photocathode, and is capable of producing a pulsed beam with a polarization of {ge}80% and a peak current exceeding 10 A. Its operating efficiency has reached 99%. The physics and technology of producing high polarization electron beams from a GaAs photocathode will be reviewed. The prospects of realizing a polarized electron source for future linear colliders will also be discussed.

  6. Linear collider development at SLAC

    SciTech Connect

    Irwin, J.

    1993-08-01

    Linear collider R&D at SLAC comprises work on the present Stanford Linear Collider (SLC) and work toward the next linear collider (NLC). Recent SLC developments are summarized. NLC studies are divided into hardware-based and theoretical. We report on the status of the NLC Test Accelerator (NLCTA) and the final focus test beam (FFTB), describe plans for ASSET, an installation to measure accelerator structure wakefields, and mention IR design developments. Finally we review recent NLC theoretical studies, ending with the author`s view of next linear collider parameter sets.

  7. The SLAC P2 Marx

    SciTech Connect

    Kemp, Mark; Benwell, Andrew; Burkhart, Craig; MacNair, David; Nguyen1, Minh; /SLAC

    2012-07-05

    A proposed high energy physics accelerator, the International Linear Collider, will require greater than five hundred rf stations. Each station is composed of a klystron driven by a modulator. Recently, the SLAC P2 Marx was designated the baseline modulator for the ILC. This paper describes some key features of this modulator and presents recent experimental results. The P2 Marx is presently being transported to another facility for lifetime testing. Here, we will gain understanding of how the Marx performs into a klystron load and gain experience operating the Marx for longer periods. Long term plans include the possibility of using this rf station for L-band technology demonstration at SLAC. While the Marx was designed with the ILC in mind, the topology can be readily applied to several different applications. We are currently evaluating the use of the topology for ESS, CLIC, and upgrades for systems at Fermi National Accelerator Laboratory. Because of the modular nature of the cell and the robustness of the control system, many different combinations of series and parallel operation are possible along with different load currents and pulse shapes.

  8. Wakefields in SLAC linac collimators

    NASA Astrophysics Data System (ADS)

    Novokhatski, A.; Decker, F.-J.; Smith, H.; Sullivan, M.

    2014-12-01

    When a beam travels near collimator jaws, it gets an energy loss and a transverse kick due to the backreaction of the beam field diffracted from the jaws. The effect becomes very important for an intense short bunch when a tight collimation of the background beam halo is required. In the Linac Coherent Light Source at SLAC a collimation system is used to protect the undulators from radiation due to particles in the beam halo. The halo is most likely formed from gun dark current or dark current in some of the accelerating sections. However, collimators are also responsible for the generation of wake fields. The wake field effect from the collimators not only brings an additional energy jitter and change in the trajectory of the beam, but it also rotates the beam on the phase plane, which consequently leads to a degradation of the performance of the Free Electron Laser at the Linac Coherent Light Source. In this paper, we describe a model of the wake field radiation in the SLAC linac collimators. We use the results of a numerical simulation to illustrate the model. Based on the model, we derive simple formulas for the bunch energy loss and the average kick. We also present results from experimental measurements that confirm our model.

  9. An examination of science NCE scores of students of participating and nonparticipating teachers in East Tennessee State University Summer Science Institute

    NASA Astrophysics Data System (ADS)

    Ward, Kevin

    The purpose of this study was to determine the effectiveness of East Tennessee State University's summer science institute training through the effect on mean Normal Curve Equivalent science test scores of students in a Northeast Tennessee school system whose teachers participated in the ETSU summer science institute training. Data analysis were compiled using students' science NCE scores to determine if there were significant differences in scores for those students whose teachers participated in the summer science institutes and those who did not participate. Students' NCE scores were compiled from the middle school setting over a 3-year academic period: 2004-2005, 2005-2006, and 2006-2007. Paired-samples t tests were used to analyze the effectiveness of teacher participation by comparing preparticipation and postparticipation students' science NCE scores for years 3 years. Independent-samples t tests were used to compare students' gender, socioeconomic status (free- and reduced-price meals), and NCE science scores (using 5th grade only) for 2 consecutive years of the study (2005-2006 through 2006-2007). Two analyses were used to determine teachers' participation and the effect on students' NCE science scores among two subgroups: gender and socioeconomic status. For research questions 4 and 5, a mean net gain and NCE raw scores average was performed. The findings from this study indicated significant differences in years 2004-2005 and 2006-2007 favoring students of teachers who participated in the summer science institutes. However, the results from year 2005-2006 showed no significant differences in students' science NCE scores of teachers who participated or did not participate in summer science institutes. In the consecutive year (2005-2006 through 2006-2007) using 5th grade only comparisons, data analyses showed significant differences in students' science NCE scores when performing NCE raw scores comparisons for gender and socioeconomic status. The comparisons for gender showed male students' science NCE scores were higher than were females' science scores. The NCE raw scores comparisons for socioeconomic status showed those students on the meals program had higher science NCE scores than did those students not on the program. There was no significance in students' science NCE scores when using mean net gain scores comparison for gender and socioeconomic status.

  10. A Program Evaluation of a Summer Research Training Institute for American Indian and Alaska Native Health Professionals

    ERIC Educational Resources Information Center

    Zaback, Tosha; Becker, Thomas M.; Dignan, Mark B.; Lambert, William E.

    2010-01-01

    In this article, the authors describe a unique summer program to train American Indian/Alaska Native (AI/AN) health professionals in a variety of health research-related skills, including epidemiology, data management, statistical analysis, program evaluation, cost-benefit analysis, community-based participatory research, grant writing, and…

  11. A Program Evaluation of a Summer Research Training Institute for American Indian and Alaska Native Health Professionals

    ERIC Educational Resources Information Center

    Zaback, Tosha; Becker, Thomas M.; Dignan, Mark B.; Lambert, William E.

    2010-01-01

    In this article, the authors describe a unique summer program to train American Indian/Alaska Native (AI/AN) health professionals in a variety of health research-related skills, including epidemiology, data management, statistical analysis, program evaluation, cost-benefit analysis, community-based participatory research, grant writing, and…

  12. Summer Programs for Educators

    ERIC Educational Resources Information Center

    Curriculum Review, 2009

    2009-01-01

    There are so many great ways to extend oneself professionally--or personally--over the summer. This paper presents several opportunities for summer 2009: (1) The Teacher-to-Teacher Initiative; (2) Courage to Teach; (3) University of South Carolina's Summer Institute in Computer Science; (4) Online Program in Online Teaching; and (5) College Board…

  13. Summer Programs for Educators

    ERIC Educational Resources Information Center

    Curriculum Review, 2009

    2009-01-01

    There are so many great ways to extend oneself professionally--or personally--over the summer. This paper presents several opportunities for summer 2009: (1) The Teacher-to-Teacher Initiative; (2) Courage to Teach; (3) University of South Carolina's Summer Institute in Computer Science; (4) Online Program in Online Teaching; and (5) College Board…

  14. SLAC All Access: Vacuum Microwave Device Department

    ScienceCinema

    Haase, Andy

    2014-06-13

    The Vacuum Microwave Device Department (VMDD) builds the devices that make SLAC's particle accelerators go. These devices, called klystrons, generate intense waves of microwave energy that rocket subatomic particles up to nearly the speed of light.

  15. Intensive Training Academy During Winter Breaks (Winternships) at a Two-Year Hispanic Serving Institution to Prepare STEM Students for Summer Internships

    NASA Astrophysics Data System (ADS)

    Farmer, J. C.; Sim, A. M.; Usher, T. D.

    2014-12-01

    College of the Desert, in partnership with California State University San Bernardino, both Hispanic serving institutions, with the support of a 3-year grant through the NASA Curriculum Improvements Partnership Award for the Integration of Research (CIPAIR) has provided training for community college students, especially those from underrepresented groups, to better prepare them for summer internships opportunities at four-year schools and national laboratories. The Winternships provided an enhanced alternative learning environment for students pursuing degrees in the STEM fields through faculty and peer mentoring in guided undergraduate research activities. All activities associated with undergraduate research were covered including literature searches, hands-on laboratory and field research, collection and analysis of data, culminating in oral and written presentations at College of the Desert and regional student conferences. In addition, students received assistance in searching for summer internships in their area of interest, completing applications, and guidance on follow-up communication with the programs to which they applied. During the funding period, 44 students participated in the Winternship activity in which all submitted a minimum of 3 applications for summer internship opportunities. Results presented will include student success at receiving summer internships, examples of projects completed during the summer and winter activities, and impact on student success. Adaption of this program to other community colleges and into a sophomore level research experience course will be described. This activity has now been funded through the NSF Centers of Research Excellence in Science and Technology (CREST) Program for an additional five years in a partnership with California State University at San Bernardino.

  16. New generation control system at SLAC

    SciTech Connect

    Melen, R.

    1981-03-01

    The proposed SLAC Linear Collider (SLC) project will require an Instrumentation and Control system that provides integrated automatic monitoring and control functions. The present SLAC LINAC Instrumentation and Control system will be totally revamped and it will be expanded to include the support of all of the additional accelerator components that will be required for the whole SLC project. This paper describes the functional operation of the new system.

  17. X-BAND KLYSTRON DEVELOPMENT AT SLAC

    SciTech Connect

    Vlieks, Arnold E.; /SLAC

    2009-08-03

    The development of X-band klystrons at SLAC originated with the idea of building an X-band Linear Collider in the late 1980's. Since then much effort has been expended in developing a reliable X-band Power source capable of delivering >50 MW RF power in pulse widths >1.5 {micro}s. I will report on some of the technical issues and design strategies which have led to the current SLAC klystron designs.

  18. Scientific and Engineering Influences on Industrial Arts. A Summary of Institute Activities (NDEA Summer Inst., College Station, Texas).

    ERIC Educational Resources Information Center

    Texas A and M Univ., College Station. Dept. of Industrial Education.

    These units developed for teacher use consist primarily of a collection of typical experiments or research activities developed by staff and participants of a National Defense Education Act Institute. The institute was designed to broaden the viewpoint of 25 industrial arts teachers with regard to some of the newer scientific and/or engineering…

  19. Evaluation of the Boston-Harvard EPDA Summer Institute in Administration (Harvard, Massachusetts, June 5-16, 1972).

    ERIC Educational Resources Information Center

    Derr, C. Brooklyn

    The Institute was set up to introduce an alternative to current methods of staff supervision. To implement this alternative, members of the Boston Department of Staff Development were trained in effective interpersonal communication, a goal-setting technology to enhance teacher motivation, procedures for setting meaningful and measurable…

  20. The Impact of a Summer Institute on Inservice Early Childhood Teachers' Knowledge of Earth and Space Science Concepts

    ERIC Educational Resources Information Center

    Sackes, Mesut; Trundle, Kathy Cabe; Krissek, Lawrence A.

    2011-01-01

    This study investigated inservice PreK to Grade two teachers' knowledge of some earth and space science concepts before and after a short-term teacher institute. A one-group pre-test-post-test design was used in the current study. Earth science concepts targeted during the professional development included properties of rocks and soils, and the…

  1. Environmental Studies in the Boreal Forest Zone: Summer IPY Institute at Central Boreal Forest Reserve, Fedorovskoe, Tver area, Russia (14-28 August, 2007)

    NASA Astrophysics Data System (ADS)

    Sparrow, E. B.; Kurbatova, Y.; Groisman, P.; Alexeev, V.

    2007-12-01

    The Summer Institute was organized by the International Arctic Research Center (IARC) at the University of Alaska Fairbanks, in collaboration with the A.N. Severtsov Institute for Ecology and Evolution of the Russian Academy of Sciences in Moscow, Russia, and the Central Forest State Nature Biosphere Reserve in Fedorovskoe, Russia. The Institute was arranged as a part of the education/outreach activities of the International Polar Year (IPY) at the University of Alaska and the Northern Eurasia Earth Science Partnership Initiative (NEESPI) and was held in Russia. The Institute provided a unique opportunity for participants to learn about the climate and environment of Northern Eurasia from leading scientists and educators, in a wide spectrum of polar and Earth system science disciplines from meteorology, biology, chemistry, and earth system modeling. Additionally, the Institute attendees observed and participated in the biospheric research activities under the guidance of experienced scientists. During a two-week-interval, the School attendees heard 40 lectures, attended several field trips and participated in three brainstorming Round Table Workshop Sessions devoted to perspectives of the boreal forest zone research and major unresolved problems that it faces. Thirty professors and experts in different areas of climate and biosphere research from Russia, the United States, Germany, Finland, and Japan, shared their expertise in lectures and in round table discussions with the Institute participants. Among the Institute participants there were 31 graduate students/early career scientists from six countries (China, Russia, Estonia, Finland, UK, and the United States) and eight K-12 teachers from Russia. The two groups joined together for several workshop sessions and for the field work components of the Institute. The field work was focused on land-atmosphere interactions and wetland studies in the boreal forest zone. Several field trips in and outside the Forest Reserve were arranged to highlight various aspects of wetland studies and management in the European taiga environment. As part of the GLOBE (Global Learning and Observations to Benefit the Environment) IPY "Seasons and Biomes" project led by Dr. Elena Sparrow, the K-12 teachers were instructed in and practiced existing GLOBE protocols as well as new protocols created specifically for the Seasons and Biomes project to study interannual variability of seasons in their own biomes. These teachers will in turn engage their students in Earth System scientific research as a way of teaching and learning science as well as involving them in the IPY. Support for the Summer Institute was provided by many institutions and organizations from the United States (IARC, NASA, NSF, University of Maryland, GLOBE USA, and Hydrology Science and Services Corporation), Russia (Central Biosphere Forest Reserve, A.N. Severtsov Institute for Ecology and Evolution of the Russian Academy of Sciences, Southern Federal University, Russian Foundation for Basic Research, GLOBE Russia, and non-profit organization "Transparent World"), Japan (National Institute for Environmental Studies), China (Beijing Normal University), Germany (Friedrich-Schiller-University) and the Circumpolar North (University of the Arctic).

  2. PEP-II Large Power Supplies Rebuild Program at SLAC

    SciTech Connect

    Bellomo, P.; Lipari, J.J.; de Lira, A.C.; Rafael, F.S.; /SLAC

    2005-05-17

    Seven large power supplies (LGPS) with output ratings from 72kW to 270kW power PEP-II quad magnets in the electron-positron collider region. These supplies have posed serious maintenance and reliability problems since they were installed in 1997, resulting in loss of accelerator availability. A redesign/rebuild program was undertaken by the SLAC Power Conversion Department. During the 2004 summer shutdown all the control circuits in these supplies were redesigned and replaced. A new PWM control board, programmable logic controller, and touch panel have been installed to improve LGPS reliability, and to make troubleshooting easier. In this paper we present the details of this rebuilding program and results.

  3. S-Band Loads for SLAC Linac

    SciTech Connect

    Krasnykh, A.; Decker, F.-J.; LeClair, R.; /INTA Technologies, Santa Clara

    2012-08-28

    The S-Band loads on the current SLAC linac RF system were designed, in some cases, 40+ years ago to terminate 2-3 MW peak power into a thin layer of coated Kanthal material as the high power absorber [1]. The technology of the load design was based on a flame-sprayed Kanthal wire method onto a base material. During SLAC linac upgrades, the 24 MW peak klystrons were replaced by 5045 klystrons with 65+ MW peak output power. Additionally, SLED cavities were introduced and as a result, the peak power in the current RF setup has increased up to 240 MW peak. The problem of reliable RF peak power termination and RF load lifetime required a careful study and adequate solution. Results of our studies and three designs of S-Band RF load for the present SLAC RF linac system is discussed. These designs are based on the use of low conductivity materials.

  4. Resource Handbook for Teachers and Counselors...A Collection of Ideas, Facts, Resources, and Project Summaries from the PACE Summer Institute (6th, Pendleton, South Carolina, June 15-26, 1992).

    ERIC Educational Resources Information Center

    Robinette, Martha

    This booklet provides a brief overview of ideas, facts, and resources offered during a summer institute hosted by the Partnership for Academic and Career Education (PACE). Section 1 contains summaries of four industry tours taken by institute participants. Section 2 describes two technology demonstrations at Tri-County Technical College. Section 3…

  5. Physics results with polarized electrons at SLAC

    SciTech Connect

    Prescott, C.Y.

    1996-03-01

    Polarized electron beams can play an important role in the dynamics of interactions at high energies. Polarized electron beams at SLAC have been an important part of the physics program since 1970, when they were first proposed for use in testing the spin structure of the proton. Since 1992, the SLAC linear accelerator and the SLC have operated solely with polarized electrons, providing data for tests of QCD in studies of the spin structure of the nucleon and tests of the electroweak sector of the Standard Model. In the following sections, the performance of the source is summarized, and some of the recent results using the polarized beams are discussed.

  6. Computer control of rf at SLAC

    SciTech Connect

    Schwarz, H.D.

    1985-03-01

    The Stanford Linear Accelerator is presently upgraded for the SLAC Linear Collider project. The energy is to be increased from approximately 31 GeV to 50 GeV. Two electron beams and one positron beam are to be accelerated with high demands on the quality of the beams. The beam specifications are shown. To meet these specifications, all parameters influencing the beams have to be under tight control and continuous surveillance. This task is accomplished by a new computer system implemented at SLAC which has, among many other functions, control over rf accelerating fields. 13 refs., 8 figs., 2 tabs.

  7. Formative and summative evaluation efforts for the Teacher Enhancement Institute conducted at the NASA Langley Research Center, summer 1994

    NASA Technical Reports Server (NTRS)

    Carlson, Randal D.

    1994-01-01

    The Teacher Enhancement Institute (TEI) at NASA Langley Research Center was developed in response to Executive Order 12821 which mandates national laboratories to 'assist in the mathematics and science education of our Nation's students, teachers, parents, and the public by establishing programs at their agency to provide for training elementary and secondary school teachers to improve their knowledge of mathematics and science. Such programs, to the maximum extent possible, shall involve partnerships with universities, state and local elementary and secondary school authorities, corporations and community based organizations'. The faculty worked closely with one another and the invited speakers to insure that the sessions supported the objectives. Speakers were informed of the objectives and given guidance concerning form and function for the session. Faculty members monitored sessions to assist speakers and to provide a quality control function. Faculty provided feedback to speakers concerning general objective accomplishment. Participant comments were also provided when applicable. Post TEI surveys asked for specific comments about each TEI session. During the second of the two, two week institutes, daily critiques were provided to the participants for their reflection. This seemed to provide much improved feedback to speakers and faculty because the sessions were fresh in each participant's mind. Between sessions one and two, some changes were made to the program as a result of the formative evaluation process. Those changes, though, were minor in nature and comprised what may be called 'fine tuning' a well conceived and implemented program. After the objectives were written, an assessment instrument was developed to test the accomplishment of the objectives. This instrument was actually two surveys, one given before the TEI and one given after the TEI. In using such a series, it was expected that changes in the participants induced by attendance at TEI may be discovered. Because the institute was limited in time and depth of exposure, attitudinal changes (self-assessment of ability and confidence) were chosen to be surveyed. On the pre-survey, seven general categories of questions were asked. The post-survey repeated three of these categories, providing a pre and post evaluation of the same questions and added a fourth category which asked the participant to self-assess objective accomplishment. The assessment process for TEI was valuable when one looks at the final accomplishments of the TEI. A number of aspects stand out: (1) formative evaluation during project development allowed the goals and objectives to guide the development of the institute; (2) formative evaluation provided positive guidance to presenters in developing and implementing their session; (3) formative evaluation helped presenters to improve or focus their sessions; (4) summative evaluation provided managers a way to gauge the success of the institute; (5) summative evaluation provided a benchmark for future programs to be measured against.

  8. Recent Ground Motion Studies at SLAC

    SciTech Connect

    Seryi, Andrei

    2000-06-28

    Studies of slow ground motion have recently been performed at SLAC using the linac laser alignment system over a period of one month. Two significant effects responsible for the observed motion have been identified, namely tidal forces and variation of external atmospheric pressure. The latter is of particular interest as it may result in misalignments with rather short wavelength.

  9. SLAC All Access: X-ray Microscope

    ScienceCinema

    Nelson, Johanna; Liu, Yijin

    2014-06-13

    SLAC physicists Johanna Nelson and Yijin Liu give a brief overview of the X-ray microscope at the Stanford Synchrotron Radiation Lightsource (SSRL) that is helping improve rechargeable-battery technology by letting researchers peek into the inner workings of batteries as they operate.

  10. SLAC All Access: X-ray Microscope

    SciTech Connect

    Nelson, Johanna; Liu, Yijin

    2012-08-14

    SLAC physicists Johanna Nelson and Yijin Liu give a brief overview of the X-ray microscope at the Stanford Synchrotron Radiation Lightsource (SSRL) that is helping improve rechargeable-battery technology by letting researchers peek into the inner workings of batteries as they operate.

  11. Research at SLAC on future linear colliders

    SciTech Connect

    Wilson, P.B.

    1987-10-01

    This paper discusses current thinking at SLAC concerning the design of a newer collider that will have a luminosity on the order of 10/sup 33/ cm/sup -2/ s/sup -1/ and a beamstrahlung energy loss on the order of .3. 13 refs., 1 fig., 1 tab. (LSP)

  12. Future Proof for Physics: Preserving the Record of SLAC

    ERIC Educational Resources Information Center

    Deken, Jean Marie

    2005-01-01

    This article provides a brief introduction to the Stanford Linear Accelerator Center (SLAC), discusses the origins of the SLAC Archives and History Office, its present-day operations, and the present and future challenges it faces in attempting to preserve an accurate historical record of SLAC's activities. (Contains 21 notes.)

  13. An overview of the SLAC results

    SciTech Connect

    Prescott, C.Y.

    1996-03-01

    The history of nucleon spin-structure measurements goes back to the early days of inelastic electron scattering at SLAC, when Vernon Hughes came with a proposal to accelerate polarized electrons to high energy and to study inelastic scattering from a polarized proton target. The quark model of the proton was new at the time, and the spin-dependent structure functions were an excellent testing ground for that model. The proposal developed into an experiment which became SLAC experiment E80. Subsequent experiments followed those early studies, leading to E130 at SLAC, then EMC at CERN, and a host of later experiments. In 1988 the EMC Collaboration published the first data to reach low x. The asymmetries EMC observed fell below quark model expectations, and the experimentally measured proton sum rule indicated that the spin of the quarks contributed little to the proton spin. The subject of nucleon spin-dependent structure functions was stimulated by this surprising result from EMC. The continuation of the spin-structure studies at SLAC, which have been very active in recent years, was stimulated by the successful development of high-intensity beams of polarized electrons. Table 1 lists the past, present, and planned programs and experiments that grew out of the early work. The rest of the report is divided into the following topics: polarized electrons; polarimetry; the SLAC spectrometers; radiative corrections; the proton measurements; neutron targets; the deuterium and {sup 3}He data; the g{sub 2} structure function; and the 50 GeV upgrade of the SLC.

  14. Liquid Hydrogen Target Experience at SLAC

    SciTech Connect

    Weisend, J.G.; Boyce, R.; Candia, A.; Kaminskas, W.; Mark, J.; Racine, M.; St. Lorant, S.; Weber, T.; Arnold, R.; Bosted, P.; Carr, R.; Gao, J.; Jones, C.E.; McKeown, R.; /Caltech

    2005-08-29

    Liquid hydrogen targets have played a vital role in the physics program at SLAC for the past 40 years. These targets have ranged from small ''beer can'' targets to the 1.5 m long E158 target that was capable of absorbing up to 800 W without any significant density changes. Successful use of these targets has required the development of thin wall designs, liquid hydrogen pumps, remote positioning and alignment systems, safety systems, control and data acquisition systems, cryogenic cooling circuits and heat exchangers. Detailed operating procedures have been created to ensure safety and operational reliability. This paper surveys the evolution of liquid hydrogen targets at SLAC and discusses advances in several of the enabling technologies that made these targets possible.

  15. LLRF System Upgrade for the SLAC Linac

    SciTech Connect

    Hong, Bo; Akre, Ron; Pacak, Vojtech; /SLAC

    2012-07-06

    The Linac Coherent Light Source (LCLS) at SLAC is in full user operation and has met the stability goals for stable lasing. The 250pC bunch can be compressed to below 100fS before passing through an undulator. In a new mode of operation a 20pC bunch is compressed to about 10fS. Experimenters are regularly using this shorter X-ray pulse and getting pristine data. The 10fS bunch has timing jitter on the order of 100fS. Physicists are requesting that the RF system achieve better stability to reduce timing jitter. Drifts in the RF system require longitudinal feedbacks to work over large ranges and errors result in reduced performance of the LCLS. A new RF system is being designed to help diagnose and reduce jitter and drift in the SLAC linac.

  16. A New Control Room for SLAC Accelerators

    SciTech Connect

    Erickson, Roger; Guerra, E.; Stanek, M.; Hoover, Z.Van; Warren, J.; /SLAC

    2012-06-04

    We are planning to construct a new control room at SLAC to unify and improve the operation of the LCLS, SPEAR3, and FACET accelerator facilities, and to provide the space and flexibility needed to support the LCLS-II and proposed new test beam facilities. The existing control rooms for the linac and SPEAR3 have been upgraded in various ways over the last decade, but their basic features have remained unchanged. We propose to build a larger modern Accelerator Control Room (ACR) in the new Research Support Building (RSB) which is currently under construction at SLAC. Shifting the center of control for the accelerator facilities entails both technical and administrative challenges. In this paper, we describe the history, concept, and status of this project.

  17. A Look Inside SLAC's Battery Lab

    SciTech Connect

    Wei Seh, Zhi

    2014-07-17

    In this video, Stanford materials science and engineering graduate student Zhi Wei Seh shows how he prepares battery materials in SLAC's energy storage laboratory, assembles dime-sized prototype "coin cells" and then tests them to see how many charge-discharge cycles they can endure without losing their ability to hold a charge. Results to date have already set records: After 1,000 cycles, they retain 70 percent of their original charge.

  18. A Look Inside SLAC's Battery Lab

    ScienceCinema

    Wei Seh, Zhi

    2014-07-21

    In this video, Stanford materials science and engineering graduate student Zhi Wei Seh shows how he prepares battery materials in SLAC's energy storage laboratory, assembles dime-sized prototype "coin cells" and then tests them to see how many charge-discharge cycles they can endure without losing their ability to hold a charge. Results to date have already set records: After 1,000 cycles, they retain 70 percent of their original charge.

  19. A Summer Enrichment and Reinforcement Program in the School of Veterinary Medicine at Tuskegee Institute, Alabama. A Program Designed to Respond to a Challenge: Increased Minority and Disadvantaged Representation in Veterinary Medicine.

    ERIC Educational Resources Information Center

    Poole, Georgia C.; Adams, Eugene W.

    This report describes a pre-entry summer program at the School of Veterinary Medicine at Tuskegee Institute, Alabama, designed to develop attitudinal readiness and coqnitive abilities of students who face a high risk of attrition because of inadequate learning skills. The program, which runs for eight weeks, consists of three phases: 1) phase one,…

  20. COMPUTER-AIDED DRAFTING AND DESIGN, A THREE-WEEK SUMMER INSTITUTE TRAINING PROGRAM (MIAMI-DADE JUNIOR COLLEGE, MIAMI, FLORIDA, JULY 10, 1967 - JULY 28, 1967). FINAL REPORT.

    ERIC Educational Resources Information Center

    MORPHONIOS, ALEX G.

    THIRTY-SIX INSTRUCTORS, SUPERVISORS, AND DEPARTMENT CHAIRMEN IN AREAS OF DRAFTING, ENGINEERING, MANUFACTURING, AND COMPUTER TECHNOLOGY AT JUNIOR COLLEGES, TECHNICAL, AND AREA VOCATIONAL SCHOOLS IN 20 STATES ATTENDED A 3-WEEK SUMMER INSTITUTE TRAINING PROGRAM ON COMPUTER-AIDED DRAFTING AND DESIGN. EXPERIENCE IN PROGRAMING THE IBM SYSTEM 1620 WITH…

  1. Vistazos Intimos De Puebla; Una Compilacion De Informes Individuales Preparados Por Los Participantes Del Instituto De Verano (NDEA) (Close-ups on Puebla; A Compilation of Individual Reports Prepared by the Participants of the NDEA Summer Institute).

    ERIC Educational Resources Information Center

    Wichita State Univ., KS.

    The individual and committee reports on the sociology of Puebla, Mexico, which are collected here, were written by participants in an NDEA Summer Institute program of the University of Wichita, Kansas. The underlying motives of the program, described in the preface, were to provide participants with real language experience and a chance to…

  2. The SLAC Comparator for the Calibration of Digital Leveling Equipment

    SciTech Connect

    Gassner, G.L.; Ruland, R.E.; /SLAC

    2006-11-07

    At SLAC digital levels are used for precise leveling, both for setting out and monitoring. A very high precision of 30 {micro}m is required, which can only be achieved by regularly calibrating the leveling equipment. The calibration facility is also used for detailed investigations to refine the SLAC leveling procedure. In this paper the setup of the SLAC vertical comparator is described. In order to also perform traditional staff calibration a CCD camera was integrated into the SLAC comparator. Finally an overview of further investigations of our leveling equipment is presented.

  3. SLAC-Linac-Collider (SLC) Project

    SciTech Connect

    Wiedemann, H.

    1981-02-01

    The proposed SLAC Linear Collider Project (SLC) and its features are described in this paper. In times of ever increasing costs for energy the electron storage ring principle is about to reach its practical limit. A new class of colliding beam beam facilities, the Linear Colliders, are getting more and more attractive and affordable at very high center-of-mass energies. The SLC is designed to be a poineer of this new class of colliding beam facilities and at the same time will serve as a valuable tool to explore the high energy physics at the level of 100 GeV in the center-of-mass system.

  4. X-ray Astronomy at SLAC

    SciTech Connect

    Saz Parkinson, P

    2005-04-06

    The USA (Unconventional Stellar Aspect) experiment was launched in February of 1999 and operated for approximately 18 months. Group K at SLAC (Stanford Linear Accelerator Center) participated in this experiment along with the Naval Research Laboratory (NRL). The author discusses the USA experiment and the data accumulated, along with some of the results obtained from the observations of such objects as the extragalactic BL Lac object 1ES1959+65, the Black Hole Candidate (BHC) XTE J1118+480, and the eccentric X-ray binary system Circinus X-1.

  5. Survey and Alignment of SLAC's B Factory

    SciTech Connect

    Pietryka, Matthew J.; Gaydosh, Michael L.; /SLAC

    2011-09-08

    The survey and alignment of SLAC's B-factory injector and high energy ring will be complete in March 1997. Modern digital electronic surveying tools are contributing to new, efficient alignment procedures. A laser tracker was used to fiducialize almost 300 quadrupole magnets. Digital levels were used to pre-set base plate elevations. Theodolites with very accurate co-axial distance meters were used for everything from layout to 3D magnet positioning to network surveys, all in free stationing mode. A number of procedures and measurement results are outlined.

  6. Network resource and applications management at SLAC

    SciTech Connect

    Logg, C.A.; Cottrell, R.L.A.

    1996-02-01

    The Stanford Linear Accelerator Center (SLAC) has a heterogeneous networked computing environment with a variety of transmission media, protocols, equipment from multiple vendors, Local Areas Network (LAN) and Wide Area Network (WAN) connections, workstations, servers, legacy mainframes, operating systems, network services and applications, and users of various skill levels. New technologies are continually being deployed as they become available. All of these components work together (most of the time) but result in a complex distributed computing environment (henceforth referred to as the system) which requires automated monitoring and management for the maintenance of high quality performance with limited personnel and budgets. There is no Network Management Station (NMS) product which comes close to doing the job of monitoring and managing the LAN and WAN for SLAC. However, by making use of Ping, Simple Network Management Protocol (SNMP) and its Management Information Bases (MIBs), as well as network applications (trace-route, File Transfer Protocol (FTP), Remote Procedure Calls (RPCs), Remote Shell (rsh), et.al.), an NMS (Netview for AIX), and the accounting and monitoring facilities provided by the server operating systems, the challenge is surmountable.

  7. SLAC low emittance accelerator test facility

    SciTech Connect

    Loew, G.A.; Miller, R.H.; Sinclair, C.K.

    1986-05-01

    SLAC is proposing to build a new Accelerator Test Facility (ATF) capable of producing a 50 MeV electron beam with an extremely low geometric tranverse emittance (1.5 x 10/sup -10/ rad.m) for the purpose of testing new methods of acceleration. The low emittance will be achieved by assembling a linear accelerator using one standard SLAC three-meter section and a 400 kV electron gun with a very small photocathode (40 microns in diameter). The photocathode will be illuminated from the back by short bursts (on the order of 6 ps) of visible laser light which will produce bunches of about 10/sup 5/ electrons. Higher currents could be obtained by illuminating the cathode from the front. The gun will be mounted directly against the accelerator section. Calculations show that in the absence of an rf buncher, injection of these 400 keV small radius electron bunches roughly 30/sup 0/ ahead of crest produces negligible transverse emittance growth due to radial rf forces. Acceleration of the electrons up to 50 MeV followed by collimation, energy slits and focusing will provide a 3.2 mm long waist of under 1.5 ..mu..m in diameter where laser acceleration and other techniques can be tested.

  8. Phase Noise Measurements in SLAC Linac

    SciTech Connect

    Schaffold, K.

    2004-09-03

    The Linac Coherent Light Source that is under development at SLAC will become the world's first x-ray free electron laser. This laser will enable revolutionary studies in many different areas of science. Before the laser goes into operation at SLAC, phase noise measurements need to be taken to determine whether the existing linac structure will be able to run the LCLS. The phase noise of a system is translated into timing jitter, and the LCLS can only tolerate a certain amount of jitter. The measurements taken on the linac were higher than expected and we hypothesized that our measuring devices might have been the source of high noise readings. After designing new low noise amplifiers to amplify the signal, the phase noise and timing jitter levels went down. We were able to target the PEP phase shifter as the component of the linac system that was adding a lot of noise. More work needs to be done to further reduce the phase noise and timing jitter levels.

  9. Binary rf pulse compression experiment at SLAC

    SciTech Connect

    Lavine, T.L.; Spalek, G.; Farkas, Z.D.; Menegat, A.; Miller, R.H.; Nantista, C.; Wilson, P.B.

    1990-06-01

    Using rf pulse compression it will be possible to boost the 50- to 100-MW output expected from high-power microwave tubes operating in the 10- to 20-GHz frequency range, to the 300- to 1000-MW level required by the next generation of high-gradient linacs for linear for linear colliders. A high-power X-band three-stage binary rf pulse compressor has been implemented and operated at the Stanford Linear Accelerator Center (SLAC). In each of three successive stages, the rf pulse-length is compressed by half, and the peak power is approximately doubled. The experimental results presented here have been obtained at low-power (1-kW) and high-power (15-MW) input levels in initial testing with a TWT and a klystron. Rf pulses initially 770 nsec long have been compressed to 60 nsec. Peak power gains of 1.8 per stage, and 5.5 for three stages, have been measured. This corresponds to a peak power compression efficiency of about 90% per stage, or about 70% for three stages, consistent with the individual component losses. The principle of operation of a binary pulse compressor (BPC) is described in detail elsewhere. We recently have implemented and operated at SLAC a high-power (high-vacuum) three-stage X-band BPC. First results from the high-power three-stage BPC experiment are reported here.

  10. Wake fields in SLAC Linac Collimators

    SciTech Connect

    Novokhatski, Alexander; Decker, F. -J.; Smith, H.; Sullivan, M.

    2014-12-02

    When a beam travels near collimator jaws, it gets an energy loss and a transverse kick due to the backreaction of the beam field diffracted from the jaws. The effect becomes very important for an intense short bunch when a tight collimation of the background beam halo is required. In the Linac Coherent Light Source at SLAC a collimation system is used to protect the undulators from radiation due to particles in the beam halo. The halo is most likely formed from gun dark current or dark current in some of the accelerating sections. However, collimators are also responsible for the generation of wake fields. The wake field effect from the collimators not only brings an additional energy jitter and change in the trajectory of the beam, but it also rotates the beam on the phase plane, which consequently leads to a degradation of the performance of the Free Electron Laser at the Linac Coherent Light Source. In this paper, we describe a model of the wake field radiation in the SLAC linac collimators. We use the results of a numerical simulation to illustrate the model. Based on the model, we derive simple formulas for the bunch energy loss and the average kick. In addition, we also present results from experimental measurements that confirm our model.

  11. SLAC three-body partial wave analysis system

    SciTech Connect

    Aston, D.; Lasinski, T.A.; Sinervo, P.K.

    1985-10-01

    We present a heuristic description of the SLAC-LBL three-meson partial wave model, and describe how we have implemented it at SLAC. The discussion details the assumptions of the model and the analysis, and emphasizes the methods we have used to prepare and fit the data. 28 refs., 12 figs., 1 tab.

  12. A Prototype Two-tier Mentoring Program for Undergraduate Summer Interns from Minority-Serving Institutions at the University of Alaska Fairbanks

    NASA Astrophysics Data System (ADS)

    Gens, R.; Prakash, A.; Ozbay, G.; Sriharan, S.; Balazs, M. S.; Chittambakkam, A.; Starkenburg, D. P.; Waigl, C.; Cook, S.; Ferguson, A.; Foster, K.; Jones, E.; Kluge, A.; Stilson, K.

    2013-12-01

    The University of Alaska Fairbanks (UAF) is partnering with Delaware State University, Virginia State University, Elizabeth City State University, Bethune-Cookman University, and Morgan State University on a U.S. Department of Agriculture - National Institute for Food and Agriculture funded grant for ';Enhancing Geographic Information System Education and Delivery through Collaboration: Curricula Design, Faculty, Staff, and Student Training and Development, and Extension Services'. As a part of this grant, in summer 2013, UAF hosted a week long workshop followed by an intense two week undergraduate internship program. Six undergraduate students from partnering Universities worked with UAF graduate students as their direct mentors. This cohort of undergraduate mentees and graduate student mentors were in-turn counseled by the two UAF principal investigators who served as ';super-mentors'. The role of each person in the two-tier mentoring system was well defined. The super-mentors ensured that there was consistency in the way the internship was setup and resources were allocated. They also ensured that there were no technical glitches in the research projects and that there was healthy communication and interaction among participants. Mentors worked with the mentees ahead of time in outlining a project that aligned with the mentees research interest, provided basic reading material to the interns to get oriented, prepared the datasets required to start the project, and guided the undergraduates throughout the internship. Undergraduates gained hands-on experience in geospatial data collection and application of tools in their projects related to mapping geomorphology, landcover, geothermal sites, fires, and meteorological conditions. Further, they shared their research results and experiences with a broad university-wide audience at the end of the internship period. All participants met at lunch-time for a daily science talk from external speakers. The program offered a rich and gratifying experience for all participants. Undergraduate students got a sneak-peek into a career in higher academia before stepping into graduate school. Graduate students gained mentoring experience, and also learned the importance of good time management and setting clear expectations.

  13. Cerenkov ring imaging detector development at SLAC

    SciTech Connect

    Williams, S.H.

    1984-06-01

    The imaging of Cerenkov light on to photosensitive detectors promises to be a powerful technique for identifying particles in colliding beam spectrometers. Toward this end two and three dimensional imaging photon detectors are being developed at SLAC. The present techniques involve photon conversion using easily ionized exotic chemicals like tetrakisdimethyl-amino-ethylene (TMAE) in a drift and amplifying gas mixture of methane and isobutane. Single photoelectrons from Cerenkov light are currently being drifted 20 cm and a new device under study will be used to study drifting up to 80 cm along a magnetic field. A short description of a large device currently being designed for the SLD spectrometer at the Stanford Linear Collider will be given.

  14. Accelerator Structure Bead Pull Measurement at SLAC

    SciTech Connect

    Lewandowski, J.R.; Bowden, G.; Miller, R.H.; Wang, J.W.; /SLAC

    2005-05-13

    Microwave measurement and tuning of accelerator structures are important issues for the current and next generation of high energy physics machines. Application of these measurements both before and after high power processing can reveal information about the structure but may be misinterpreted if measurement conditions are not carefully controlled. For this reason extensive studies to characterize the microwave measurements have been made at SLAC. For the bead pull a reproducible measurement of less than 1 degree of phase accuracy in total phase drift is needed in order to resolve issues such as phase changes due to structure damage during high power testing. Factors contributing to measurement errors include temperature drift, mechanical vibration, and limitations of measurement equipment such as the network analyzer. Results of this continuing effort will be presented.

  15. Pulsed rf superconductivity program at SLAC

    SciTech Connect

    Campisi, I.E.; Farkas, Z.D.

    1984-08-01

    Recent tests performed at SLAC on superconducting TM/sub 010/ caavities using short rf pulses (less than or equal to 2.5 ..mu..s) have established that at the cavity surface magnetic fields can be reached in the vicinity of the theoretical critical fields without an appreciable increase in average losses. Tests on niobium and lead cavities are reported. The pulse method seems to be best suited to study peak field properties of superconductors in the microwave band, without the limitations imposed by defects. The short pulses also seem to be more effective in decreasing the causes of field emission by rf processing. Applications of the pulsed rf superconductivity to high-gradient linear accelerators are also possible.

  16. Microprocessors in physics experiments at SLAC

    SciTech Connect

    Rochester, L.S.

    1981-04-01

    The increasing size and complexity of high energy physics experiments is changing the way data are collected. To implement a trigger or event filter requires complex logic which may have to be modified as the experiment proceeds. Simply to monitor a detector, large amounts of data must be processed on line. The use of microprocessors or other programmable devices can help to achieve these ends flexibly and economically. At SLAC, a number of microprocessor-based systems have been built and are in use in experimental setups, and others are now being developed. This talk is a review of existing systems and their use in experiments, and of developments in progress and future plans.

  17. 100 MW klystron development at SLAC

    SciTech Connect

    Vlieks, A.E.; Callin, R.S.; Caryotakis, G.; Fant, K.S.; Fowkes, W.R.; Lee, T.G.; Wright, E.L.

    1991-05-01

    A klystron designed to operate at 11.4 GHz and 440 kV is presently SLAC's strongest rf power source candidate for the Next Linear Collider. It is expected to provide 100 MW of rf power with a pulse width of 1 microsecond. Many of the conventional tube technologies are being pushed to their limits. High electron beam power densities, rf electric gradients in cavity gaps and stresses on the ceramic rf output windows are among the most severe problems to be dealt with. This paper describes progress in the development of this device including results from single and double gap output cavities and various styles of rf output windows. 6 refs., 3 figs., 1 tab.

  18. Parameters of the SLAC Next Linear Collider

    SciTech Connect

    Raubenheimer, T.; Adolphsen, C.; Burke, D.

    1995-05-01

    In this paper, the authors present the parameters and layout of the Next Linear Collider (NLC). The NLC is the SLAC design of a future linear collider using X-band RF technology in the main linacs. The collider would have an initial center-of-mass energy of 0.5 TeV which would be upgraded to 1 TeV and then 1.5 TeV in two stages. The design luminosity is > 5 {times} 10{sup 33} cm{sup {minus}2} sec {sup {minus}1} at 0.5 TeV and > 10{sup 34} cm{sup {minus}2} sec{sup {minus}1} at 1.0 and 1.5 TeV. They briefly describe the components of the collider and the proposed energy upgrade scenario.

  19. Lattice Design for ERL Options at SLAC

    SciTech Connect

    Nosochkov, Yuri; Cai, Yunhai; Huang, Xiaobiao; Wang, Min-Huey; /SLAC

    2011-06-02

    SLAC is investigating long-range options for building a high performance light source machine while reusing the existing linac and PEP-II tunnels. One previously studied option is the PEP-X low emittance storage ring. The alternative option is based on a superconducting Energy Recovery Linac (ERL) and the PEP-X design. The ERL advantages are the low beam emittance, short bunch length and small energy spread leading to better qualities of the X-ray beams. Two ERL configurations differed by the location of the linac have been studied. Details of the lattice design and the results of beam transport simulations with the coherent synchrotron radiation effects are presented.

  20. Resonant Kicker System Development at SLAC

    SciTech Connect

    Beukers, Tony; Krzaszczak, John; Larrus, Marc; Lira, Antonio de; /SLAC

    2009-04-27

    The design and installation of the Linear Coherent Light Source [1] at SLAC National Accelerator Laboratory has included the development of a kicker system for selective beam bunch dumping. The kicker is based on an LC resonant topology formed by the 50 uF energy storage capacitor and the 64 uH air core magnet load which has a sinusoidal pulse period of 400us. The maximum magnet current is 500 A. The circuit is weakly damped, allowing most of the magnet energy to be recovered in the energy storage capacitor. The kicker runs at a repetition rate of 120Hz. A PLC-based control system provides remote control and monitoring of the kicker via EPICS protocol. Fast timing and interlock signals are converted by discrete peak-detect and sample-hold circuits into DC signals that can be processed by the PLC. The design and experimental characterization of the system are presented.

  1. SLAC pulsed x-ray facility

    SciTech Connect

    Ipe, N.E.; McCall, R.C.; Baker, E.D.

    1986-05-01

    The Stanford Linear Accelerator Center (SLAC) operates a high energy (up to 33 GeV) linear accelerator delivering pulses up to a few microseconds wide. The pulsed nature of the electron beam creates problems in the detection and measurement of radiation both from the accelerator beam and the klystrons that provide the rf power for the accelerator. Hence, a pulsed x-ray facility has been built at SLAC mainly for the purpose of testing the response of different radiation detection instruments to pulsed radiation fields. The x-ray tube consists of an electron gun with a control grid. This provides a stream of pulsed electrons that can be accelerated towards a confined target-window. The window is made up of aluminium 0.051 cm (20 mils) thick, plated on the vacuum side with a layer of gold 0.0006 cm (1/4 mil) thick. The frequency of electron pulses can be varied by an internal pulser from 60 to 360 pulses per second with pulse widths of 360 ns to 5 ..mu..s. The pulse amplitude can be varied over a wide range of currents. An external pulser can be used to obtain other frequencies or special pulse shapes. The voltage across the gun can be varied from 0 to 100 kV. The major part of the x-ray tube is enclosed in a large walk-in-cabinet made of 1.9 cm (3/4 in) plywood and lined with 0.32 cm (1/8 in) lead to make a very versatile facility. 3 refs., 5 figs.

  2. Calculation of Radiation Damage in SLAC Targets

    SciTech Connect

    Wirth, B D; Monasterio, P; Stein, W

    2008-04-03

    Ti-6Al-4V alloys are being considered as a positron producing target in the Next Linear Collider, with an incident photon beam and operating temperatures between room temperature and 300 C. Calculations of displacement damage in Ti-6Al-4V alloys have been performed by combining high-energy particle FLUKA simulations with SPECTER calculations of the displacement cross section from the resulting energy-dependent neutron flux plus the displacements calculated from the Lindhard model from the resulting energy-dependent ion flux. The radiation damage calculations have investigated two cases, namely the damage produced in a Ti-6Al-4V SLAC positron target where the irradiation source is a photon beam with energies between 5 and 11 MeV. As well, the radiation damage dose in displacements per atom, dpa, has been calculated for a mono-energetic 196 MeV proton irradiation experiment performed at Brookhaven National Laboratory (BLIP experiment). The calculated damage rate is 0.8 dpa/year for the Ti-6Al-4V SLAC photon irradiation target, and a total damage exposure of 0.06 dpa in the BLIP irradiation experiment. In both cases, the displacements are predominantly ({approx}80%) produced by recoiling ions (atomic nuclei) from photo-nuclear collisions or proton-nuclear collisions, respectively. Approximately 25% of the displacement damage results from the neutrons in both cases. Irradiation effects studies in titanium alloys have shown substantial increases in the yield and ultimate strength of up to 500 MPa and a corresponding decrease in uniform ductility for neutron and high energy proton irradiation at temperatures between 40 and 300 C. Although the data is limited, there is an indication that the strength increases will saturate by doses on the order of a few dpa. Microstructural investigations indicate that the dominant features responsible for the strength increases were dense precipitation of a {beta} (body-centered cubic) phase precipitate along with a high number density of dislocation loops.

  3. Summer Astronomy

    ERIC Educational Resources Information Center

    Riddle, Bob

    2004-01-01

    This brief article describes what can be expected of the skies in the summer of 2004 with quite a few celestial thrills to anticipate. In addition to the planet viewing opportunities, there is a very rare Venus transit of the Sun and the annual Perseid meteor shower. The 2004 summer also marks both an end and beginning for the Cassini/Huygens…

  4. Summer Astronomy

    ERIC Educational Resources Information Center

    Riddle, Bob

    2004-01-01

    This brief article describes what can be expected of the skies in the summer of 2004 with quite a few celestial thrills to anticipate. In addition to the planet viewing opportunities, there is a very rare Venus transit of the Sun and the annual Perseid meteor shower. The 2004 summer also marks both an end and beginning for the Cassini/Huygens…

  5. Experimental beam dynamics in the SLC (SLAC Linear Collier) linac

    SciTech Connect

    Steeman, J.T.; Campisi, I.E.; Herrmannsfeldt, W.; Lee, M.

    1987-01-01

    The component installation for the upgrade of the three-kilometer linac for the SLAC Linear Collider (SLC) was completed in late summer 1986. The system status and measurements of beam properties made during commissioning are described in this paper. In summary, a low-emittance electron beam from a damping ring has been accelerated through the linac and injected into the north SLC Arc with negligible loss. The maximum bunch intensity is 2.9 x 10 electrons/pulse. A peak particle energy of 53 GeV has been reached. Operation at 47 GeV is now routine. The energy and energy spectrum of the electron beam can be rapidly measured nondestructively at high energy. These signals will be used in a fast feedback system nearing completion. The electron beam can be centered in the accelerator to about 200 m rms. Slow feedback of the injection position and angle into the linac and injection into the north Arc are operational. Longitudinal and transverse wakefields have been measured and appear to be near expectations. Transverse position measurements at the end of the linac show a 120 m horizontal and a 30 m vertical (rms) jitter from pulse to pulse. The spot shape, including the transverse tails, also shows some jitter. The transverse position and shape fluctuations have several sources involving launch instabilities, chromatic effects, RF deflections and lattice mismatches. Continued improvements are expected. These parameter jitters would not preclude collisions. The measured invariant transverse emittances of the beam at 47 GeV are 2 x 10 V rm vertically and 12-25 x 10 V rm horizontally at 1 x 10 e . The horizontal emittance increases with beam intensity. Damped positrons have been injected into the linac, and trajectory correction is underway.

  6. Education Professions Development Act Summer Institute for Trade and Industrial Teachers of the Disadvantaged. Final Report, June 14-July 2, 1971.

    ERIC Educational Resources Information Center

    South Carolina State Coll., Orangeburg.

    OBJECTIVES: An outline of program proceedings at South Carolina State College for trade and industrial teachers of the disadvantaged. DURATION: The summer of 1971. AUDIENCE: Twenty-three trade and industrial teachers were selected from target counties in South Carolina having a high percentage of disadvantaged youth. CURRICULUM: Teaching skills in…

  7. Reverse Transfer Project, Summer 1986.

    ERIC Educational Resources Information Center

    Reis, Elizabeth

    In 1986, a Reverse Transfer Project was initiated at Moraine Valley Community College (MVCC) in order to promote the summer school attendance at MVCC of "reverse transfer" students (i.e., students who attended another institution during the regular academic year). A mailing, containing a cover letter, informational brochure, summer catalog, and…

  8. Summer School in Deep Ecology.

    ERIC Educational Resources Information Center

    Macmillan, Catherine Hume

    1995-01-01

    Describes one teacher's experiences at the Institute for Deep Ecology Education (IDEE) Summer School in Applied Deep Ecology. Reviews the program offered and the focus on interactive, experiential activities. (LZ)

  9. Wide-band cable systems at SLAC

    SciTech Connect

    Struven, W.

    1983-01-01

    SLAC's first cable TV system was installed in 1979 to remotely monitor a narrow pulse which was generated in the west end of the klystron gallery. When Stanford Linear Collider (SLC) experimental work started at the west end of the accelerator, the original 1979 cable was upgraded to a bidirectional system so that 2 MBaud point-to-point data and several video and 9600 baud channels could be transmitted. The implementation of the SLC requires a complete upgrading of the accelerator control system. The system is based on a distributed processing configuration using a PDP11/780 VAX in the Main Control Center (MCC) and Intel single-board computers in a multibus configuration along the accelerator. The high-speed data linking is supplied by a 1 MBaud Time Division Multiple Access (TDMA) Network. The same cable is used to provide video, low-speed data, voice and high-speed point-to-point data services. The transmission system will utilize a wideband midsplit cable facility to collect and distribute signals to all parts of the network.

  10. Parton distributions from SMC and SLAC data

    SciTech Connect

    Ramsey, G.P. |; Goshtasbpour, M. |

    1996-01-04

    We have extracted spin-weighted parton distributions in a proton from recent data at CERN and SLAC. The valence, sea quark and Antiquark spin-weighted distributions are determined separately. The data are all consistent with a small to moderate polarized gluon distribution, so that the anomaly term is not significant in the determination of the constituent contributions to the spin of the proton. We have analyzed the consistency of the results obtained from various sets of data and the Biorken sum rule. Although all data are consistent with the sum rule, the polarized distributions from different experiments vary, even with higher order QCD corrections taken into account. Results split into two models, one set implying a large polarized strange sea which violates the positivity bound, and the other set yielding a smaller polarized strange sea. Only further experiments which extract information about the polarized sea will reconcile these differences. We suggest specific experiments which can be performed to determine the size of the polarized sea and gluons.

  11. RF Gun Photocathode Research at SLAC

    SciTech Connect

    Jongewaard, E.; Akre, R.; Brachmann, A.; Corbett, J.; Gilevich, S.; Grouev, K.; Hering, P.; P.Krejcik,; Lewandowski, J.; Loos, H.; Montagne, T.; Sheppard, J.C.; Stefan, P.; Vlieks, A.; Weathersby, S.; Zhou, F.; /SLAC

    2012-05-16

    LCLS is presently operating with a third copper photocathode in the original rf gun, with a quantum efficiency (QE) of {approx}1 x 10{sup -4} and projected emittance {gamma}{var_epsilon}{sub x,y} = 0.45 {micro}m at 250 pC bunch charge. The spare LCLS gun is installed in the SLAC Accelerator Structure Test Area (ASTA), fully processed to high rf power. As part of a wider photocathode R and D program, a UV laser system and additional gun diagnostics are being installed at ASTA to measure QE, QE lifetime, and electron beam emittance under a variety of operating conditions. The near-term goals are to test and verify the spare photocathode production/installation sequence, including transfer from the final holding chamber to the rf gun. Mid- and longer-term goals include development of a rigorous understanding of plasma and laser-assisted surface conditioning and investigation of new, high-QE photocathode materials. In parallel, an x-ray photoemission spectroscopy station is nearing completion, to analyze Cu photocathode surface chemistry. In this paper we review the status and anticipated operating parameters of ASTA and the spectroscopy test chamber.

  12. The LCLS-II Project at SLAC

    NASA Astrophysics Data System (ADS)

    Schultz, David

    2015-04-01

    The Linac Coherent Light Source-II (LCLS-II) Project will add capability and capacity to the LCLS facility. The design of the Project presents interesting challenges. The Project will construct a 4 GeV CW superconducting (SC) linac in the first kilometer of the existing SLAC linac tunnel and a substantial cryogenics plant to supply it. Two new variable gap undulators will be placed in the existing LCLS undulator hall, one optimized as a soft x-ray (200-1,300 eV) source will receive electrons from the new SC linac, the other replacing the existing LCLS undulator will receive electrons either simultaneously from the new SC linac (providing 1-5 keV photons) or the 120 Hz copper linac presently used by LCLS (providing 1-25 keV x-rays). The bright x-ray beams are conditioned before they are delivered to experimental stations. First light from the new facility is expected late in 2019. Work supported by US DOE Contract DE-AC02-766SF00515.

  13. Search milli-charged particles at SLAC

    SciTech Connect

    Langeveld, W.G.J.

    1997-01-01

    Particles with electric charge q {triple_bond} Qe {le} 10{sup -3} e and masses in the range 1-1000 MeV/c{sup 2} are not excluded by present experiments or by astrophysical or cosmological arguments. A beam dump experiment uniquely suited to the detection of such {open_quotes}milli-charged{close_quotes} particles has been carried out at SLAC, utilizing the short-duration pulses of the SLC electron beam to establish a tight coincidence window for the signal. The detector, a large scintillation counter sensitive to very small energy depositions, provided much greater sensitivity than previous searches. Analysis of the data leads to the exclusion of a substantial portion of the charge-mass plane. In this report, a preliminary mass-dependent upper limit is presented for the charge of milli-charged particles, ranging from Q = 1.7 x 10{sup -5} at milli-charged particle mass 0.1 MeV/c{sup 2} to Q = 9.5 x 10{sup -4} at 100 MeV/c{sup 2}.

  14. Anecdotal Abstracts From an Environment for Learning, Written at the 1966 and 1967 Summer Institutes of Technology for Children (Marlton, New Jersey).

    ERIC Educational Resources Information Center

    1967

    Abstracts which reflect a cross section of the anecdotal records made during two-6-week inservice teacher education institutes are presented. The institutes were designed to help elementary teachers combine technological activities with regular academic lessons for children in kindergarten through grade 6. Each of 38 teachers observed one child,…

  15. Progress report on the SLAC Linear Collider

    SciTech Connect

    Kozanecki, W.

    1987-11-01

    In this paper we report on the status of the SLAC Linear Collider (SLC), the prototype of a new generation of colliding beam accelerators. This novel type of machine holds the potential of extending electron-positron colliding beam studies to center-of-mass (c.m.) energies far in excess of what is economically achievable with colliding beam storage rings. If the technical challenges posed by linear colliders are solvable at a reasonable cost, this new approach would provide an attractive alternative to electron-positron rings, where, because of rapidly rising synchrotron radiation losses, the cost and size of the ring increases with the square of the c.m. energy. In addition to its role as a test vehicle for the linear collider principle, the SLC aims at providing an abundant source of Z/sup 0/ decays to high energy physics experiments. Accordingly, two major detectors, the upgraded Mark II, now installed on the SLC beam line, and the state-of-the-art SLD, currently under construction, are preparing to probe the Standard Model at the Z/sup 0/ pole. The SLC project was originally funded in 1983. Since the completion of construction, we have been commissioning the machine to bring it up to a performance level adequate for starting the high energy physics program. In the remainder of this paper, we will discuss the status, problems and performance of the major subsystems of the SLC. We will conclude with a brief outline of the physics program, and of the planned enhancements to the capabilities of the machine. 26 refs., 7 figs.

  16. Center for Computing Research Summer Research Proceedings 2015.

    SciTech Connect

    Bradley, Andrew Michael; Parks, Michael L.

    2015-12-18

    The Center for Computing Research (CCR) at Sandia National Laboratories organizes a summer student program each summer, in coordination with the Computer Science Research Institute (CSRI) and Cyber Engineering Research Institute (CERI).

  17. Summer Opportunities.

    ERIC Educational Resources Information Center

    Winds of Change, 2002

    2002-01-01

    This directory describes 24 summer internships and cooperative education programs for college students, especially in the science, engineering, and technology fields. A few programs are specifically for American Indians, minority groups, or college-bound high school students. Program entries include a brief description, skills and background…

  18. Summer Programs.

    ERIC Educational Resources Information Center

    Toussaint, Isabella H.

    An intensive 6-week summer readiness program held in the Beaver Area School District, Beaver, Pennsylvania, developed linguistic facility among 15 preschool children. Daily activities included discussion, picture study, creative arts, field trips, developing experience charts, and other nonlanguage arts activities. A combined experiential,…

  19. Summer Skies

    ERIC Educational Resources Information Center

    Science Scope, 2005

    2005-01-01

    During the evening hours of the summer of 2005, there will be numerous opportunities to observe several of the brighter planets as they move along their respective orbits, overtaking and passing one another, performing a planetary dance with the choreography set to orbital speeds. With the exception of Mars, the visible planets will all be in the…

  20. Pilgrim Summer.

    ERIC Educational Resources Information Center

    Trenouth, Peter

    1986-01-01

    Relates the experiences of a teacher's summer working as an "Englishman" on the "Mayflower" II, focusing on questions asked by tourists such as "Where are the other two ships?" Considering the misperceptions of history demonstrated by both young and old Americans, reflects that perhaps there was no "golden age" of education to which we should try…

  1. Summer Opportunities.

    ERIC Educational Resources Information Center

    Winds of Change, 2002

    2002-01-01

    This directory describes 24 summer internships and cooperative education programs for college students, especially in the science, engineering, and technology fields. A few programs are specifically for American Indians, minority groups, or college-bound high school students. Program entries include a brief description, skills and background…

  2. Summer Skies

    ERIC Educational Resources Information Center

    Science Scope, 2005

    2005-01-01

    During the evening hours of the summer of 2005, there will be numerous opportunities to observe several of the brighter planets as they move along their respective orbits, overtaking and passing one another, performing a planetary dance with the choreography set to orbital speeds. With the exception of Mars, the visible planets will all be in the…

  3. Summer Camp.

    ERIC Educational Resources Information Center

    Pfisterer, Bill

    About 50 participants and 8 supervisors attended the Summer Camp. Visitors were encouraged and parents often came to see what their kids were doing. Before arriving at camp, the students learned how important balancing the supplies was when loading the boats. On the way to camp, students studied the: (1) landmarks so that they could find their way…

  4. Unique radiation problems associated with the SLAC Linear Collider

    SciTech Connect

    Jenkins, T.M.; Nelson, W.R.

    1987-01-01

    The SLAC Linear Collider (SLC) is a variation of a new class of linear colliders whereby two linear accelerators are aimed at each other to collide intense bunches of electrons and positrons together. Conventional storage rings are becoming ever more costly as the energy of the stored beams increases such that the cost of two linear colliders per GeV is less than that of electron-positron storage rings at cm energies above about 100 GeV. The SLC being built at SLAC is designed to achieve a center-of-mass energy of 100 GeV by accelerating intense bunches of particles, both electrons and positrons, in the SLAC linac and transporting them along two different arcs to a point where they are focused to a small radius and made to collide head on. The SLC has two main goals. The first is to develop the physics and technology of linear colliders. The other is to achieve center-of-mass energies above 90 GeV in order to investigate the unification of the weak and electromagnetic interactions in the energy range above 90 GeV; (i.e., Z/sup 0/, etc.). This note discusses a few of the special problems that were encountered by the Radiation Physics group at SLAC during the design and construction of the SLAC Linear Collider. The nature of these problems is discussed along with the methods employed to solve them.

  5. Polar Summer

    NASA Technical Reports Server (NTRS)

    2005-01-01

    30 December 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows eroding mesas of frozen carbon dioxide in the martian south polar residual cap. During the summer season, the scarps that bound each pit and mesa in the south polar region become dark as carbon dioxide sublimes away. The darkening might result from the roughening of the surfaces from which ice is subliming, or from the concentration of trace amounts of dust on these slopes, or both.

    Location near: 84.7oS, 48.2oW Image width: 3 km (1.9 mi) Illumination from: upper left Season: Southern Summer

  6. Tufts University Summer Guidance Institute on the Utilization of Occupational Education and Placement (Medford, Mass., Jul 20-31, 1970). Final Report.

    ERIC Educational Resources Information Center

    Curtin, Elizabeth M.; Morine, John P.

    The purposes of this institute were to (1) provide the information needed to offer vocational courses for the non-college bound handicapped and disadvantaged, (2) point out the need for remedial and psychological services, (3) increase participants' understanding of the role of the counselor in our rapidly changing society, (4) increase emphasis…

  7. A Solid State Modulator for Driving SLAC 5045 Klystrons

    SciTech Connect

    Lamare, Jeffrey E

    2002-09-19

    A test is ongoing at the Stanford Linear Accelerator Center (SLAC) where a solid state induction modulator is driving a SLAC 5045 klystron. The modulator generates 22 kV, 6 kA pulses that are stepped up by a 15.1 transformer that is a part of the klystron's pulse tank. The modulator's pulse duration is adjustable up to the volt-second limit of its cores, and it is capable of a pulse repetition frequency up to 120 Hz. The modulator's design, construction, and experimental results are the focus of this paper.

  8. Review of the SLAC and Les Houches workshops

    SciTech Connect

    Prescott, C.Y.

    1994-12-01

    Polarized Electron Source workshops have been held at varying intervals, beginning in 1983 when Charles Sinclair convened the first at SLAC. Since that time, three workshops were held in conjunction with the International Spin Symposia and two at other occasions. The increasing importance of polarized electron beams at accelerators has stimulated interest in these workshops. Two workshops have been held since the last International Spin Symposium in Nagoya. In 1993, a workshop was held at SLAC, and in 1994 at Les Houches, a polarized electron beam session was held as part of a polarized beam and targets workshop. This report summarizes highlights from the latter two workshops.

  9. The Turn-on of LCLS: the X-Ray Free Electron Laser at SLAC ( Keynote - 2011 JGI User Meeting)

    ScienceCinema

    Drell, Persis [SLAC Director

    2011-06-08

    The U.S. Department of Energy Joint Genome Institute (JGI) invited scientists interested in the application of genomics to bioenergy and environmental issues, as well as all current and prospective users and collaborators, to attend the annual DOE JGI Genomics of Energy & Environment Meeting held March 22-24, 2011 in Walnut Creek, Calif. The emphasis of this meeting was on the genomics of renewable energy strategies, carbon cycling, environmental gene discovery, and engineering of fuel-producing organisms. The meeting features presentations by leading scientists advancing these topics. SLAC National Laboratory Director Persis Drell gives a keynote talk on "The Turn-on of LCLS: the X-Ray Free-Electron Laser at SLAC" at the 6th Genomics of Energy & Environment Meeting on March 22, 2011

  10. The Turn-on of LCLS: the X-Ray Free Electron Laser at SLAC ( Keynote - 2011 JGI User Meeting)

    SciTech Connect

    Drell, Persis

    2011-03-22

    The U.S. Department of Energy Joint Genome Institute (JGI) invited scientists interested in the application of genomics to bioenergy and environmental issues, as well as all current and prospective users and collaborators, to attend the annual DOE JGI Genomics of Energy & Environment Meeting held March 22-24, 2011 in Walnut Creek, Calif. The emphasis of this meeting was on the genomics of renewable energy strategies, carbon cycling, environmental gene discovery, and engineering of fuel-producing organisms. The meeting features presentations by leading scientists advancing these topics. SLAC National Laboratory Director Persis Drell gives a keynote talk on "The Turn-on of LCLS: the X-Ray Free-Electron Laser at SLAC" at the 6th Genomics of Energy & Environment Meeting on March 22, 2011

  11. The Summer School Alpbach

    NASA Astrophysics Data System (ADS)

    Gitsch, Michaela; Manoharan, Periasamy K.

    2015-02-01

    Sixty young, highly qualified European science and engineering students converge annually for stimulating 10 days of work in the Austrian Alps. Four teams are formed, each of which designs a space mission, which are then judged by a jury of experts. Students learn how to approach the design of a satellite mission and explore new and startling ideas supported by experts. The Summer School Alpbach enjoys more than 30 years of tradition in providing in-depth teaching on different topics of space science and space technology, featuring lectures and concentrated working sessions on mission studies in self-organised working groups. The Summer School is organised by the Austrian Research Promotion Agency (FFG) and co-sponsored by the European Space Agency (ESA), the International Space Science Institute (ISSI), and the national space authorities of its member and cooperating states.

  12. Review of trigger and on-line processors at SLAC

    SciTech Connect

    Lankford, A.J.

    1984-07-01

    The role of trigger and on-line processors in reducing data rates to manageable proportions in e/sup +/e/sup -/ physics experiments is defined not by high physics or background rates, but by the large event sizes of the general-purpose detectors employed. The rate of e/sup +/e/sup -/ annihilation is low, and backgrounds are not high; yet the number of physics processes which can be studied is vast and varied. This paper begins by briefly describing the role of trigger processors in the e/sup +/e/sup -/ context. The usual flow of the trigger decision process is illustrated with selected examples of SLAC trigger processing. The features are mentioned of triggering at the SLC and the trigger processing plans of the two SLC detectors: The Mark II and the SLD. The most common on-line processors at SLAC, the BADC, the SLAC Scanner Processor, the SLAC FASTBUS Controller, and the VAX CAMAC Channel, are discussed. Uses of the 168/E, 3081/E, and FASTBUS VAX processors are mentioned. The manner in which these processors are interfaced and the function they serve on line is described. Finally, the accelerator control system for the SLC is outlined. This paper is a survey in nature, and hence, relies heavily upon references to previous publications for detailed description of work mentioned here. 27 references, 9 figures, 1 table.

  13. SLAC: A Tool for Addressing Chaos in the Ecology Classroom

    ERIC Educational Resources Information Center

    Hamilton, A. J.

    2005-01-01

    Until the early 1970s, ecologists generally assumed that erratic fluctuations observed in natural populations were a product of stochastic noise. It is now known that extremely complex dynamics can arise from basic deterministic processes. This field of study is generally called chaos theory. Here, a computer program, SLAC (Stability, Limits, And…

  14. SLAC electron-positron colliders: present and future

    SciTech Connect

    Richter, B.

    1986-09-01

    Stanford University's colliding beam program is outlined, including the SPEAR and PEP colliders and the SLAC linear collider. The accelerator developments to be pursued on these facilities are discussed, as well as advanced accelerator research and development. The items covered in the advanced accelerator research include beamstrahlung, stability requirements, breakdown limits, and power sources. (LEW)

  15. SLAC linear collider: the machine, the physics, and the future

    SciTech Connect

    Richter, B.

    1981-11-01

    The SLAC linear collider, in which beams of electrons and positrons are accelerated simultaneously, is described. Specifications of the proposed system are given, with calculated preditions of performance. New areas of research made possible by energies in the TeV range are discussed. (GHT)

  16. Where do we stand on the SLC (SLAC Linear Collider)

    SciTech Connect

    Kozanecki, W.

    1989-02-01

    This paper reviews the current performance of the SLAC Linear Collider, as well as the issues, problems and prospects facing the project. A few of the original accelerator physics results achieved in the last year are described in detail. 36 refs., 12 figs., 1 tab.

  17. SLAC: A Tool for Addressing Chaos in the Ecology Classroom

    ERIC Educational Resources Information Center

    Hamilton, A. J.

    2005-01-01

    Until the early 1970s, ecologists generally assumed that erratic fluctuations observed in natural populations were a product of stochastic noise. It is now known that extremely complex dynamics can arise from basic deterministic processes. This field of study is generally called chaos theory. Here, a computer program, SLAC (Stability, Limits, And…

  18. SLAC Users Bulletin No. 102, November 1985-April 1986

    SciTech Connect

    Keller, L. P.; Edminster, D.

    1986-01-01

    The status experimental activities at SLAC is reported, including the long-range schedule and a list of approved high-energy experiments. Work on PEP, SPEAR, and the SLC is included, as well as computing. Such operational data as operating hours and experimental hours are given. (LEW)

  19. Laser Safety for the Experimental Halls at SLAC_s Linac Coherent Light Source (LCLS)

    SciTech Connect

    Woods, Michael; Anthony, Perry; Barat, Ken; Gilevich, Sasha; Hays, Greg; White, William E.; /SLAC

    2009-01-15

    The LCLS at the SLAC National Accelerator Laboratory will be the world's first source of an intense hard x-ray laser beam, generating x-rays with wavelengths of 1nm and pulse durations less than 100fs. The ultrafast x-ray pulses will be used in pump-probe experiments to take stop-motion pictures of atoms and molecules in motion, with pulses powerful enough to take diffraction images of single molecules, enabling scientists to elucidate fundamental processes of chemistry and biology. Ultrafast conventional lasers will be used as the pump. In 2009, LCLS will deliver beam to the Atomic Molecular and Optical (AMO) Experiment, located in one of 3 x-ray Hutches in the Near Experimental Hall (NEH). The NEH includes a centralized Laser Hall, containing up to three Class 4 laser systems, three x-ray Hutches for experiments and vacuum transport tubes for delivering laser beams to the Hutches. The main components of the NEH laser systems are a Ti:sapphire oscillator, a regen amplifier, green pump lasers for the oscillator and regen, a pulse compressor and a harmonics conversion unit. Laser safety considerations and controls for the ultrafast laser beams, multiple laser controlled areas, and user facility issues are discussed.

  20. Indian Summer

    SciTech Connect

    Galindo, E.

    1997-08-01

    This paper focuses on preserving and strengthening two resources culturally and socially important to the Shoshone-Bannock Indian Tribe on the Fort Hall Reservation in Idaho; their young people and the Pacific-Northwest Salmon. After learning that salmon were not returning in significant numbers to ancestral fishing waters at headwater spawning sites, tribal youth wanted to know why. As a result, the Indian Summer project was conceived to give Shoshone-Bannock High School students the opportunity to develop hands-on, workable solutions to improve future Indian fishing and help make the river healthy again. The project goals were to increase the number of fry introduced into the streams, teach the Shoshone-Bannock students how to use scientific methodologies, and get students, parents, community members, and Indian and non-Indian mentors excited about learning. The students chose an egg incubation experiment to help increase self-sustaining, natural production of steelhead trout, and formulated and carried out a three step plan to increase the hatch-rate of steelhead trout in Idaho waters. With the help of local companies, governmental agencies, scientists, and mentors students have been able to meet their project goals, and at the same time, have learned how to use scientific methods to solve real life problems, how to return what they have used to the water and land, and how to have fun and enjoy life while learning.

  1. Summer Series 2012 - Shashi Buluswar

    ScienceCinema

    Shashi Buluswar

    2013-06-24

    The last installment of the "Summer Series of Conversations" took place Wednesday, August 1, with guest Shashi Buluswar, the executive director of the LBNL Institute for Globally Transformative Technologies (LIGTT). The Institute seeks to foster the discovery, development and deployment of a generation of low-carbon, affordable technologies that will advance sustainable methods to fight global poverty. The event, was hosted by Public Affairs Head Jeff Miller.

  2. Summer Series 2012 - Shashi Buluswar

    SciTech Connect

    Shashi Buluswar

    2012-08-08

    The last installment of the "Summer Series of Conversations" took place Wednesday, August 1, with guest Shashi Buluswar, the executive director of the LBNL Institute for Globally Transformative Technologies (LIGTT). The Institute seeks to foster the discovery, development and deployment of a generation of low-carbon, affordable technologies that will advance sustainable methods to fight global poverty. The event, was hosted by Public Affairs Head Jeff Miller.

  3. SLAC Next-Generation High Availability Power Supply

    SciTech Connect

    Bellomo, P.; MacNair, D.; ,

    2010-06-11

    SLAC recently commissioned forty high availability (HA) magnet power supplies for Japan's ATF2 project. SLAC is now developing a next-generation N+1 modular power supply with even better availability and versatility. The goal is to have unipolar and bipolar output capability. It has novel topology and components to achieve very low output voltage to drive superconducting magnets. A redundant, embedded, digital controller in each module provides increased bandwidth for use in beam-based alignment, and orbit correction systems. The controllers have independent inputs for connection to two external control nodes. Under fault conditions, they sense failures and isolate the modules. Power supply speed mitigates the effects of fault transients and obviates subsequent magnet standardization. Hot swap capability promises higher availability and other exciting benefits for future, more complex, accelerators, and eventually the International Linear Collider project.

  4. Laser Tracker Test Facility at SLAC - Progress Report

    SciTech Connect

    Gassner, G.L.; Ruland, R.E.; /SLAC

    2008-02-22

    Physics experiments at SLAC require high accuracy positioning, e. g. 100 {micro}m over a distance of 150 m or 25 {micro}m in a 10 x 10 x 3 meter volume. Laser Tracker measurement systems have become one of the most important tools for achieving these accuracies when mapping components. In order to improve and get a better understanding of laser tracker measurement tolerances we extended our laboratory with a rotary calibration table (Kugler GmbH) providing an accuracy of better than 0.2 arcsec. This paper gives an overview of the calibration table and its evaluation. Results of tests on two of our Laser Trackers utilizing the new rotary table as well as the SLAC interferometer bench are presented.

  5. Anterior superior instability with rotator cuff tearing: SLAC lesion.

    PubMed

    Savoie, F H; Field, L D; Atchinson, S

    2001-07-01

    Anterosuperior instability of the shoulder may occur from a variety of pathologic lesions. We describe a specific entity, the SLAC (superior labrum, anterior cuff) lesion that involves an association of anterior-superior labral tear with a partial supraspinatus tear. We retrospectively isolated a group of 40 patients with this lesion. The presenting complaints, physical examination findings, surgical findings, and results were isolated. Overhead activities were the most common etiology; load and shift instability testing and whipple rotator cuff testing were the most common physical examination findings. Surgical repair was successful in 37 of the 40 patients. The SLAC lesion is a definable clinical entity with predictable history, examination, surgical pathology, and satisfactory results from surgery. PMID:11888140

  6. Determination of Longitudinal Phase Space in SLAC Main Accelerator Beams

    SciTech Connect

    Barnes, C.; Decker, F.-J.; Emma, P.; Hogan, M.J.; Iverson, R.; Krejcik, P.; O'Connell, C.L.; Siemann, R.; Walz, D.; Clayton, C.E.; Huang, C.; Johnson, D.K.; Joshi, C.; Lu, W.; Marsh, K.A.; Deng, S.; Katsouleas, T.; Muggli, P.; Oz, E.; /Southern California U.

    2005-06-07

    In the E164 Experiment at that Stanford Linear Accelerator Center (SLAC), we drive plasma wakes for electron acceleration using 28.5 GeV bunches from the main accelerator. These bunches can now be made with an RMS length of 12 microns, and accurate direct measurement of their lengths is not feasible shot by shot. Instead, we use an indirect technique, measuring the energy spectrum at the end of the linac and comparing with detailed simulations of the entire machine. We simulate with LiTrack, a 2D particle tracking code developed at SLAC. Understanding the longitudinal profile allows a better understanding of acceleration in the plasma wake, as well as investigation of related effects. We discuss the method and validation of our phase space determinations.

  7. SLAC E144 Plots, Simulation Results, and Data

    DOE Data Explorer

    The 1997 E144 experiments at the Stanford Linear Accelerator Center (SLAC) utilitized extremely high laser intensities and collided huge groups of photons together so violently that positron-electron pairs were briefly created, actual particles of matter and antimatter. Instead of matter exploding into heat and light, light actually become matter. That accomplishment opened a new path into the exploration of the interactions of electrons and photons or quantum electrodynamics (QED). The E144 information at this website includes Feynmann Diagrams, simulation results, and data files. See also aseries of frames showing the E144 laser colliding with a beam electron and producing an electron-positron pair at http://www.slac.stanford.edu/exp/e144/focpic/focpic.html and lists of collaborators' papers, theses, and a page of press articles.

  8. An X-Band Gun Test Area at SLAC

    SciTech Connect

    Limborg-Deprey, C.; Adolphsen, C.; Chu, T.S.; Dunning, M.P.; Jobe, R.K.; Jongewaard, E.N.; Hast, C.; Vlieks, A.E.; Wang, F.; Walz, D.R.; Marsh, R.A.; Anderson, S.G.; Hartemann, F.V.; Houck, T.L.; /LLNL, Livermore

    2012-09-07

    The X-Band Test Area (XTA) is being assembled in the NLCTA tunnel at SLAC to serve as a test facility for new RF guns. The first gun to be tested will be an upgraded version of the 5.6 cell, 200 MV/m peak field X-band gun designed at SLAC in 2003 for the Compton Scattering experiment run in ASTA. This new version includes some features implemented in 2006 on the LCLS gun such as racetrack couplers, increased mode separation and elliptical irises. These upgrades were developed in collaboration with LLNL since the same gun will be used in an injector for a LLNL Gamma-ray Source. Our beamline includes an X-band acceleration section which takes the electron beam up to 100 MeV and an electron beam measurement station. Other X-Band guns such as the UCLA Hybrid gun will be characterized at our facility.

  9. Linac design for the LCLS project at SLAC

    SciTech Connect

    Bharadwaj, V.K.; Bane, K.; Clendenin, J.

    1997-05-01

    The Linac Coherent Light Source (LCLS) at SLAC is being designed to produce intense, coherent 0.15-nm x-rays. These x-rays will be produced by a single pass of a 15 GeV bunched electron beam through a long undulator. Nominally, the bunches have a charge of 1 nC, normalized transverse emittances of less than 1.5{pi} mm-mr and an rms bunch length of 20 {mu}m. The electron beam will be produced using the last third of the SLAC 3-km linac in a manner compatible with simultaneous operation of the remainder of the linac for PEP-II. The linac design necessary to produce an electron beam with the required brightness for LCLS is discussed, and the specific linac modifications are described.

  10. The X-band klystron program at SLAC

    SciTech Connect

    Caryotakis, G.

    1996-04-01

    The X-band rf source development at SLAC can be considered a qualified success. A total of twelve klystrons were built. Six of them are still in use. The latest tube, XL4, produced 75 MW at an efficiency of 47.5 percent. However, victory cannot be declared as yet, since an NLC prototype has not been fully designed and the decision between permanent magnet focusing and a super-conducting solenoid has not been formally made. Daryl Sprehn`s paper will present the status of the PPM klystron development. The authors believe that a PPM X-band source will work, at 50 as well as at 75 megawatts. But they are prepared to adapt the XL4 design to a super-conducting solenoid, should the PPM klystron develop unexpected problems. The SLAC program is now in its seventh year. It may well be the longest and most expensive microwave tube development on record, in a government laboratory or in industry. Direct and related costs for the total effort are probably of the order of $10 million. In these circumstances it is perhaps not surprising that it has been possible to produce a klystron with the performance of XL4. At the same time, it must be said that the necessary leap in technology from the SLAC 60-megawatt S-band production klystrons to a klystron of comparable performance at four times the frequency could not be realized without some very careful experimentation and, most importantly, without the infrastructure for tube fabrication and testing available at SLAC. The design of an 11.4 GHz 50--100 MW klystron, with microsecond pulses and a pulse repetition frequency of 180 Hz presents a number of technical challenges which are listed here.

  11. Preliminary results of the echo-seeding experiment at SLAC

    SciTech Connect

    Xiang, D.; Colby, E.; Ding, Y.; Dunning, M.; Frederico, J.; Gilevich, S.; Hast, C.; Jobe, K.; McCormick, D.; Nelson, J.; Raubenheimer, T.O.; Soong, K.; Stupakov, G.; Szalata, Z.; Walz, D.; Weathersby, S.; Woodley, M.; Corlett, J.; Qiang, J.; Penn, G.; Prestemon, S.; Schlueter, R.; Venturini, M.; Wan, W.; Pernet, P-L.

    2010-05-23

    ECHO-7 is a proof-of-principle echo-enabled harmonic generation FEL experiment in the Next Linear Collider Test Accelerator (NLCTA) at SLAC. The experiment aims to generate coherent radiation at 318 nm and 227 nm, which are the 5th and 7th harmonic of the infrared seed laser. In this paper we present the preliminary results from the commissioning run of the completed experimental setup which started in April 2010.

  12. 77 FR 68134 - Submission for OMB Review; Comment Request (30-day): National Institute of Nursing Research (NINR...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-15

    ...): National Institute of Nursing Research (NINR) Summer Genetics Institute Alumni Survey SUMMARY: Under the... publication. Proposed Collection: National Institute of Nursing Research (NINR) Summer Genetics Institute Alumni Survey, -0925-New Need and Use of Information Collection: The NINR Summer Genetics...

  13. Recent Upgrade of the Klystron Modulator at SLAC

    SciTech Connect

    Nguyen, M.N.; Burkhart, C.P.; Lam, B.K.; Morris, B.; /SLAC

    2011-11-04

    The SLAC National Accelerator Laboratory employs 244 klystron modulators on its two-mile-long linear accelerator that has been operational since the early days of the SLAC establishment in the sixties. Each of these original modulators was designed to provide 250 kV, 262 A and 3.5 {mu}S at up to 360 pps using an inductance-capacitance resonant charging system, a modified type-E pulse-forming network (PFN), and a pulse transformer. The modulator internal control comprised of large step-start resistor-contactors, vacuum-tube amplifiers, and 120 Vac relays for logical signals. A major, power-component-only upgrade, which began in 1983 to accommodate the required beam energy of the SLAC Linear Collider (SLC) project, raised the modulator peak output capacity to 360 kV, 420 A and 5.0 {mu}S at a reduced pulse repetition rate of 120 pps. In an effort to improve safety, performance, reliability and maintainability of the modulator, this recent upgrade focuses on the remaining three-phase AC power input and modulator controls. The upgrade includes the utilization of primary SCR phase control rectifiers, integrated fault protection and voltage regulation circuitries, and programmable logic controllers (PLC) -- with an emphasis on component physical layouts for safety and maintainability concerns. In this paper, we will describe the design and implementation of each upgraded component in the modulator control system. We will also report the testing and present status of the modified modulators.

  14. Polarization for the by-pass SLAC/PEP collider

    SciTech Connect

    Chao, A.W.

    1980-06-01

    It was suggested that one can collide the store e/sup +/ beam in PEP with the e/sup /minus// beam from SLAC to reach a center-of-mass energy higher than that achieved by the PEP colliding beams. Although the future of this PEP/SLAC collider is not yet certain, it is useful to first explore its physics possibilities. One possible version of the SLAC/PEP collider utilizes a by-pass at the interaction point; the stored beam is displaced vertically by a set of vertical bending magnets every time the linac beam arrives. One feature of this by-pass scheme that makes it attractive is that the amount of the vertical displacement of the by-pass can be chosen so that the spin polarization of the stored beam is made longitudinal at the point of interaction. In this note, we have studied the various depolarization effects of the stored e/sup +/ beam due to the perturbation of the by-pass magnets. 1 fig.

  15. The SLAC Vertical Comparator for the Calibration of Digital Levels

    SciTech Connect

    Woschitz, Helmut; Gassner, Georg; Ruland, Robert; /SLAC

    2006-12-06

    Digital levels replaced spirit levels in most fields of precise height measurements because of the automation of the height readings. Three manufacturers offer digital levels with a single reading resolution of 10 {micro}m, and for all of them systematic effects are known. In Europe several facilities for system calibration of digital levels using vertical comparators were established within the last decade. However, there still was no system calibration facility in North America. In order to guarantee the accuracy required for the alignment of experiments at the Stanford Linear Accelerator Center (SLAC) a calibration facility for the system calibration of digital levels was built. In this paper the setup of the SLAC vertical comparator is described in detail and its standard uncertainty is derived. In order to perform traditional rod calibration of conventional line-scaled rods, a CCD camera was integrated into the SLAC comparator. The CCD camera setup is also briefly described. To demonstrate the capabilities of the comparator, results of system and rod calibration are shown.

  16. Latest Results in SLAC 75-MW PPM Klystrons

    SciTech Connect

    Sprehn, D.; Caryotakis, G.; Haase, A.; Jongewaard, E.; Laurent, L.; Pearson, C.; Phillips, R.; /SLAC

    2006-03-06

    75 MW X-band klystrons utilizing Periodic Permanent Magnet (PPM) focusing have been undergoing design, fabrication and testing at the Stanford Linear Accelerator Center (SLAC) for almost nine years. The klystron development has been geared toward realizing the necessary components for the construction of the Next Linear Collider (NLC). The PPM devices built to date which fit this class of operation consist of a variety of 50 MW and 75 MW devices constructed by SLAC, KEK (Tsukuba, Japan) and industry. All these tubes follow from the successful SLAC design of a 50 MW PPM klystron in 1996. In 2004 the latest two klystrons were constructed and tested with preliminary results reported at EPAC2004. The first of these two devices was tested to the full NLC specifications of 75 MW, 1.6 microseconds pulse length, and 120 Hz. This 14.4 kW average power operation came with a tube efficiency >50%. The most recent testing of these last two devices will be presented here. Design and manufacturing issues of the latest klystron, due to be tested by the Fall of 2005, are also discussed.

  17. Compliance of SLAC_s Laser Safety Program with OSHA Requirements for the Control of Hazardous Energy

    SciTech Connect

    Woods, Michael; /SLAC

    2009-01-15

    SLAC's COHE program requires compliance with OSHA Regulation 29CFR1910.147, 'The control of hazardous energy (lockout/tagout)'. This regulation specifies lockout/tagout requirements during service and maintenance of equipment in which the unexpected energization or start up of the equipment, or release of stored energy, could cause injury to workers. Class 3B and Class 4 laser radiation must be considered as hazardous energy (as well as electrical energy in associated equipment, and other non-beam energy hazards) in laser facilities, and therefore requires careful COHE consideration. This paper describes how COHE is achieved at SLAC to protect workers against unexpected Class 3B or Class 4 laser radiation, independent of whether the mode of operation is normal, service, or maintenance.

  18. Report on the 2008 ISAGA Summer School

    ERIC Educational Resources Information Center

    van de Westelaken, Marleen

    2011-01-01

    This article reports on the 2008 ISAGA Summer School held in New Delhi (Gurgaon), India. This Summer School was hosted by the Institute for Integrated Learning in Management. Participants came from all over the world. This year's theme was "The Art and Science of Simulation and Gaming Design and Facilitation for Business and Management."

  19. Legitimacy and Integrity of Summer Sessions.

    ERIC Educational Resources Information Center

    Taylor, Alton L.

    The paper offers a framework for examining the organization and governance of summer sessions that best support the college or university's institutional mission of teaching. Discussion centers on issues of legitimacy and integrity that arise when summer sessions deviate from the primary responsibility of meeting the academic needs of students.…

  20. Who Said Learning about the Constitution Isn't Fun? Active Lessons on the U.S. Constitution for Junior and Senior High School Students. Lessons created by participants at "Congress and the Constitution: A Summer Institute for Teachers" (Ontario, California, 1988).

    ERIC Educational Resources Information Center

    Cramer, Elizabeth, Ed.; Hill, Margaret, Ed.

    Twenty-eight lesson plans developed by California teachers who attended a summer institute on Congress and the Constitution are presented in this document. Sample lesson plan titles are: (1) "Geopolitics and the Constitution," (2) "Judicial Review," (3) "Electoral College and the Constitution," (4) "First Amendment Rights," (5) "Mr. Truman and the…

  1. Who Said Learning about the Constitution Isn't Fun? Active Lessons on the U.S. Constitution for Junior and Senior High School Students. Lessons created by participants at "Congress and the Constitution: A Summer Institute for Teachers" (Ontario, California, 1988).

    ERIC Educational Resources Information Center

    Cramer, Elizabeth, Ed.; Hill, Margaret, Ed.

    Twenty-eight lesson plans developed by California teachers who attended a summer institute on Congress and the Constitution are presented in this document. Sample lesson plan titles are: (1) "Geopolitics and the Constitution," (2) "Judicial Review," (3) "Electoral College and the Constitution," (4) "First Amendment Rights," (5) "Mr. Truman and the…

  2. Summer Institute in Biomedical Engineering, 1973

    NASA Technical Reports Server (NTRS)

    Deloatch, E. M.; Coble, A. J.

    1974-01-01

    Bioengineering of medical equipment is detailed. Equipment described includes: an environmental control system for a surgical suite; surface potential mapping for an electrode system; the use of speech-modulated-white-noise to differentiate hearers and feelers among the profoundly deaf; the design of an automatic weight scale for an isolette; and an internal tibial torsion correction study. Graphs and charts are included with design specifications of this equipment.

  3. Antarctica--the Ultimate Summer Institute.

    ERIC Educational Resources Information Center

    Van Wey, Nate J.

    1995-01-01

    Describes personal experiences of a participant in the National Science Foundation program, Teachers Experiencing Antarctica. Uses the study of the temperature history of Taylor Dome to provide teachers with the experience of research and help other teachers recognize that there are opportunities outside the classroom for personal and professional…

  4. 1998 Complex Systems Summer School

    SciTech Connect

    1998-12-15

    For the past eleven years a group of institutes, centers, and universities throughout the country have sponsored a summer school in Santa Fe, New Mexico as part of an interdisciplinary effort to promote the understanding of complex systems. The goal of these summer schools is to provide graduate students, postdoctoral fellows and active research scientists with an introduction to the study of complex behavior in mathematical, physical, and living systems. The Center for Nonlinear Studies supported the eleventh in this series of highly successful schools in Santa Fe in June, 1998.

  5. Slithering into Summer

    ERIC Educational Resources Information Center

    Scott, Catherine; Matthews, Catherine

    2012-01-01

    The summer provides a unique opportunity for children to further their interests in science, especially science in the out-of-doors. Once school is out for the summer, there is seemingly unlimited time, with no strict curriculum guidelines to follow. For students with a passion for the out-of-doors, summer science camps and school-based summer

  6. Experiments with very-high-power RF pulses at SLAC

    SciTech Connect

    Hogg, H.A.; Loew, G.A.; Price, V.G.

    1983-03-01

    Experiments in which the powers of two SLAC klystrons were combined and fed into a resonant cavity pulse-compression system (SLED) are described. Pulse powers up to 65 MW into SLED were reached. The corresponding instantaneous peak power out of SLED was 390 MW. After normal initial aging, no persistent RF breakdown problems were encountered. X-radiation at the SLED cavities was generally less than 400 mR/h after aging. The theoretical relationship between x-radiation intensity and RF electric field strength is discussed.

  7. Superconducting final focus for the SLAC Linear Collider

    SciTech Connect

    Ash, W.W.; Barrera, F.; Burgess, W.; Cook, K.; Cutler, H.; Ferrie, J.; Petersen, H.; Sawyer, D.; Rinta, R.

    1992-05-01

    Triplets composed of superconducting quadrupoles have been built and installed as the final focusing element for the high-energy positron and electron beams of the SLAC Linear Collider. Special features include independent alignment to 100-micron tolerance inside a common cryostat; non-magnetic materials to allow operation inside the detector`s solenoid field; a continuous-flow helium-only system using 50-meter-long flexible transfer lines; and complete operation of the system before installation. The mechanical design and cryogenic operation experience are presented.

  8. Superconducting final focus for the SLAC Linear Collider

    SciTech Connect

    Ash, W.W.; Barrera, F.; Burgess, W.; Cook, K.; Cutler, H.; Ferrie, J.; Petersen, H.; Sawyer, D.; Rinta, R.

    1992-05-01

    Triplets composed of superconducting quadrupoles have been built and installed as the final focusing element for the high-energy positron and electron beams of the SLAC Linear Collider. Special features include independent alignment to 100-micron tolerance inside a common cryostat; non-magnetic materials to allow operation inside the detector's solenoid field; a continuous-flow helium-only system using 50-meter-long flexible transfer lines; and complete operation of the system before installation. The mechanical design and cryogenic operation experience are presented.

  9. Neutron dosimetry at SLAC: Neutron sources and instrumentation

    SciTech Connect

    Liu, J.C.; Jenkins, T.M.; McCall, R.C.; Ipe, N.E.

    1991-10-01

    This report summarizes in detail the dosimetric characteristics of the five radioisotopic type neutron sources ({sup 238}PuBe, {sup 252}Cf, {sup 238}PuB, {sup 238}PuF{sub 4}, and {sup 238}PuLi) and the neutron instrumentation (moderated BF{sub 3} detector, Anderson-Braun (AB) detector, AB remmeter, Victoreen 488 Neutron Survey Meter, Beam Shut-Off Ionization Chamber, {sup 12}C plastic scintillator detector, moderated indium foil detector, and moderated and bare TLDs) that are commonly used for neutron dosimetry at the Stanford Linear Accelerator Center (SLAC). 36 refs,. 19 figs.

  10. Reliability of Operation at SLAC in the LCLS Era

    SciTech Connect

    Wienands, U.; Allen, W.B.; Colocho, W.; Erickson, R.; Stanek, M.; /SLAC

    2009-06-19

    LCLS hardware availability has been above 90% for the first two commissioning runs of the accelerator. In this paper we compare the reliability data for LCLS (availability, MTBF and MTTR) to those of PEP-II, the e{sup +}e{sup -} collider operating previously at SLAC. It may be seen that the linac availability is not significantly different now than it was before, while the availability of the whole LCLS facility is significantly higher than that of the PEP-II facility as a whole (which was about 87%). Most of the improvement is in the MTTR. Ways to improve availability towards the goal of 95% are discussed.

  11. Using the SLAC VHF and UHF radio systems

    SciTech Connect

    Struven, W.

    1987-02-01

    The use of the SLAC VHF and UHF Radio Systems and the Tunnel Antenna Systems as they are presently configured is described. The original radio system was built in 1966 and has grown in scope over the years. The Tunnel Antenna Systems were developed for, and first installed in, the PEP ring, and later added to other tunnels and redesigned to cover the UHF range, as well as VHF. The UHF radio system was designed and built for SLC use, and was first used in the SLC Arcs. The three radio systems will be described and the capabilities of each system will be defined.

  12. Commissioning the Echo-Seeding Experiment Echo-7 at SLAC

    SciTech Connect

    Weathersby, S.a E.Colby; Dunning, M.; Gilevich, S.; Hast, C.; Jobe, K.; McCormick, D.; Nelson, J.; Raubenheimer, T.O.; Soong, K.; Stupakov, G.; Szalata, Z.; Walz, D.; Woodley, M.; Xiang, D.; Pernet, P-L.; /Ecole Polytechnique, Lausanne

    2011-06-02

    ECHO-7 is a proof-of-principle echo-enabled harmonic generation (EEHG) FEL experiment in the Next Linear Collider Test Accelerator (NLCTA) at SLAC. The experiment is intended to test the EEHG principle at low electron beam energy, 120 MeV, and determine the sensitivities and limitations to understand the expected performance at the higher energy scales and harmonic numbers required for x-ray FELs. In this paper we present the experimental results from the commissioning run of the completed experimental setup which started in April 2010.

  13. Recording PEP2 Ring Beam Losses at SLAC

    SciTech Connect

    Zelazny, M.; Gromme, T.; Himel, T.; Hendrickson, L.; Krauter, K.; /SLAC

    2005-09-30

    The PEP2 (e+)(e-) storage rings contain many complex interrelated systems. When the beam aborts, examining a record of the orbit from the time just before the abort can help identify the root cause. At the Stanford Linear Accelerator Center (SLAC) a system has been developed to continuously record beam orbits from Beam Position Monitors (BPMS) into a circular buffer. When the beam is aborted the buffers are frozen and their contents are stored for later analysis. BPM orbits are saved on a turn by turn basis for 2800 turns in both the high energy ring (HER) and the low energy ring (LER). Each BPM Processor (BPMP) can either monitor the HER or the LER, but not both as the readout of the two rings is multiplexed into a single readout channel. Tools exist as part of the SLAC Control Program (SCP) to collect, display, and save the data. A physicist or operator can choose a few BPMS in which to view all 2800 turns to identify the turn in which the beam went awry; then ask for that specific orbit from all of the BPMS in the storage ring to determine the root cause of the abort.

  14. Development of X-band klystron technology at SLAC

    SciTech Connect

    Caryotakis, G.

    1997-05-01

    The SLAC design for a 1-TeV collider (NLC) requires klystrons with a performance which is well beyond the state-of-the-art for microwave tubes in the United States or abroad. The electrical specifications for the NLC klystrons are not fully established, but they are approximately as follows: Frequency, 11.4 GHz; Peak Power, 75 MW; Pulse Length, 1.5 {mu}s; Repetition Rate, 180 Hz; Gain, 50 dB; Efficiency, (including beam focusing) 50%. SLAC is in the seventh year of a program to develop these klystrons. The choice of X-band as the operating frequency, along with the sheer size of the NLC, have resulted in some new, most demanding standards for the klystrons which may power this future machine. These are related to the overall efficiency required, to the high rf gradients that must be supported at the output circuit without vacuum breakdown, and to the manufacturing cost of the 5,000-10,000 klystrons needed for the collider.

  15. A Possible CO2 Conducting and Concentrating Mechanism in Plant Stomata SLAC1 Channel

    PubMed Central

    Du, Qi-Shi; Fan, Xina-Wei; Wang, Cheng-Hua; Huang, Ri-Bo

    2011-01-01

    Background The plant SLAC1 is a slow anion channel in the membrane of stomatal guard cells, which controls the turgor pressure in the aperture-defining guard cells, thereby regulating the exchange of water vapour and photosynthetic gases in response to environmental signals such as drought, high levels of carbon dioxide, and bacterial invasion. Recent study demonstrated that bicarbonate is a small-molecule activator of SLAC1. Higher CO2 and HCO3– concentration activates S-type anion channel currents in wild-type Arabidopsis guard cells. Based on the SLAC1 structure a theoretical model is derived to illustrate the activation of bicarbonate to SLAC1 channel. Meanwhile a possible CO2 conducting and concentrating mechanism of the SLAC1 is proposed. Methodology The homology structure of Arabidopsis thaliana SLAC1 (AtSLAC1) provides the structural basis for study of the conducting and concentrating mechanism of carbon dioxide in SLAC1 channels. The pKa values of ionizable amino acid side chains in AtSLAC1 are calculated using software PROPKA3.0, and the concentration of CO2 and anion HCO3– are computed based on the chemical equilibrium theory. Conclusions The AtSLAC1 is modeled as a five-region channel with different pH values. The top and bottom layers of channel are the alkaline residue-dominated regions, and in the middle of channel there is the acidic region surrounding acidic residues His332. The CO2 concentration is enhanced around 104 times by the pH difference between these regions, and CO2 is stored in the hydrophobic region, which is a CO2 pool. The pH driven CO2 conduction from outside to inside balances the back electromotive force and maintain the influx of anions (e.g. Cl– and NO3–) from inside to outside. SLAC1 may be a pathway providing CO2 for photosynthesis in the guard cells. PMID:21931667

  16. The News, Summer 1999-Summer 2000.

    ERIC Educational Resources Information Center

    Robertson, Trische, Ed.

    2000-01-01

    This document contains five quarterly issues of The News, published Summer 1999 through Summer 2000 by the Community College League of California. The following items are contained in this document: "Grant Writing Success Depends on Resources, Information and Staff,""College Theaters Perform Balancing Act with Community, Instruction,…

  17. The 1981 Summer Research Fellowship Program

    NASA Technical Reports Server (NTRS)

    Spencer, J. H. (Compiler)

    1981-01-01

    The NASA-Hampton Institute Summer Research Fellowship Program, offering capable scientists and engineers at traditionally black institutions an opportunity to participate in research activities in an environment at the Langley Research Center where basic research is of primary importance is considered. The Summer Research Fellowship Program, specifically designed to assist these faculty members in identifying areas of research which correlate positively with their individual interest and capabilities is discussed. It is also designed to help them to initiate viable research which increases their technical knowledge about how research efforts at their institutions might be increased.

  18. Summer Sessions in Public Two-Year Colleges.

    ERIC Educational Resources Information Center

    Young, Raymond J.

    In 1988-89, a study was conducted to determine the relationship between selected characteristics of summer sessions in public two-year colleges and such institutional characteristics as size, location, type (i.e., community college or technical institute), and administrative structure for summer terms. The study focused on the philosophical…

  19. Slowing the Summer Slide

    ERIC Educational Resources Information Center

    Smith, Lorna

    2012-01-01

    Research shows that summer slide--the loss of learning over the summer break--is a huge contributor to the achievement gap between low-income students and their higher-income peers. In fact, some researchers have concluded that two-thirds of the 9th-grade reading achievement gap can be explained by unequal access to summer learning opportunities…

  20. Summer Library Reading Programs

    ERIC Educational Resources Information Center

    Fiore, Carole D.

    2007-01-01

    Virtually all public libraries in the United States provide some type of summer library reading program during the traditional summer vacation period. Summer library reading programs provide opportunities for students of many ages and abilities to practice their reading skills and maintain skills that are developed during the school year. Fiore…

  1. Slowing the Summer Slide

    ERIC Educational Resources Information Center

    Smith, Lorna

    2012-01-01

    Research shows that summer slide--the loss of learning over the summer break--is a huge contributor to the achievement gap between low-income students and their higher-income peers. In fact, some researchers have concluded that two-thirds of the 9th-grade reading achievement gap can be explained by unequal access to summer learning opportunities…

  2. Slithering into Summer

    ERIC Educational Resources Information Center

    Scott, Catherine; Matthews, Catherine

    2012-01-01

    The summer provides a unique opportunity for children to further their interests in science, especially science in the out-of-doors. Once school is out for the summer, there is seemingly unlimited time, with no strict curriculum guidelines to follow. For students with a passion for the out-of-doors, summer science camps and school-based summer…

  3. Booktalking: Avoiding Summer Drift

    ERIC Educational Resources Information Center

    Whittingham, Jeff; Rickman, Wendy A.

    2015-01-01

    Summer drift, otherwise known as loss of reading comprehension skills or reading achievement, has been a well-known and well-documented phenomenon of public education for decades. Studies from the late twentieth century to the present have demonstrated a slowdown in summer drift attributed to specific summer reading programs addressing motivation…

  4. SLAC All Access: Atomic, Molecular and Optical Science Instrument

    SciTech Connect

    Bozek, John

    2013-11-05

    John Bozek, a staff scientist at SLAC's Linac Coherent Light Source (LCLS) X-ray laser who manages the LCLS Soft X-ray Department, takes us behind the scenes at the Atomic, Molecular and Optical Science (AMO) instrument, the first of six experimental stations now operating at LCLS. Samples used in AMO experiments include atoms, molecules, clusters, and nanoscale objects such as protein crystals or viruses. Science performed at AMO includes fundamental studies of light-matter interactions in the extreme X-ray intensity of the LCLS pules, time-resolved studies of increasingly charged states of atoms and molecules, X-ray diffraction imaging of nanocrystals, and single-shot imaging of a variety of objects.

  5. Physics prospects for the SLAC B-Factory

    SciTech Connect

    Coward, D.H.

    1996-11-01

    CP violation has been an enigma since its discovery in the decays of neutral kaons in 1964. The present version of the Standard Model can accommodate CP violation by means of a non-zero phase in the Cabibbo-Kobayashi-Maskawa (CKM) matrix. However, CP violation in the kaon system occurs at the part per mille level and the Standard Model`s predictions for CP violation have not been conclusively tested. In contrast to the kaon system, B-mesons decay into a variety of final states, many of which could exhibit CP violation and therefore offer multiple tests of the Standard Model. Several large efforts currently are in progress to create dedicated experiments or factories which will provide large quantities of B-mesons which, in turn, should give large numbers of CP-violating decays. Here, a very brief presentation of the physics prospects for the SLAC B-Factory, now under construction, is presented.

  6. The ILC Marx Modulator Development Program at SLAC

    SciTech Connect

    Leyh, G.E.; /SLAC

    2005-06-07

    The International Linear Collider [ILC] baseline design requires 576 L-band klystron stations, each supplying 10MW peak RF power to the accelerating structures. Each klystron requires a modulator capable of delivering 120kV, 140A 1.6ms pulses, at 5Hz. Solid-state Marx modulator topologies are rapidly becoming feasible with the advent of PC-board-level 4500V IGBTs, fast single junction HV diodes, high density capacitors, and sophisticated modeling software. Making full use of recent technology advances, the ILC Marx Modulator program at SLAC plans to pursue a 120kV solid-state Marx design, which appears to offer significantly higher efficiency, availability, and cost savings than existing modulator options.

  7. Electron Bunch Length Measurement for LCLS at SLAC

    SciTech Connect

    Zelazny, M.; Allison, S.; Chevtsov, Sergei; Emma, P.; Kotturi, K.d.; Loos, H.; Peng, S.; Rogind, D.; Straumann, T.; /SLAC

    2007-10-04

    At Stanford Linear Accelerator Center (SLAC) a Bunch Length Measurement system has been developed to measure the length of the electron bunch for its new Linac Coherent Light Source (LCLS). This destructive measurement uses a transverse-mounted RF deflector (TCAV) to vertically streak the electron beam and an image taken with an insertable screen and a camera. The device control software was implemented with the Experimental Physics and Industrial Control System (EPICS) toolkit. The analysis software was implemented in Matlab{trademark} using the EPICS/Channel Access Interface for Scilab{trademark} and Matlab{trademark} (labCA). This architecture allowed engineers and physicists to develop and integrate their control and analysis without duplication of effort.

  8. Two-klystron Binary Pulse Compression at SLAC

    SciTech Connect

    Farkas, Z.D.; Lavine, T.L.; Menegat, A.; Vlieks, A.E.; Wang, J.W.; Wilson, P.B.

    1993-04-01

    The Binary Pulse Compression system installed at SLAC was tested using two klystrons, one with 10 MW and the other with 34 MW output. By compressing 560 ns klystron pulses into 70 ns, the measured BPC output was 175 MW, limited by the available power from the two klystrons. This output was used to provide 100-MW input to a 30-cell X-band structure in which a 100-MV/m gradient was obtained. This system, using the higher klystron outputs expected in the future has the potential to deliver the 350 MW needed to obtain 100 MV/m gradients in the 1.8-m NLC prototype structure. This note describes the timing, triggering, and phase coding used in the two-klystron experiment, and the expected and measured net-work response to three- or two-stage modulation.

  9. Thermal stress analysis of the SLAC fixed mask. Addendum

    SciTech Connect

    Johnson, G.L.; Pierce, R.E.

    1985-07-25

    X-ray beams emerging from the new SLAC electron-positron storage ring (PEP) can impinge on the walls of tangential divertor channels. A fixed mask made of OFHC copper is installed in the channel to limit wall heating. The mask is cooled with water flowing axially at 30/sup 0/C. Beam strikes on the mask cause highly localized heating in the channel structure. Analyses were completed to determine the temperatures and thermally-induced stresses due to this heating. The current design and operating conditions should result in the entrance to the fixed mask operating at a peak temperature of 105/sup 0/C with a peak thermal stress at 26% of yield.

  10. SLC status and SLAC (Stanford Linear Accelerator Center) future plans

    SciTech Connect

    Richter, B.

    1989-08-01

    In this presentation, I shall discuss the linear collider program at the Stanford Linear Accelerator Center as it is now, and as we hope to see it evolve over the next few years. Of greatest interest to the high energy accelerator physics community gathered here is the development of the linear collider concept, and so I shall concentrate most of this paper on a discussion of the present status and future evolution of the SLC. I will also briefly discuss the research and development program that we are carrying out aimed at the realization of the next generation of high-energy linear colliders. SLAC had a major colliding-beam storage-ring program as well, including present rings and design studies on future high-luminosity projects, but time constraints preclude a discussion of them. 8 figs., 3 tabs.

  11. SLAC All Access: Atomic, Molecular and Optical Science Instrument

    ScienceCinema

    Bozek, John

    2014-06-03

    John Bozek, a staff scientist at SLAC's Linac Coherent Light Source (LCLS) X-ray laser who manages the LCLS Soft X-ray Department, takes us behind the scenes at the Atomic, Molecular and Optical Science (AMO) instrument, the first of six experimental stations now operating at LCLS. Samples used in AMO experiments include atoms, molecules, clusters, and nanoscale objects such as protein crystals or viruses. Science performed at AMO includes fundamental studies of light-matter interactions in the extreme X-ray intensity of the LCLS pules, time-resolved studies of increasingly charged states of atoms and molecules, X-ray diffraction imaging of nanocrystals, and single-shot imaging of a variety of objects.

  12. SLAC modulator operation and reliability in the SLC Era

    SciTech Connect

    Donaldson, A.R.; Ashton, J.R.

    1992-06-01

    A discussion of the operation and reliability of the 244 modulators in the SLAC linac with an emphasis on the past three years of operation. The linac modulators were designed and built in the 60`s, upgraded for the SLAC Linear Collider (SLC) in the mid 80s, and despite their age are still reliable accelerator components. The 60s modulator operated at 65 MW peak and 83 kW average power. The upgrade resulted in 150 MW peak output at an average power of 87 kW, a modest increase since the repetition rate was dropped from 360 to 120 Hz. In the present accelerator configuration, the Linac operates as a source of electrons and positrons to a single pass coillider. The classic collider is a storage ring filled with oppositely charged, counter-rotating particles which are allowed to collide until an accelerator fault occurs and the stored beams are aborted. A reasonable storage ring can store and collide particles for as long as eight hours with a 10 or 20 minute filling time. A single pass collider, + on the other hand, can only produce e{sup {minus}} and e{sup +} collisions at whatever rate the source operates. To be effective the SLC must operate at 120 Hz with a very high degree of reliability and on a continuous basis. Fortunately, the linac has a modest excess of modulator/klystron systems which allows some measure of redundancy and hence some freedom from the constraint that all 244 modulator/klystrons operate simultaneously. Nonetheless, high importance is placed on modulator MTBF and MTRR or, in the parlance of reliability experts and accelerator physicists, availability. This is especially true of the modulators associated with the fundamental requirements of a collider such as injection, compression and positron production.

  13. SLAC modulator operation and reliability in the SLC Era

    SciTech Connect

    Donaldson, A.R.; Ashton, J.R.

    1992-06-01

    A discussion of the operation and reliability of the 244 modulators in the SLAC linac with an emphasis on the past three years of operation. The linac modulators were designed and built in the 60's, upgraded for the SLAC Linear Collider (SLC) in the mid 80s, and despite their age are still reliable accelerator components. The 60s modulator operated at 65 MW peak and 83 kW average power. The upgrade resulted in 150 MW peak output at an average power of 87 kW, a modest increase since the repetition rate was dropped from 360 to 120 Hz. In the present accelerator configuration, the Linac operates as a source of electrons and positrons to a single pass coillider. The classic collider is a storage ring filled with oppositely charged, counter-rotating particles which are allowed to collide until an accelerator fault occurs and the stored beams are aborted. A reasonable storage ring can store and collide particles for as long as eight hours with a 10 or 20 minute filling time. A single pass collider, + on the other hand, can only produce e{sup {minus}} and e{sup +} collisions at whatever rate the source operates. To be effective the SLC must operate at 120 Hz with a very high degree of reliability and on a continuous basis. Fortunately, the linac has a modest excess of modulator/klystron systems which allows some measure of redundancy and hence some freedom from the constraint that all 244 modulator/klystrons operate simultaneously. Nonetheless, high importance is placed on modulator MTBF and MTRR or, in the parlance of reliability experts and accelerator physicists, availability. This is especially true of the modulators associated with the fundamental requirements of a collider such as injection, compression and positron production.

  14. Loss-of-function mutation of rice SLAC7 decreases chloroplast stability and induces a photoprotection mechanism in rice.

    PubMed

    Fan, Xiaolei; Wu, Jiemin; Chen, Taiyu; Tie, Weiwei; Chen, Hao; Zhou, Fei; Lin, Yongjun

    2015-12-01

    Plants absorb sunlight to power the photochemical reactions of photosynthesis, which can potentially damage the photosynthetic machinery. However, the mechanism that protects chloroplasts from the damage remains unclear. In this work, we demonstrated that rice (Oryza sativa L.) SLAC7 is a generally expressed membrane protein. Loss-of-function of SLAC7 caused continuous damage to the chloroplasts of mutant leaves under normal light conditions. Ion leakage indicators related to leaf damage such as H2 O2 and abscisic acid levels were significantly higher in slac7-1 than in the wild type. Consistently, the photosynthesis efficiency and Fv/Fm ratio of slac7-1 were significantly decreased (similar to photoinhibition). In response to chloroplast damage, slac7-1 altered its leaf morphology (curled or fused leaf) by the synergy between plant hormones and transcriptional factors to decrease the absorption of light, suggesting that a photoprotection mechanism for chloroplast damage was activated in slac7-1. When grown in dark conditions, slac7-1 displayed a normal phenotype. SLAC7 under the control of the AtSLAC1 promoter could partially complement the phenotypes of Arabidopsis slac1 mutants, indicating a partial conservation of SLAC protein functions. These results suggest that SLAC7 is essential for maintaining the chloroplast stability in rice. PMID:25739330

  15. "Canterbury Tales" Institute.

    ERIC Educational Resources Information Center

    Ruud, Jay

    Northern State University (South Dakota) held a 4-week institute on Chaucer's "Canterbury Tales" for high school English teachers from South Dakota and four neighboring states (North Dakota, Minnesota, Iowa, and Nebraska) in summer 1989. The institute provided an opportunity for high school teachers inadequately trained in this area to become more…

  16. Setup and Calibration of SLAC's Peripheral Monitoring Stations

    SciTech Connect

    Cooper, C.

    2004-09-03

    The goals of this project were to troubleshoot, repair, calibrate, and establish documentation regarding SLAC's (Stanford Linear Accelerator Center's) PMS (Peripheral Monitoring Station) system. The PMS system consists of seven PMSs that continuously monitor skyshine (neutron and photon) radiation levels in SLAC's environment. Each PMS consists of a boron trifluoride (BF{sub 3}) neutron detector (model RS-P1-0802-104 or NW-G-20-12) and a Geiger Moeller (GM) gamma ray detector (model TGM N107 or LND 719) together with their respective electronics. Electronics for each detector are housed in Nuclear Instrument Modules (NIMs) and are plugged into a NIM bin in the station. All communication lines from the stations to the Main Control Center (MCC) were tested prior to troubleshooting. To test communication with MCC, a pulse generator (Systron Donner model 100C) was connected to each channel in the PMS and data at MCC was checked for consistency. If MCC displayed no data, the communication cables to MCC or the CAMAC (Computer Automated Measurement and Control) crates were in need of repair. If MCC did display data, then it was known that the communication lines were intact. All electronics from each station were brought into the lab for troubleshooting. Troubleshooting usually consisted of connecting an oscilloscope or scaler (Ortec model 871 or 775) at different points in the circuit of each detector to record simulated pulses produced by a pulse generator; the input and output pulses were compared to establish the location of any problems in the circuit. Once any problems were isolated, repairs were done accordingly. The detectors and electronics were then calibrated in the field using radioactive sources. Calibration is a process that determines the response of the detector. Detector response is defined as the ratio of the number of counts per minute interpreted by the detector to the amount of dose equivalent rate (in mrem per hour, either calculated or measured). Detector response for both detectors is dependent upon the energy of the incident radiation; this trend had to be accounted for in the calibration of the BF{sub 3} detector. Energy dependence did not have to be taken into consideration when calibrating the GM detectors since GM detector response is only dependent on radiation energy below 100 keV; SLAC only produces a spectrum of gamma radiation above 100 keV. For the GM detector, calibration consisted of bringing a {sup 137}Cs source and a NIST-calibrated RADCAL Radiation Monitor Controller (model 9010) out to the field; the absolute dose rate was determined by the RADCAL device while simultaneously irradiating the GM detector to obtain a scaler reading corresponding to counts per minute. Detector response was then calculated. Calibration of the BF{sub 3} detector was done using NIST certified neutron sources of known emission rates and energies. Five neutron sources ({sup 238}PuBe, {sup 238}PuB, {sup 238}PuF4, {sup 238}PuLi and {sup 252}Cf) with different energies were used to account for the energy dependence of the response. The actual neutron dose rate was calculated by date-correcting NIST source data and considering the direct dose rate and scattered dose rate. Once the total dose rate (sum of the direct and scattered dose rates) was known, the response vs. energy curve was plotted. The first station calibrated (PMS6) was calibrated with these five neutron sources; all subsequent stations were calibrated with one neutron source and the energy dependence was assumed to be the same.

  17. The University of Alabama at Birmingham Center for Community OutReach Development Summer Science Institute Program: A 3-Yr Laboratory Research Experience for Inner-City Secondary-Level Students

    ERIC Educational Resources Information Center

    Niemann, Marilyn A.; Miller, Michael L.; Davis, Thelma

    2004-01-01

    This article describes and assesses the effectiveness of a 3-yr, laboratory-based summer science program to improve the academic performance of inner-city high school students. The program was designed to gradually introduce such students to increasingly more rigorous laboratory experiences in an attempt to interest them in and model what "real"…

  18. The University of Alabama at Birmingham Center for Community OutReach Development Summer Science Institute Program: A 3-Yr Laboratory Research Experience for Inner-City Secondary-Level Students

    ERIC Educational Resources Information Center

    Niemann, Marilyn A.; Miller, Michael L.; Davis, Thelma

    2004-01-01

    This article describes and assesses the effectiveness of a 3-yr, laboratory-based summer science program to improve the academic performance of inner-city high school students. The program was designed to gradually introduce such students to increasingly more rigorous laboratory experiences in an attempt to interest them in and model what "real"…

  19. Enhancing University Summer Session Programs: The Role and Effect of Visiting Faculty

    ERIC Educational Resources Information Center

    Heinz, Anne K.; Lewis, Alcinda C.

    2009-01-01

    Many college and university summer session deans and directors face significant challenges in providing quality summer courses. At research institutions, for example, the number of regular tenured and tenure-track faculty who want to focus on research, scholarship, and other activities during summer, affects the composition of the summer session…

  20. Computer Summer Camp.

    ERIC Educational Resources Information Center

    Zabinski, Toby F.; Zabinski, Michael P.

    1979-01-01

    Describes the objectives, organization, and daily activities of a youth summer camp program providing general knowledge about computers, computing, social implications of computers, and opportunities for careers. (CMV)

  1. An evaluation of the 1997 JPL Summer Teacher Enhancement Program

    SciTech Connect

    Slovacek, Simeon P.; Doyle-Nichols, Adelaide R.

    1997-10-20

    There were two major components in the Jet Propulsion Laboratory (JPL) Summer Teacher Enhancement Project (STEP). First, the Summer Institute was structured as a four-week, 4-credit-unit University course for middle school science teachers, and consisted of workshops, lectures, labs, and tours as activities. The second component consists of follow-up activities related to the summer institute's contents, and again is structured as a University credit-bearing course for participants to reinforce their summer training. Considerable information from the comments and course ratings as given by the participants is included.

  2. Summer Program of Reading and Mathematics for Handicapped Pupils in Special Education Classes (Neurologically Impaired - Emotionally Handicapped, Emotionally Handicapped - A and B Classes, Neurologically Impaired and/or Severely Physically Handicapped, and the Demonstration Classes for the Teacher Training Institute). Summer 1975. Evaluation Report.

    ERIC Educational Resources Information Center

    Abordo, Enrique J.

    Evaluated was a summer program in reading and mathematics for handicapped pupils in special education classes designed to maintain and improve these skills through individualized and small group instruction. Initial diagnostic testing using criterion-referenced tests indicated target areas for basic skills instruction, which was implemented…

  3. Support and utilization of the LSI-11 processor family at SLAC

    SciTech Connect

    Kieffer, J.; Logg, C.A.; Farwell, D.E.

    1981-01-01

    Microcomputer systems based on the DEC LSI-11 processor family have been in use at SLAC for five years. They are used for a wide variety of applications. The support of these systems is divided into three general areas: engineering, maintenance, and software. Engineering specifies the system to match user requirements. SLAC has been able to design one general purpose system which can be tailored to fit many specific requirements. Maintenance provides system and component diagnostic services and repair. Software support includes software consulting services, assistance in systems design, and the development and support of special purpose operating systems and programs. These support functions are handled as subtasks by three teams in the SLAC Electronics Instrumentation Group. Each of these teams utilizes several LSI-11 systems in the performance of its primary tasks. They work closely together to jointly provide overall support for the larger SLAC community.

  4. New drift chamber for the Mark II detector at the SLAC Linear Collider

    SciTech Connect

    Burchat, P.R.; Hanson, G.G.; Sadrozinski, H.F.W.

    1984-10-01

    The design of the new cylindrical drift chamber for the Mark II detector at the SLAC Linear Collider is described. Prototype tests to determine the working parameters of the chamber and to study possible gas mixtures are discussed.

  5. Homologue Structure of the SLAC1 Anion Channel for Closing Stomata in Leaves

    SciTech Connect

    Y Chen; L Hu; M Punta; R Bruni; B Hillerich; B Kloss; B Rost; J Love; S Siegelbaum; W Hendrickson

    2011-12-31

    The plant SLAC1 anion channel controls turgor pressure in the aperture-defining guard cells of plant stomata, thereby regulating the exchange of water vapour and photosynthetic gases in response to environmental signals such as drought or high levels of carbon dioxide. Here we determine the crystal structure of a bacterial homologue (Haemophilus influenzae) of SLAC1 at 1.20 {angstrom} resolution, and use structure-inspired mutagenesis to analyse the conductance properties of SLAC1 channels. SLAC1 is a symmetrical trimer composed from quasi-symmetrical subunits, each having ten transmembrane helices arranged from helical hairpin pairs to form a central five-helix transmembrane pore that is gated by an extremely conserved phenylalanine residue. Conformational features indicate a mechanism for control of gating by kinase activation, and electrostatic features of the pore coupled with electrophysiological characteristics indicate that selectivity among different anions is largely a function of the energetic cost of ion dehydration.

  6. Summer Program Aims to Improve Literacy Skills of Black Male Teens

    ERIC Educational Resources Information Center

    West, Cassandra

    2012-01-01

    In this article, the author talks about a summer program at the African American Adolescent Male Summer Literacy Institute which aims to improve literacy skills of black male teens. The African American Adolescent Male Summer Literacy Institute is now in its fourth year at the University of Illinois-Chicago (UIC). Alfred Tatum, director of the…

  7. Intensity Effects of the FACET Beam in the SLAC Linac

    SciTech Connect

    Decker, F.-J.; Lipkowitz, N.; Sheppard, J.; White, G.R.; Wienands, U.; Woodley, M.; Yocky, G.; /SLAC

    2012-07-03

    The beam for FACET (Facility for Advanced aCcelerator Experimental Tests) at SLAC requires an energy-time correlation ('chirp') along the linac, so it can be compressed in two chicanes, one at the midpoint in sector 10 and one W-shaped chicane just before the FACET experimental area. The induced correlation has the opposite sign to the typical used for BNS damping, and therefore any orbit variations away from the center kick the tail of the beam more than the head, causing a shear in the beam and emittance growth. Any dispersion created along the linac has similar effects due to the high (>1.2% rms) energy spread necessary for compression. The initial huge emittances could be reduced by a factor of 10, but were still bigger than expected by a factor of 2-3. Normalized emittance of 3 {micro}m-rad in Sector 2 blew up to 150 {micro}m-rad in Sector 11 but could be reduced to about 6-12 {micro}m-rad, for the vertical plane although the results were not very stable. Investigating possible root causes for this, we found locations where up to 10 mm dispersion was created along the linac, which were finally verified with strong steering and up to 7 mm settling of the linac accelerator at these locations.

  8. SLAC P2 Marx Control System and Regulation Scheme

    SciTech Connect

    MacNair, David; Kemp, Mark A.; Macken, Koen; Nguyen, Minh N.; Olsen, Jeff; /SLAC

    2011-05-20

    The SLAC P2 MARX Modulator consists of 32 cells charged in parallel by a -4 kV supply and discharged in series to provide a -120 kV 140 amp 1.7 millisecond pulse. Each cell has a 350 uF main storage capacitor. The voltage on the capacitor will droop approximately 640 volts during each pulse. Each cell will have a boost supply that can add up to 700 V to the cell output. This allows the output voltage of the cell to remain constant within 0.1% during the pulse. The modulator output voltage control is determined by the -4 kV charging voltage. A voltage divider will measure the modulator voltage on each pulse. The charging voltage will be adjusted by the data from previous pulses to provide the desired output. The boost supply in each cell consists of a 700 V buck regulator in series with the main capacitor. The supply uses a lookup table for PWM control. The lookup table is calculated from previous pulse data to provide a constant cell output. The paper will describe the modulator and cell regulation used by the MARX modulator. Measured data from a single cell and three cell string will be included.

  9. Progress at SLAC on high-power rf pulse compression

    SciTech Connect

    Wilson, P.B.; Farkas, Z.D.; Lavine, T.L.; Menegat, A.; Nantista, C.; Ruth, R.D. ); Kroll, N.M. California Univ., San Diego, La Jolla, CA . Dept. of Physics)

    1992-06-01

    Rf pulse compression is a technique for augmenting the peak power output of a klystron (typically 50--100 MW) to obtain the high peak power required to drive a linear collider at a high accelerating gradient (typically 200 MW/m is required for a gradient of 100 MV/m). The SLED pulse compression system, with a power gain of about 2.6, has been operational on the SLAC linac for more than a decade. Recently, a binary pulse-compression system with a power gain of about 5.2 has been tested up to an output power of 120 MW. Further high-power tests are in progress. Our current effort is focused on prototyping a so-called SLED-II pulse-compression system with a power gain of four. Over-moded TE[sub 01]-mode circular waveguide components, some with novel technical features, are used to reduce losses at the 11.4-GHz operating frequency.

  10. Progress at SLAC on high-power rf pulse compression

    SciTech Connect

    Wilson, P.B.; Farkas, Z.D.; Lavine, T.L.; Menegat, A.; Nantista, C.; Ruth, R.D.; Kroll, N.M. |

    1992-06-01

    Rf pulse compression is a technique for augmenting the peak power output of a klystron (typically 50--100 MW) to obtain the high peak power required to drive a linear collider at a high accelerating gradient (typically 200 MW/m is required for a gradient of 100 MV/m). The SLED pulse compression system, with a power gain of about 2.6, has been operational on the SLAC linac for more than a decade. Recently, a binary pulse-compression system with a power gain of about 5.2 has been tested up to an output power of 120 MW. Further high-power tests are in progress. Our current effort is focused on prototyping a so-called SLED-II pulse-compression system with a power gain of four. Over-moded TE{sub 01}-mode circular waveguide components, some with novel technical features, are used to reduce losses at the 11.4-GHz operating frequency.

  11. Celebrate Summer with Reading

    ERIC Educational Resources Information Center

    Texley, Juliana

    2007-01-01

    School is out and the summer is full of both official and unofficial holidays that prompt us to enjoy science and the profession of sharing it. As in past years, the reviewers and editors of "NSTA Recommends"--ready and willing to share their enthusiasm for reading with you--have been gathering suggestions for the summer. So along with your beach…

  12. Book Your Summer Vacation

    ERIC Educational Resources Information Center

    Texley, Juliana

    2012-01-01

    Summer's the time for teachers to travel, not only physically from the confines of the classroom to exotic places, but vicariously, through the magic of books. Summer adventures help teachers expand their experience and enrich their store of context so that they can offer their students more when school resumes in the fall. That's why each year…

  13. Your Best Summer Ever

    ERIC Educational Resources Information Center

    Cleaver, Samantha

    2012-01-01

    "It must be nice to have summers off." Only other teachers know just how short summer is, with much of August devoted to planning for the new school year. This article offers 17 fresh ideas for exploring, making money, and preparing for next year. Plus, a reading list that hits all the marks!

  14. Book Your Summer Vacation

    ERIC Educational Resources Information Center

    Texley, Juliana

    2012-01-01

    Summer's the time for teachers to travel, not only physically from the confines of the classroom to exotic places, but vicariously, through the magic of books. Summer adventures help teachers expand their experience and enrich their store of context so that they can offer their students more when school resumes in the fall. That's why each year…

  15. Under Summer Skies

    ERIC Educational Resources Information Center

    Texley, Juliana

    2009-01-01

    There's no better way to celebrate 2009, the International Year of Astronomy, than by curling up with a good book under summer skies. To every civilization, in every age, the skies inspired imagination and scientific inquiry. There's no better place to start your summer reading than under their influence. Here are a few selections identified by…

  16. Celebrate Summer with Reading

    ERIC Educational Resources Information Center

    Texley, Juliana

    2007-01-01

    School is out and the summer is full of both official and unofficial holidays that prompt us to enjoy science and the profession of sharing it. As in past years, the reviewers and editors of "NSTA Recommends"--ready and willing to share their enthusiasm for reading with you--have been gathering suggestions for the summer. So along with your beach…

  17. ABC SUMMER PROGRAM, 1967.

    ERIC Educational Resources Information Center

    KERR, FRANCES M.; RUSSELL, VALERIE E.

    THE THIRD SUMMER (1967) OF THE MT. HOLYOKE COLLEGE RESIDENTIAL SUMMER PROGRAM FOR ABLE, DISADVANTAGED HIGH SCHOOL GIRLS IS DESCRIBED. BECAUSE OF A DRASTIC CUT IN SCHOLARSHIP FUNDS, THE PROGRAM WAS FORCED TO CHANGE FROM ITS ORIGINAL PLAN TO PREPARE THESE GIRLS FOR ADMISSION TO PRIVATE SCHOOLS. INSTEAD, THE PROGRAM OFFERED COLLEGE PREPARATION AND…

  18. School Construction Summer Slam

    ERIC Educational Resources Information Center

    Jensen, Richard F.

    2012-01-01

    Every school has a list of renovations, upgrades and repairs that need attention, but many are too distracting and disruptive to carry out during the school year. Often, the best time to address these nagging construction projects is during the summer when students are on break and the campus is quieter. Although these "summer slammers" often are…

  19. Science in the Summer.

    ERIC Educational Resources Information Center

    Redmond, Alan

    2000-01-01

    Describes a summer program called Science in the Summer (SitS). The goal of this 9-year program is to encourage students to engage in science learning. Presents beginner and advanced level activities focusing on chemistry and engineering. Summarizes student evaluations on the program along with a breakdown of the SitS 1999 program. (SAH)

  20. A Summer Doorway to Science Careers.

    ERIC Educational Resources Information Center

    Michalek, Arthur M.; And Others

    1986-01-01

    Provides an overview of the Roswell Park Memorial Institute Summer Science Program for high ability students with strong scientific and mathematical backgrounds. Discusses the participants perceptions of the benefits of this program and reports data related to participants' college majors. (ML)

  1. A Metacognitive Pedagogy: The River Summer Project

    ERIC Educational Resources Information Center

    Son, Lisa K.; Kenna, Timothy; Pfirman, Stephanie

    2007-01-01

    This article describes River Summer, an interdisciplinary, field project on the Hudson River. Using cognitive data, the team aimed to design an experience that fostered an environment implementing strategies that improve learning. The participants, 40 faculty members from 24 institutions who acted as teachers, students, or both, boarded the…

  2. Summer Programs Offer Great Ideas for Teachers

    ERIC Educational Resources Information Center

    Pantin, Travis

    2007-01-01

    Every summer, with financial support from the National Endowment for the Humanities (NEH), more than 2,500 teachers from across the U.S. participate in advanced study programs in the humanities that range from one to six weeks in length. Most of the programs are conducted at institutions of higher learning, both within the U.S. and abroad, and…

  3. Summer Programs Offer Great Ideas for Teachers

    ERIC Educational Resources Information Center

    Pantin, Travis

    2007-01-01

    Every summer, with financial support from the National Endowment for the Humanities (NEH), more than 2,500 teachers from across the U.S. participate in advanced study programs in the humanities that range from one to six weeks in length. Most of the programs are conducted at institutions of higher learning, both within the U.S. and abroad, and…

  4. NIH Quickfinder and NIH MedlinePlus Advisory Group - Summer 2009

    MedlinePLUS

    ... Current Issue Past Issues NIH Quickfinder Past Issues / Summer 2009 Table of Contents For an enhanced version ... Institute of Arthritis and Musculoskeletal and Skin Diseases Summer 2009 Issue: Volume 4 Number 3 Page 29

  5. Commissioning a Helium II Test Facility at SLAC

    SciTech Connect

    Katz, A.

    2004-09-03

    Liquid helium is the only fluid that exhibits the unique properties characteristic of a superfluid when cooled to temperatures near absolute zero. This superfluid helium state is commonly referred to as He II. Among the many odd properties are a vanishingly small viscosity and a high effective thermal conductivity. A He II test facility will provide researchers in the Experimental Facilities Department at SLAC with the opportunity to do research in the superfluid range with relative ease. The nature of this project is to test the functionality of the existing helium components in the cryogenics lab and recommend improvements. The basic experimental setup consisted of a helium dewar, a vacuum pump system, and a network of sensors. After adding liquid helium into the dewar and turning on the vacuum pump, we observed that the pump was able to reduce the pressure down comfortably into the superfluid state. Furthermore, by adding heat to the fluid in set increments we learned what amount of heat could be added while still keeping the helium in the superfluid range. Our final test was to see if we had the ability to change the pressure via the MKS exhaust valve controller. The controller failed miserably and was found to be inadequate for the type of experiments to be done. Among the other recommended improvements were: adding isolation valves to the vacuum pump line, erecting a supply line for clean helium gas, incorporating a relief valve in the helium recovery line, and documenting the existing vent and vacuum lines. Once these improvements are made, the He II test facility should be up and running, allowing researchers to dive as deep as they please into the superfluid state.

  6. Final Design of the SLAC P2 Marx Klystron Modulator

    SciTech Connect

    Kemp, M.A.; Benwell, A.; Burkhart, C.; Larsen, R.; MacNair, D.; Nguyen, M.; Olsen, J.; /SLAC

    2011-11-08

    The SLAC P2 Marx has been under development for two years, and follows on the P1 Marx as an alternative to the baseline klystron modulator for the International Linear Collider. The P2 Marx utilizes a redundant architecture, air-insulation, a control system with abundant diagnostic access, and a novel nested droop correction scheme. This paper is an overview of the design of this modulator. There are several points of emphasis for the P2 Marx design. First, the modulator must be compatible with the ILC two-tunnel design. In this scheme, the modulator and klystron are located within a service tunnel with limited access and available footprint for a modulator. Access to the modulator is only practical from one side. Second, the modulator must have high availability. Robust components are not sufficient alone to achieve availability much higher than 99%. Therefore, redundant architectures are necessary. Third, the modulator must be relatively low cost. Because of the large number of stations in the ILC, the investment needed for the modulator components is significant. High-volume construction techniques which take advantage of an economy of scale must be utilized. Fourth, the modulator must be simple and efficient to maintain. If a modulator does become inoperable, the MTTR must be small. Fifth, even though the present application for the modulator is for the ILC, future accelerators can also take advantage of this development effort. The hardware, software, and concepts developed in this project should be designed such that further development time necessary for other applications is minimal.

  7. IISME Summer Fellowship Program

    NASA Technical Reports Server (NTRS)

    1998-01-01

    During the summer of 1997, NASA-Ames scientists served as mentors to six teachers who worked as IISME (Industry Initiatives for Science and Math Education) Teacher Fellows over the summer. These six teachers were among 91 IISME Teacher Fellows working at various corporate, government agency, and university sites throughout the San Francisco Bay Area. These NASA-Ames fellowship positions are described in brief. One requirement of the IISME Summer Fellowship program is that teachers develop a personal Action Plan for classroom transfer. These Action Plans are published in abstract form in an annual catalog. I have also attached the abstracts of NASA-Ames teachers.

  8. Summer Success Story.

    ERIC Educational Resources Information Center

    Matika, Francis W.

    1994-01-01

    Pennsylvania's Beaver Valley Intermediate Unit built a collaborative 2-week summer academy, opening it to students in the other 14 school districts in the county. Cooperation among all the districts provided students opportunities for expanded learning experiences. (MLF)

  9. The Purdue Summer Internship

    ERIC Educational Resources Information Center

    Hamilton, William; And Others

    1976-01-01

    Describes a program in which college agricultural education majors between their junior and senior years are placed with vocational agriculture teachers to gain experience in conducting a summer vocational agriculture program. (HD)

  10. Cashing In on Summer.

    ERIC Educational Resources Information Center

    Instructor, 1980

    1980-01-01

    Suggests ways teachers can use their talents and expertise to create jobs for themselves that supply extra income during the summer. These "moonlighting" ideas include tutoring, giving guided tours, planning weddings, and starting exercise classes. (SJL)

  11. Chemical Physics Summer School

    SciTech Connect

    2002-06-28

    The Gordon Research Conference (GRC) on Chemical Physics Summer School was held at Roger Williams University, Bristol, RI. Emphasis was placed on current unpublished research and discussion of the future target areas in this field.

  12. Essay: Bob Siemann-SLC Days at SLAC

    SciTech Connect

    Raubenheimer, Tor O.; /SLAC

    2011-11-14

    Bob Siemann was a great experimentalist and an excellent teacher.We will greatly miss him. Bob came to SLAC in early 1991 to work on the Stanford Linear Collider (SLC). The SLC was a challenging accelerator which began operating in the late 1980's but still had numerous obstacles to be overcome years into operation. One of the compounding difficulties was making reproducible measurements, since the stability of the collider was poor and the diagnostics were insufficient. Bob dove into this challenge and helped design experiments and diagnostics that provided further clarity. I first got to know Bob while I was still a graduate student, trying to finish my thesis and performing some experimental studies on the SLC, which, at the time, was proving to be very difficult. Most of my expertise had been in beam theory and simulation. Dealing with the real issues of the accelerator was challenging. Bob helped me understand the difference between systematic and statistical errors, and separate operational issues from the fundamental physics. His way of teaching was not to provide an explanation but to ask enough questions so that I could find the answer on my own - this was the best way to learn. I later asked Bob to be a reader on my thesis. As in all things, he took this role extremely seriously. He read through the draft and marked every page to the point where I was regretting my decision. However, his questions again helped me understand my own work better and greatly improved my thesis. Bob was also the de facto leader of an effort focused on the damping rings and the bunch compressors. He was great to work with. He made people think for themselves and refused to simply provide answers. He also worked hard himself, expressing real interest and curiosity. After the studies of the SLC damping rings identified a sawtooth instability due to the vacuum chamber impedance as a source of many downstream fluctuations, Bob took charge of upgrading the rings. As part of this program, I suggested an extensive upgrade that also replaced the dipoles with combined function magnets which might have reduced the horizontal emittance another factor of 3. Although he was extremely busy, Bob helped me develop the proposal and understand the magnetic limitations as well as the potential impacts on the beam dynamics. He helped me consider issues well beyond my initial scope. While the proposal never went anywhere and I think Bob had been aware that there was no funding to pursue the option, he saw that it would be a great learning experience for me and it was. In the early 1990's I had simulated a new regime for the beam-ion instability and, with Frank Zimmermann, I developed a model for the effect which was predicted to occur within the high current, low emittance bunch trains in future storage rings or linear colliders. I thought this was pretty good work but Bob convinced me that the next step had to be confirming the theory with measurements. Because the growth rate was inversely dependent on beam sizes and proportional to the vacuum pressure, measurements required significantly increasing the vacuum pressure in existing facilities. Most people discounted trying such an experiment, but with Bob's urging and suggestions and John Byrd's excitement, we managed to make the measurements at the Advanced Light Source (ALS) at Berkeley. By the mid-1990's Bob was completely focused on advanced acceleration concepts and I was not interacting with him as often. At the time, SLAC was putting together a large effort in designing and documenting a design for the Next Linear Collider (NLC) while constructing the NLC Test Accelerator. Bob was worried that a straightforward extrapolation of the microwave technology would be difficult to bring to fruition because of the cost. He wanted to focus on more cost-effective approaches that could enable future accelerators for high energy physics. As usual, he was correct. The experimental programs that he started in direct laser acceleration and plasma-wakefield acceleration have made great progress. He accomplished this with lots of hard work and by engaging the people around him, especially students and postdocs. In the process, he created a group of extremely talented people which has enabled these technologies to be developed to the point where it seems likely that they are viable and will offer two cost-effective approaches to high-gradient acceleration.

  13. Making Summer Count: How Summer Programs Can Boost Children's Learning

    ERIC Educational Resources Information Center

    McCombs, Jennifer Sloan; Augustine, Catherine; Schwartz, Heather; Bodilly, Susan; McInnis, Brian; Lichter, Dahlia; Cross, Amanda Brown

    2012-01-01

    During summer vacation, many students lose knowledge and skills. By the end of summer, students perform, on average, one month behind where they left off in the spring. Participation in summer learning programs should mitigate learning loss and could even produce achievement gains. Indeed, educators and policymakers increasingly promote summer

  14. Polarization studies of strained GaAs photocathodes at the SLAC Gun Test Laboratory

    SciTech Connect

    Saez, P.; Alley, R.; Clendenin, J.; Frisch, J.; Kirby, R.; Mair, R.; Maruyama, T.; Miller, R.; Mulhollan, G.; Prescott, C.

    1995-08-01

    The SLAC Gun Test Laboratory apparatus, the first two meters of which is a replica of the SLAC injector, is used to study the production of intense, highly-polarized electron beams required for the Stanford Linear Collider and future linear colliders. The facility has been upgraded with a Mott polarimeter in order to characterize the electron polarization from photocathodes operating in a DC gun. In particular, SLAC utilizes p-type, biaxially strained GaAs photocathodes which have produced longitudinal electron polarizations greater than 80% while yielding pulses of 5 A/sq cm at an operating voltage of 120 kV. Among the experiments performed include studying the influences of the active layer thickness, temperature, quantum efficiency and cessation on the polarization. The results might help to develop strained photocathodes with higher polarization.

  15. SLAC R and D toward a TeV Linear Collider

    SciTech Connect

    Wilson, P.B.

    1988-10-01

    At CERN, KEK, Novosibirsk and SLAC, serious thought is being given to the design of linear colliders in the 0.5--2.0 TeV center-of-mass energy range. This paper reviews current progress at SLAC toward the design of such a collider. No attempt is made here to summarize ongoing work at the other laboratories. However, research on linear colliders is clearly an international effort, and success at SLAC will be greatly expedited by communication and cooperation with other laboratories in the US and abroad. In addition to major programs at the laboratories mentioned above, contributions relevant to linear collider design are being made at DESY, LAL (Orsay), LBL, LLNL and elsewhere. 49 refs., 6 tabs.

  16. High voltage pulse cable and connector experience in the kicker systems at SLAC

    SciTech Connect

    Harris, K.; Artusy, M.; Donaldson, A.; Mattison, T.

    1991-05-01

    The SLAC 2-mile linear accelerator uses a wide variety of pulse kicker systems that require high voltage cable and connectors to deliver pulses from the drivers to the magnet loads. Many of the drivers in the SLAC kicker systems use cable lengths up to 80 feet and are required to deliver pulses up to 40 kV, with rise and fall time on the order of 20 ns. Significant pulse degradation from the cable and connector assembly cannot be tolerated. Other drivers are required to deliver up to 80 kV, 20 {mu}s pulses over cables 20 feet long. Several combinations of an applicable high voltage cable and matching connector have been used at SLAC to determine the optimum assembly that meets the necessary specifications and is reliable. 14 refs., 3 figs., 1 tab.

  17. Initial Testing of the Mark-0 X-Band RF Gun at SLAC

    SciTech Connect

    Vlieks, Arnold; Adolphsen, C.; Dolgashev, V.; Lewandowski, J.; Limborg, Cecile; Weathersby, S.; /SLAC

    2012-06-06

    A new X-band RF gun (Mark-0) has been assembled, tuned and was tested in the ASTA facility at SLAC. This gun has been improved from an earlier gun used in Compton-scattering experiments at SLAC by the introduction of a racetrack dual-input coupler to reduce quadrupole fields. Waveguide-to-coupler irises were also redesigned to reduce surface magnetic fields and therefore peak pulse surface heating. Tests of this photocathode gun will allow us to gain early operational experience for beam tests of a new gun with further improvements (Mark-1) being prepared for SLAC's X-Band Test Area (XTA) program and the LLNL MEGa-ray program. Results of current testing up to {approx} 200 MV/m peak surface Electric fields are presented.

  18. 76 FR 57068 - National Institute of Nursing Research Notice of Closed Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-15

    ... HUMAN SERVICES National Institutes of Health National Institute of Nursing Research Notice of Closed... of Committee: National Institute of Nursing Research Special Emphasis Panel, Summer Research... Officer, National Institute of Nursing Research, National Institutes of Health, Bethesda, MD 20892,...

  19. 76 FR 10912 - National Institute of Nursing Research; Notice of Closed Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-28

    ... HUMAN SERVICES National Institutes of Health National Institute of Nursing Research; Notice of Closed... of Committee: National Institute of Nursing Research Special Emphasis Panel, Summer Research... Officer, National Institute of Nursing Research, National Institutes of Health, 6701 Democracy Blvd,...

  20. Summer faculty fellowship program, 1984

    NASA Technical Reports Server (NTRS)

    Spencer, J. H. (Compiler)

    1984-01-01

    Since 1964, the National Aeronautics and Space Administration (NASA) has supported a program of summer faculty fellowships for engineering and science educators. In a series of collaborations between NASA research and development centers and nearby universities, engineering faculty members spend 10 or 11 weeks working with professional peers on research. The Summer Faculty Program Committee of the American Society of Engineering Education supervises the programs. Objectives: (1) to further the professional knowledge of a qualified between participants and NASA; (3) to enrich and refresh the research and teaching activities of participants institutions; and (4) to contribute to the research objectives of the NASA center. Program Description: College or university faculty members will be appointed as research fellows to spend 10 weeks in cooperative research and study at the NASA-Langley Research Center. The fellow will devote approximately 90 percent of the time to a research problem and the remaining time to a study program. The study program will consist of lectures and seminars on topics of general interest or that are directly relevant to the fellow's research project. The lecturers and seminar leaders will be distinguished scientists and engineers from NASA, education, or industry.

  1. [Regional University Administrators Institute.

    ERIC Educational Resources Information Center

    Northern Michigan Univ., Marquette.

    The primary objective of the Regional University Administrator's Institute held at Northern Michigan University in the summer of 1970 was to analyze communication dilemmas between hierarchical positions and construct a heuristic model of a higher education administrative communication and decisionmaking process. There is growing evidence of…

  2. Electroweak Radiative Corrections to the Parity-violating Asymmetry for SLAC Experiment E158

    SciTech Connect

    Zykunov, Vladimir A.; /Gomel State Tech. U.

    2012-04-04

    Electroweak radiative corrections to observable quantities of Moeller scattering of polarized particles are calculated. We emphasize the contribution induced by infrared divergent parts of cross section. The covariant method is used to remove infrared divergences, so that our results do not involve any unphysical parameters. When applied to the kinematics of SLAC E158 experiment, these corrections reduce the parity violating asymmetry by about -6.5% at E = 48 GeV and y = 0.5, and kinematically weighted 'hard' bremsstrahlung effect for SLAC E158 is {approx} 1%.

  3. Using The SLAC Two-Mile Accelerator for Powering an FEL

    SciTech Connect

    Barletta, W.A.; Sessler, A.M.; Yu, L.H.; /Brookhaven

    2012-06-29

    A parameter survey is made, employing the recently developed 2D formalism for an FEL, of the characteristics of an FEL using the SLAC accelerator. Attention is focused upon a wavelength of 40 {angstrom} (the water window) and 1 {angstrom} case is also presented. They consider employing the SLAC linac with its present operating parameters and with improved parameters such as would be supplied by a new photo-cathode injector. They find that improved parameters are necessary, but that the parameters presently achieved with present-day photo-cathode guns are adequate to reach the water window.

  4. Summer research programs.

    PubMed

    Sutliff, Roy L

    2011-12-01

    A summer research experience is an excellent opportunity for undergraduate students to gain valuable research experience. With a little bit of planning, students can become familiar with the research area in which they are interested and begin to make connections with experts in the field. Time spent discussing goals for the project can yield peer-reviewed abstracts and publications. As a result, an application to graduate school can be greatly improved by a summer research experience, and students can have more options to consider as they embark on graduate training. PMID:22256733

  5. The University of Alabama at Birmingham Center for Community OutReach Development Summer Science Institute Program: A 3-Yr Laboratory Research Experience for Inner-City Secondary-Level Students

    PubMed Central

    2004-01-01

    This article describes and assesses the effectiveness of a 3-yr, laboratory-based summer science program to improve the academic performance of inner-city high school students. The program was designed to gradually introduce such students to increasingly more rigorous laboratory experiences in an attempt to interest them in and model what “real” science is like. The students are also exposed to scientific seminars and university tours as well as English and mathematics workshops designed to help them analyze their laboratory data and prepare for their closing ceremony presentations. Qualitative and quantitative analysis of student performance in these programs indicates that participants not only learn the vocabulary, facts, and concepts of science, but also develop a better appreciation of what it is like to be a “real” scientist. In addition, the college-bound 3-yr graduates of this program appear to be better prepared to successfully academically compete with graduates of other high schools; they also report learning useful job-related life skills. Finally, the critical conceptual components of this program are discussed so that science educators interested in using this model can modify it to fit the individual resources and strengths of their particular setting. PMID:15526064

  6. NEWS: AAPT Summer Meeting

    NASA Astrophysics Data System (ADS)

    Mellema, Steve

    2000-11-01

    The 2000 Summer Meeting of the American Association of Physics Teachers (AAPT) was held from 28~July-2~August at the University of Guelph in Ontario, Canada. Despite somewhat rainy weather throughout the week, the annual gathering was an enjoyable one, filled with interesting talks on the state of physics education in North America. Using a new scheduling format for the summer meeting, all of the paid workshops and tutorials were held on Saturday and Sunday 29-30 July. The invited and contributed papers for the main AAPT meeting were then presented on Monday, Tuesday and Wednesday. As had been done in 1999 in San Antonio, a two-day tandem meeting dedicated to Physics Education Research (PER) was held on Wednesday and Thursday 2-3 August, immediately after the main AAPT meeting. Over the three days of the main meeting, 60 sessions were held under the sponsorship of various AAPT committees. These included sessions (numbers in parentheses) organized by the committees on Apparatus (1), Astronomy Education (3), Awards (2), Computers (5), Graduate Education (2), High Schools (1), History and Philosophy (1), Instructional Media (3), International Education (1), Laboratories (2), Pre-High School Education (2), Programs (4), Professional Concerns (6), Research in Physics Education (8), Science Education for the Public (2), Two-Year Colleges (5), Undergraduate Education (7) and Women in Physics (4). Figure 1. Guelph Church of Our Lady. The main meeting opened on Sunday evening with an invited lecture by Dr John J Simpson from the host institution, the University of Guelph, describing the Sudbury Neutrino Observatory. At the ceremonial session that began the activities on Monday morning, recognition was given to Clifford Swartz for his almost 30 years of service as Editor of the AAPT journal, The Physics Teacher. This was followed by an invited talk by Jim Nelson from Seminole County Public School in Florida, who received the Excellence in Pre-College Teaching Award. The session concluded with the talk by this year's award winner for Excellence in Introductory College teaching, Dr Dwight Neuenschwander from Southern Nazarene University in Oklahoma. Dwight's talk, invoking both Charles Dickens' A Christmas Carol and Robert Pirsig's Zen and the Art of Motorcycle Maintenance, was memorable for clarifying both the connections and the differences between physics and physics teaching. At a second ceremonial session on Tuesday, Terrence Walker of The Ohio State University gave the Klopsteg Memorial Lecture, entitled The Big Bang: Seeing Back to the Beginning. This was followed by the presentation of the Robert A Millikan Award Lecture - Beauty in Physics and the Arts, by Thomas Rossing of Northern Illinois University. Over the years Tom has made many contributions to the teaching of the physics of sound and music, and his lecture made wonderful connections between physics and the arts. At the first plenary session on Monday, Dr Elaine Seymour, a sociologist from the University of Colorado, gave a talk entitled: We Know Science Majors Are Lost Because of Poor Teaching, But Why Do They Resist Our Efforts To Improve Their Learning Experience? She described students' responses and resistance to the implementation of active-learning methods. The talk was thought-provoking, particularly when so many other talks at this meeting described new attempts to incorporate such methods in different educational settings. At the second plenary session on Wednesday, Eric Poisson from the University of Guelph gave a very interesting talk about Gravitational Wave Astronomy and the LIGO and VIRGO projects, including their theoretical motivation and expected experimental results. On Tuesday evening there was a very special show of physics demonstrations by the `Third Eye' group from China. Their presentations embody a very interesting philosophy. Each demonstration is designed to illustrate one or more basic concepts in physics in a way that will be both memorable and thought-provoking. Often these presentations have evolved, and at each stage their goal is to be able to accomplish the same demonstration with ever-simpler equipment. Given that we all live under financial constraints, the `third eye' refers to the ability to look around and find a useful piece of a demonstration apparatus amongst what others might perceive to be junk. All in all, it was a very stimulating and interesting presentation, and one can easily see why this group tours China to the rave reviews of the students there. As is true every year, the wealth of interesting and valuable work shared in the parallel sessions of contributed papers was astounding. As always, I found myself running from building to building in an attempt to hear as many talks as I could possibly attend. Often a colleague and I would split up to hear different talks, and then share what we'd learned over a meal later in the day. What follows are a few highlights of what we heard and saw in some of those sessions. As one would expect given the trend of recent years, there were many interesting talks about the incorporation of computers and instructional media in introductory physics teaching. Paris Naik from the University of Illinois presented a paper on their web-based Interactive Examples. These are very well thought-out homework problems that provide interactive help in the spirit of a Socratic dialogue. They can be viewed at webug.physics.uiuc.edu/courses/ie.html. Mario Belloni and Wolfgang Christian, both from Davidson College, each gave a talk on the use of Physlets, scriptable Java-based interactive physics problems. These can be sampled at webphysics.davidson.edu/physletprob. Ruth Chabay from Carnegie Mellon University presented the Visual Python real-time, three-dimensional graphics environment in which their first-year students are programming their own visualization of physical phenomena. Its power, ease of use and freeware usage make it a must-see at cil.andrew.cmu.edu/projects/visual. David Sokoloff (University of Oregon) and Priscilla Laws (Dickinson College) led a discussion session on the Interactive Lecture Demonstrations that they have been developing to promote active learning in the classroom. Loren Winters of the North Carolina School of Science and Mathematics showed some very fine work done with digital video cameras, both in producing motion videos for frame-by-frame analysis and in producing still images of high-speed phenomena. Finally, Patrick Tam of Humboldt State University in California talked about the Multimedia Resource for Learning and Online Teaching (MERLOT), a project to organize and review the proliferation of internet-based teaching materials that are rapidly becoming available. Their purpose is to make it easier for teachers like us to sift through the plethora of new innovations, to locate those that are potentially useful in our teaching, and finally to implement them effectively. You can check out the project on the web at www.merlot.org. As is evident from the number of sessions of contributed papers and the tandem conference, the quality and quantity of physics education research into new curricula and teaching methods continue to increase. A number of interesting areas were discussed including interactive lecture techniques, studio-classroom approaches combining lectures and labs, assessment techniques, and identifying and correcting student misconceptions. In addition to the plenary talks on current research topics in physics mentioned above, there were sessions on Space Physics and Hot Topics in Physics. There were sessions on professional and career concerns including Preparing Future Physics Faculty, New Faculty Experiences and Concerns, Balancing Career and Family, How Physics Topics Support the Job Market and Recruiting and Retaining Women in Physics. Whether one was a high school teacher or a university professor, this was an enjoyable and educational meeting. We all look forward to the Winter 2001 meeting from 6-11 January in San Diego, and to next summer's meeting from 21-25 July in Rochester, New York.

  7. Summer Opportunities for Students.

    ERIC Educational Resources Information Center

    Winds of Change, 2003

    2003-01-01

    Eleven summer internships, work experience programs, research opportunities, and courses are described. Some offer stipends. Some are specifically for American Indian, minority, disadvantaged, or disabled students in high school or college. Most are in science or engineering related fields. Each entry contains a brief program description,…

  8. My Summer Vacation

    ERIC Educational Resources Information Center

    Galus, Pamela

    2010-01-01

    In this article, a science teacher from the Midwest reflects on her summer vacation to the Gulf of Mexico. She felt that this vacation would help improve her teaching about the environmental problems in the gulf and elsewhere. After all, anyone can show photos of oil-laden birds and dead sea turtles and read news clips of a distant place, but to…

  9. Books for Summer Reading.

    ERIC Educational Resources Information Center

    Phi Delta Kappan, 1992

    1992-01-01

    Advises administrators to use their summers to relax and recharge their intellectual batteries. Reading suggestions include Edith Wharton's "House of Mirth," Charlotte Perkins Gilman's "The Yellow Wallpaper," Amy Tan's "Joy Luck Club," China Achebe's "Things Fall Apart," Paule Marshall's "The Chosen Place, the Timeless People," and numerous…

  10. Summer Reading That Inspires

    ERIC Educational Resources Information Center

    Texley, Juliana

    2012-01-01

    Why did you decide on science as a career? For many, it was the inspiration of a mentor or model--an explorer who could communicate excitement and a sense of adventure to others. During the school year, teachers take on that role of motivator for students. But as they recharge over summer break, it is great to treat themselves again to the stories…

  11. Summer Youth Report, 1999.

    ERIC Educational Resources Information Center

    Minnesota State Dept. of Economic Security, St. Paul.

    This document presents 1999 outcome information for Minnesota's Summer Youth Employment and Training Programs (SYETPs). The document begins with a summary of statewide outcome information for the SYETPs, which served a total of 4,644 youths under Job Training Partnership Act Title IIB and 2,993 youths through the Minnesota Youth Program at an…

  12. Waunakee's Summer Science Program.

    ERIC Educational Resources Information Center

    O'Neil, J. Peter

    1981-01-01

    Describes Waunakee Community School's six-week Summer Science Program for students entering the seventh grade. Students are selected for this science enrichment program on the basis of interest, ability, and maturity. Program content includes wetlands, forests, prairies, and animals, concluding with a camping trip. (DS)

  13. Summer Job Listings.

    ERIC Educational Resources Information Center

    Winds of Change, 1995

    1995-01-01

    Lists summer positions offered by various public agencies, corporations, and universities for high school, college and graduate students. Positions include internships, employment, and cooperative educational opportunities. Includes a brief description, required prerequisites, deadline and requirements for application, and contact person. Some…

  14. Books for Summer Reading.

    ERIC Educational Resources Information Center

    Phi Delta Kappan, 1996

    1996-01-01

    Suggests several novels for educators' summer reading enjoyment, including classics by Robert Pirsig, Robertson Davies, John Steinbeck, Albert Camus, and Charles Dickens. Educators might also read Alex Kotlowitz's "There Are No Children Here" (Doubleday, 1991) and Sharon Quint's "Schooling Homeless Children" (Teachers College Press, 1994) to gain…

  15. Summer Fish Camp.

    ERIC Educational Resources Information Center

    Remick, Dennis; Pulu, Tupou L.

    The booklet presents a description and illustrates, with photographs, the Eskimo lifestyle and the kinds of activities that occur at a summer fish camp on the Yukon River. Eleven suggested activities are listed for the teacher to present when using the booklet. Activities include studying the map of Alaska; tracing the life cycle of the fish;…

  16. Books for Summer Reading.

    ERIC Educational Resources Information Center

    [Editors

    2001-01-01

    Teachers and education professors suggest various nonfiction and fiction books for summer reading enjoyment, from Robert Putnam's "Bowling Alone," C.A. Bowers's "Let Them Eat Data," and Larry McMurtry's "Roads: Driving America's Great Highways" to Kent Hauf's "Plainsong, J.M. Coetzee's "Disgrace," and Michael Cunningham's "The Hours." (MLH)

  17. My Summer Vacation

    ERIC Educational Resources Information Center

    Galus, Pamela

    2010-01-01

    In this article, a science teacher from the Midwest reflects on her summer vacation to the Gulf of Mexico. She felt that this vacation would help improve her teaching about the environmental problems in the gulf and elsewhere. After all, anyone can show photos of oil-laden birds and dead sea turtles and read news clips of a distant place, but to…

  18. Summer Opportunities for Students.

    ERIC Educational Resources Information Center

    Winds of Change, 2003

    2003-01-01

    Eleven summer internships, work experience programs, research opportunities, and courses are described. Some offer stipends. Some are specifically for American Indian, minority, disadvantaged, or disabled students in high school or college. Most are in science or engineering related fields. Each entry contains a brief program description,…

  19. Summer Job Listings.

    ERIC Educational Resources Information Center

    Winds of Change, 1995

    1995-01-01

    Lists summer positions offered by various public agencies, corporations, and universities for high school, college and graduate students. Positions include internships, employment, and cooperative educational opportunities. Includes a brief description, required prerequisites, deadline and requirements for application, and contact person. Some…

  20. International Summer Programs.

    ERIC Educational Resources Information Center

    Cox, June

    1979-01-01

    The article describes five summer programs for gifted and talented students offered internationally. The programs outlined are workshops in the publication arts, a study of humanistic development; computer science, writing, and photography workshops; a language study; a historical/social study of English history; and a workshop on photography,…

  1. Best New Summer Books

    ERIC Educational Resources Information Center

    Trierweiler, Hannah; Cleaver, Samantha

    2007-01-01

    When a colleague and friend gives you a new kids' book and says, "You have to read this," you pay attention. That's why the author asked a team of top teachers and librarians to share new favorites for summer. Here are their picks for every reader, each bearing a teachers' stamp of approval.

  2. Summer by the Book

    ERIC Educational Resources Information Center

    Texley, Judiana

    2005-01-01

    Teachers are usually avid readers, but the pressures of the school year often prevent the sort of thoughtful professional development that a good book can provide. That's why a summer reading list is such a great option, to refresh and renew the scientist within. At the National Science Teachers Association (NSTA), a group of teachers works all…

  3. Summer Reading That Inspires

    ERIC Educational Resources Information Center

    Texley, Juliana

    2012-01-01

    Why did you decide on science as a career? For many, it was the inspiration of a mentor or model--an explorer who could communicate excitement and a sense of adventure to others. During the school year, teachers take on that role of motivator for students. But as they recharge over summer break, it is great to treat themselves again to the stories…

  4. Summer Roof Maintenance.

    ERIC Educational Resources Information Center

    Liscum, Curtis L.

    1999-01-01

    Presents the items to review in roofing maintenance to prepare for the impact of summer, including checking drainage, roof-field surface and membrane, flashings, sheet metal, and rooftop equipment, such as skylights and penthouses. A list of roofing facts facility managers should know are highlighted. (GR)

  5. Use Your Summer Wisely

    ERIC Educational Resources Information Center

    Vick, Julie Miller; Furlong, Jennifer S.

    2007-01-01

    Academics welcome summer with a collective sigh of relief. Finally they can get to those tasks that are nearly impossible to accomplish during a busy academic year: working on that manuscript, completing the revisions on an article, learning the new laboratory technique from the colleague across the hall. However, those going on the job market in…

  6. Books for Summer Reading.

    ERIC Educational Resources Information Center

    Phi Delta Kappan, 1991

    1991-01-01

    To help replenish educators' supply of ideas, "Kappan" editors suggest several books for summer reading, including many noncurrent titles not specifically on education such as Peter Novick's "That Noble Dream," Joy Kogawa's "Obasan," Zora Neale Hurston's "Their Eyes Were Watching God," Kate Chopin's "The Awakening," Willa Cather's "My Antonia,"…

  7. Active Healthy Summer

    ERIC Educational Resources Information Center

    Elliott, Eloise

    2005-01-01

    Summer break is almost here for most elementary teachers and students. Warmer weather and additional free time to make choices create more opportunities to be physically active, whether home alone or out with friends and family. This article describes ways by which physical education specialists can encourage students' physical activity by…

  8. Summer Reading Loss

    ERIC Educational Resources Information Center

    Mraz, Maryann; Rasinski, Timothy V.

    2007-01-01

    Summer reading loss is a documented reality for many students. It is often of greatest concern for those who are already at risk, who typically have limited access to reading materials at home and whose parents or caregivers may be reluctant or unsure of how to help. By raising parents' awareness of the importance of supporting their children's…

  9. Summer Is for Reading.

    ERIC Educational Resources Information Center

    Schacter, John

    2003-01-01

    Los Angeles children who attend the 8-week summer day camp spend 2 hours a day learning how to read. The rest of the time is spent playing sports, doing art activities, and taking field trips. The program is replicated in other school districts. (MLF)

  10. Books for Summer Reading.

    ERIC Educational Resources Information Center

    Phi Delta Kappan, 1993

    1993-01-01

    Recommends fine fiction for summer reading, including Nadine Gordimer's "My Son's Story" (1991), Lillian Smith's "Strange Fruit" (1944), Josephine Hart's "Damage" (1991), Jane Smiley's "A Thousand Acres" (1991), and George Eliot's "Middlemarch" (1874). Nonfiction suggestions include Harlan Lane's "Mask of Benevolence" (1992), Diane Ackerman's "A…

  11. Summer programming in rural communities: unique challenges.

    PubMed

    Phillips, Ruthellen; Harper, Stacey; Gamble, Susan

    2007-01-01

    During the past several decades, child poverty rates have been higher in rural than in urban areas, and now 2.5 million children live in deep poverty in rural America. Studies indicate that poor children are most affected by the typical "summer slide." Summer programming has the ability to address the issues of academic loss, nutritional loss, and the lack of safe and constructive enrichment activities. However, poor rural communities face three major challenges in implementing summer programming: community resources, human capital, and accessibility. The success of Energy Express, a statewide award-winning six-week summer reading and nutrition program in West Virginia, documents strategies for overcoming the challenges faced by poor, rural communities in providing summer programs. Energy Express (1) uses community collaboration to augment resources and develop community ownership, (2) builds human capital and reverses the acknowledged brain drain by engaging college students and community volunteers in meaningful service, and (3) increases accessibility through creative transportation strategies. West Virginia University Extension Service, the outreach arm of the land-grant institution, partners with AmeriCorps, a national service program, and various state and local agencies and organizations to implement a program that produces robust results. PMID:17623413

  12. Gifted Students' Perceptions of an Accelerated Summer Program and Social Support

    ERIC Educational Resources Information Center

    Lee, Seon-Young; Olszewski-Kubilius, Paula; Makel, Matthew C.; Putallaz, Martha

    2015-01-01

    Using survey responses from students who participated in the summer programs at two university-based gifted education institutions, this study examined changes in gifted students' perceptions of their learning environments, accelerated summer programs and regular schools, and social support in lives after participation in the summer programs. Our…

  13. Gifted Students' Perceptions of an Accelerated Summer Program and Social Support

    ERIC Educational Resources Information Center

    Lee, Seon-Young; Olszewski-Kubilius, Paula; Makel, Matthew C.; Putallaz, Martha

    2015-01-01

    Using survey responses from students who participated in the summer programs at two university-based gifted education institutions, this study examined changes in gifted students' perceptions of their learning environments, accelerated summer programs and regular schools, and social support in lives after participation in the summer programs. Our…

  14. A user's guide to particle physics computer-searchable databases on the SLAC-SPIRES system

    SciTech Connect

    Rittenberg, A.; Armstrong, F.E.; Levine, B.S.; Trippe, T.G.; Wohl, C.G.; Yost, G.P.; Whalley, M.R.; Addis, L.

    1986-09-01

    This report discusses five computer-searchable databases located at SLAC which are of interest to particle physicists. These databases assist the user in literature-searching, provide numerical data extracted from papers, and contain information about experiments. We describe the databases briefly, tell how to use the SPIRES database management system to access them interactively, and give several examples of their use.

  15. Dataset for distribution of INGI/RIME and SLACS CRE transposable elements in Trypanosoma brucei genome

    PubMed Central

    Khan, Mohd. Faheem; Shrivastava, Kush; Sinha, Rebeka; Kumar, Virender; Jaitly, A.K.

    2015-01-01

    The current dataset is generated via bio-computational approach by surveying of INGI/RIME and SLACS CRE transposable elements (TEs) in latest update of Trypanosoma brucei genome. The distribution dataset (Supplementary File 1) shows the chromosome wise distribution of INGI/RIME and SLACS CRE transposable elements with the status of their -5? and -3? ends, genomic coverage and further elemental description about the completeness on the element. The 5? upstream flanking sequence of 100 bp was then analyzed to find out possible regions that could act as insertion hotspots. The Fig. 1 represents the ten different motifs found in the 5? flanking region of the INGI/RIME and SLACS CRE elements. The Supplementary File 2 describes the distribution of these ten motifs in different locations in Trypanosoma brucei genome. These new locations where motifs were found may provide useful information to track the future transposition events of INGI/RIME and SLACS CRE elements in different Trypanosoma species. PMID:26693517

  16. High Frequency, High Gradient Dielectric Wakefield Acceleration Experiments at SLAC and BNL

    SciTech Connect

    Rosenzweig, James; Travish, Gil; Hogan, Mark; Muggli, Patric; /Southern California U.

    2012-07-05

    Given the recent success of >GV/m dielectric wakefield accelerator (DWA) breakdown experiments at SLAC, and follow-on coherent Cerenkov radiation production at the UCLA Neptune, a UCLA-USC-SLAC collaboration is now implementing a new set of experiments that explore various DWA scenarios. These experiments are motivated by the opportunities presented by the approval of FACET facility at SLAC, as well as unique pulse-train wakefield drivers at BNL. The SLAC experiments permit further exploration of the multi-GeV/m envelope in DWAs, and will entail investigations of novel materials (e.g. CVD diamond) and geometries (Bragg cylindrical structures, slab-symmetric DWAs), and have an over-riding goal of demonstrating >GeV acceleration in {approx}33 cm DWA tubes. In the nearer term before FACET's commissioning, we are planning measurements at the BNL ATF, in which we drive {approx}50-200 MV/m fields with single pulses or pulse trains. These experiments are of high relevance to enhancing linear collider DWA designs, as they will demonstrate potential for efficient operation with pulse trains.

  17. High Frequency, High Gradient Dielectric Wakefield Acceleration Experiments at SLAC and BNL

    SciTech Connect

    Rosenzweig, J. B.; Andonian, G.; Niknejadi, P.; Travish, G.; Williams, O.; Xuan, K.; Muggli, P.; Yakimenko, V.

    2010-11-04

    Given the recent success of >GV/m dielectric wakefield accelerator (DWA) breakdown experiments at SLAC, and follow-on coherent Cerenkov radiation (CCR) production at the UCLA Neptune, a UCLA-USC-SLAC collaboration is now implementing a new set of experiments that explore various DWA scenarios. These experiments are motivated by the opportunities presented by the approval of the FACET facility at SLAC, as well as unique pulse-train wakefield drivers at BNL. The SLAC experiments permit further exploration of the multi-GeV/m envelope in DWAs, and will entail investigations of novel materials (e.g. CVD diamond) and geometries (Bragg cylindrical structures, slab-symmetric DWAs), and have an over-riding goal of demonstrating >GeV acceleration in {approx}33 cm DWA tubes. In the nearer term before FACET's commissioning, we are performing measurements at the BNL ATF, in which we drive {approx}50-200 MV/m fields with single pulses or pulse trains, and observe resonantly driven CCR as well as deflection modes. These experiments are of high relevance to enhancing linear collider DWA designs, as they will demonstrate potential for high efficiency operation with pulse trains, and explore transverse modes for the first time.

  18. Dataset for distribution of INGI/RIME and SLACS CRE transposable elements in Trypanosoma brucei genome.

    PubMed

    Khan, Mohd Faheem; Shrivastava, Kush; Sinha, Rebeka; Kumar, Virender; Jaitly, A K

    2015-12-01

    The current dataset is generated via bio-computational approach by surveying of INGI/RIME and SLACS CRE transposable elements (TEs) in latest update of Trypanosoma brucei genome. The distribution dataset (Supplementary File 1) shows the chromosome wise distribution of INGI/RIME and SLACS CRE transposable elements with the status of their -5' and -3' ends, genomic coverage and further elemental description about the completeness on the element. The 5' upstream flanking sequence of 100 bp was then analyzed to find out possible regions that could act as insertion hotspots. The Fig. 1 represents the ten different motifs found in the 5' flanking region of the INGI/RIME and SLACS CRE elements. The Supplementary File 2 describes the distribution of these ten motifs in different locations in Trypanosoma brucei genome. These new locations where motifs were found may provide useful information to track the future transposition events of INGI/RIME and SLACS CRE elements in different Trypanosoma species. PMID:26693517

  19. Structure Loaded Vacuum Laser-Driven Particle Acceleration Experiments at SLAC

    SciTech Connect

    Plettner, T.; Byer, R.L.; Colby, E.R.; Cowan, B.M.; Ischebeck, R.; McGuinness, C.; Lincoln, M.R.; Sears, C.M.; Siemann, R.H.; Spencer, J.E.; /SLAC /Stanford U., Phys. Dept.

    2007-04-09

    We present an overview of the future laser-driven particle acceleration experiments. These will be carried out at the E163 facility at SLAC. Our objectives include a reconfirmation of the proof-of-principle experiment, a staged buncher laser-accelerator experiment, and longer-term future experiments that employ dielectric laser-accelerator microstructures.

  20. Promethean Summer: Professional Development Boldly Focuses on the Classics

    ERIC Educational Resources Information Center

    Dubin, Jennifer

    2014-01-01

    This article describes the Sue Rose Summer Institute for Teachers at the Dallas Institute of Humanities and Culture, which, for 30 years, has treated teachers as intellectuals. To that end, the nonprofit educational organization offers teachers from all grade levels and all disciplines an experience that either reacquaints them with or introduces…

  1. Fireplace in former summer kitchen from west. The summer kitchen ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Fireplace in former summer kitchen from west. The summer kitchen is now attached at the southeast elevation of the main house. - William Carmichael House, 201 East Water Street, Centreville, Queen Anne's County, MD

  2. Summer Reading Summer Not: How Project READS Can Advance Equity

    ERIC Educational Resources Information Center

    Kim, James S.

    2010-01-01

    This paper has three goals. First, it describes the broader research on summer reading loss. Second, it discusses how research and development efforts informed the key components of Project READS (Reading Enhances Achievement During Summer), a scaffolded voluntary summer reading intervention for children in grades 3 to 5. The second part of the…

  3. Making Summer Count: How Summer Programs Can Boost Children's Learning

    ERIC Educational Resources Information Center

    McCombs, Jennifer Sloan; Augustine, Catherine; Schwartz, Heather; Bodilly, Susan; McInnis, Brian; Lichter, Dahlia; Cross, Amanda Brown

    2012-01-01

    During summer vacation, many students lose knowledge and skills. By the end of summer, students perform, on average, one month behind where they left off in the spring. Participation in summer learning programs should mitigate learning loss and could even produce achievement gains. Indeed, educators and policymakers increasingly promote summer…

  4. Summer Challenge: Model Summer Programs for Disadvantaged Students.

    ERIC Educational Resources Information Center

    Office of Educational Research and Improvement (ED), Washington, DC. Programs for the Improvement of Practice.

    This guide is designed to help school staff plan effective summer programs for disadvantaged children by offering an array of ideas for designing exciting and stimulating summer programs and offering important information from research and practice on what makes an effective summer program. If schools are to expect excellence from disadvantaged…

  5. Summer Harvest in Saratov, Russia

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Russia's Saratov Oblast (province) is located in the southeastern portion of the East-European plain, in the Lower Volga River Valley. Southern Russia produces roughly 40 percent of the country's total agricultural output, and Saratov Oblast is the largest producer of grain in the Volga region. Vegetation changes in the province's agricultural lands between spring and summer are apparent in these images acquired on May 31 and July 18, 2002 (upper and lower image panels, respectively) by the Multi-angle Imaging SpectroRadiometer (MISR).

    The left-hand panels are natural color views acquired by MISR's vertical-viewing (nadir) camera. Less vegetation and more earth tones (indicative of bare soils) are apparent in the summer image (lower left). Farmers in the region utilize staggered sowing to help stabilize yields, and a number of different stages of crop maturity can be observed. The main crop is spring wheat, cultivated under non-irrigated conditions. A short growing season and relatively low and variable rainfall are the major limitations to production. Saratov city is apparent as the light gray pixels on the left (west) bank of the Volga River. Riparian vegetation along the Volga exhibits dark green hues, with some new growth appearing in summer.

    The right-hand panels are multi-angle composites created with red band data from MISR's 60-degree backward, nadir and 60-degree forward-viewing cameras displayed as red, green and blue respectively. In these images, color variations serve as a proxy for changes in angular reflectance, and the spring and summer views were processed identically to preserve relative variations in brightness between the two dates. Urban areas and vegetation along the Volga banks look similar in the two seasonal multi-angle composites. The agricultural areas, on the other hand, look strikingly different. This can be attributed to differences in brightness and texture between bare soil and vegetated land. The chestnut-colored soils in this region are brighter in MISR's red band than the vegetation. Because plants have vertical structure, the oblique cameras observe a greater proportion of vegetation relative to the nadir camera, which sees more soil. In spring, therefore, the scene is brightest in the vertical view and thus appears with an overall greenish hue. In summer, the soil characteristics play a greater role in governing the appearance of the scene, and the angular reflectance is now brighter at the oblique view angles (displayed as red and blue), thus imparting a pink color to much of the farmland and a purple color to areas along the banks of several narrow rivers. The unusual appearance of the clouds is due to geometric parallax which splits the imagery into spatially separated components as a consequence of their elevation above the surface.

    The Multi-angle Imaging SpectroRadiometer observes the daylit Earth continuously from pole to pole, and views almost the entire globe every 9 days. These images are a portion of the data acquired during Terra orbits 13033 and 13732, and cover an area of about 173 kilometers x 171 kilometers. They utilize data from blocks 49 to 50 within World Reference System-2 path 170.

    MISR was built and is managed by NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Office of Earth Science, Washington, DC. The Terra satellite is managed by NASA's Goddard Space Flight Center, Greenbelt, MD. JPL is a division of the California Institute of Technology.

  6. Arctic Summer Ice Processes

    NASA Technical Reports Server (NTRS)

    Holt, Benjamin

    1999-01-01

    The primary objective of this study is to estimate the flux of heat and freshwater resulting from sea ice melt in the polar seas. The approach taken is to examine the decay of sea ice in the summer months primarily through the use of spaceborne Synthetic Aperture Radar (SAR) imagery. The improved understanding of the dynamics of the melt process can be usefully combined with ice thermodynamic and upper ocean models to form more complete models of ice melt. Models indicate that more heat is absorbed in the upper ocean when the ice cover is composed of smaller rather than larger floes and when there is more open water. Over the course of the summer, floes disintegrate by physical forcing and heating, melting into smaller and smaller sizes. By measuring the change in distribution of floes together with open water over a summer period, we can make estimates of the amount of heating by region and time. In a climatic sense, these studies are intended to improve the understanding of the Arctic heat budget which can then be eventually incorporated into improved global climate models. This work has two focus areas. The first is examining the detailed effect of storms on floe size and open water. A strong Arctic low pressure storm has been shown to loosen up the pack ice, increase the open water concentration well into the pack ice, and change the distribution of floes toward fewer and smaller floes. This suggests episodic melting and the increased importance of horizontal (lateral) melt during storms. The second focus area is related to an extensive ship-based experiment that recently took place in the Arctic called Surface Heat Budget of the Arctic (SHEBA). An icebreaker was placed purposely into the older pack ice north of Alaska in September 1997. The ship served as the base for experimenters who deployed extensive instrumentation to measure the atmosphere, ocean, and ice during a one-year period. My experiment will be to derive similar measurements (floe size, open water, temporal change) using spaceborne SAR data obtained during the summer of 1998, and compare these results with an ocean and ice model of summer melt. Additional information is contained in the original.

  7. Summer Learning: Accelerating Student Success

    ERIC Educational Resources Information Center

    Pitcock, Sarah; Seidel, Bob

    2015-01-01

    As numerous studies from 1906 on have confirmed, children lose ground in learning if they lack opportunities for building skills over the summer. Nonetheless, summer learning loss comes up but rarely in the national discussion of education reform. By the end of summer, students perform on average one month behind where they left off in the spring.…

  8. Summer Learning: Accelerating Student Success

    ERIC Educational Resources Information Center

    Pitcock, Sarah; Seidel, Bob

    2015-01-01

    As numerous studies from 1906 on have confirmed, children lose ground in learning if they lack opportunities for building skills over the summer. Nonetheless, summer learning loss comes up but rarely in the national discussion of education reform. By the end of summer, students perform on average one month behind where they left off in the spring.…

  9. Next Generation Summer School

    NASA Astrophysics Data System (ADS)

    Eugenia, Marcu

    2013-04-01

    On 21.06.2010 the "Next Generation" Summer School has opened the doors for its first students. They were introduced in the astronomy world by astronomical observations, astronomy and radio-astronomy lectures, laboratory projects meant to initiate them into modern radio astronomy and radio communications. The didactic programme was structure as fallowing: 1) Astronomical elements from the visible spectrum (lectures + practical projects) 2) Radio astronomy elements (lectures + practical projects) 3) Radio communication base (didactic- recreative games) The students and professors accommodation was at the Agroturistic Pension "Popasul Iancului" situated at 800m from the Marisel Observatory. First day (summer solstice day) began with a practical activity: determination of the meridian by measurements of the shadow (the direction of one vertical alignment, when it has the smallest length). The experiment is very instructive and interesting because combines notions of physics, spatial geometry and basic astronomy elements. Next day the activities took place in four stages: the students processed the experimental data obtained on first day (on sheets of millimetre paper they represented the length of the shadow alignments according the time), each team realised its own sun quadrant, point were given considering the design and functionality of these quadrant, the four teams had to mimic important constellations on carton boards with phosphorescent sticky stars and the students, accompanied by the professors took a hiking trip to the surroundings, marking the interest point coordinates, using a GPS to establish the geographical coronations and at the end of the day the students realised a small map of central Marisel area based on the GPS data. On the third day, the students were introduced to basic notions of radio astronomy, the principal categories of artificial Earth satellites: low orbit satellites (LEO), Medium orbit satellites (MEO) and geostationary satellites (GEO). The lecture was sustained by Physicist Paul Dolea, researcher at BITNET CCSS and PhD in Electronic Engineer and Telecommunications at Technical University from Cluj. There were presented several didactic-demonstrative prototypes of radio transmission of audio and video signals, with directive reception antenna. We benefited from the BITNET firm help which allowed the students to visit the equipments for C and Ku bands reception, with 4m diameter parabolic antenna and 14 tones foundation. The students were also presented the S band communication equipment with low altitude artificial satellites. The parabolic antenna with 3m in diameter is able to detect everywhere on the sky the extremely fast satellites situated at thousands of kilometres distance, which "are crossing" the sky in only several minutes. Most of the students climbed the platform under the cupola designated to the astronomical observations in visible spectrum and took pictures. The following days were lectured on topics of theoretical astronomy and astrophysics and during the nights were made astronomical observations. All the students received diplomas to certify their participation to the first "Next Generation" Summer School. This summer school will be organised from now on every summer, in Marisel area from Cluj. Since then the summer school has been held each year.

  10. 2003 SOLAS Summer School

    NASA Technical Reports Server (NTRS)

    McGillis, Wade R.

    2003-01-01

    In 2003, the United States provided support for the participation of 18 students, three research assistants, and seven lecturers in the first international Surface Ocean Lower Atmosphere Study (SOLAS) Summer School. The purpose of this school was to introduce graduate students and young researchers to different components of SOLAS research including biogeochemical interactions and feedbacks, exchange processes, and air-sea fluxes. Support was provided through grants from: NASA (contact: Charles Trees); NSF (contact: Anne-Marie Schmoltner); NOAA (contact: Kathy Tedesco); and ONR (contact: Ronald Ferek).

  11. Final Report: BaBar Detector and Experimental at SLAC, September 30, 1998 - September 29, 1999

    SciTech Connect

    Judd, Dennis J.

    2000-01-20

    The Prairie View A&M University High Energy Physics Group with its contingent of three undergraduates physics majors, joined the BaBar Collaboration at SLAC in September 1994. BaBar is the experiment and detector running in the PEP-II ring at SLAC as part of the Asymmetric B Factory project there to study CP violation and heavy flavor physics. The focus of our effort before this year was with the Muon/Neutral Hadron Detector/Instrumented Flux Return (IFD) subgroup within the BaBar collaboration, and particularly with the GEANT simulation of the IFR. With the GEANT3 simulation essentially frozen, and the GEANT4 full simulation of the IFR done, we have decided to redirect our efforts toward other areas.

  12. Mega-electron-volt ultrafast electron diffraction at SLAC National Accelerator Laboratory

    SciTech Connect

    Weathersby, S. P.; Brown, G.; Centurion, M.; Chase, T. F.; Coffee, R.; Corbett, J.; Eichner, J. P.; Frisch, J. C.; Fry, A. R.; GĂĽhr, M.; Hartmann, N.; Hast, C.; Hettel, R.; Jobe, R. K.; Jongewaard, E. N.; Lewandowski, J. R.; Li, R. K.; Lindenberg, A. M.; Makasyuk, I.; May, J. E.; McCormick, D.; Nguyen, M. N.; Reid, A. H.; Shen, X.; Sokolowski-Tinten, K.; Vecchione, T.; Vetter, S. L.; Wu, J.; Yang, J.; DĂĽrr, H. A.; Wang, X. J.

    2015-07-01

    Ultrafast electron probes are powerful tools, complementary to x-ray free-electron lasers, used to study structural dynamics in material, chemical, and biological sciences. High brightness, relativistic electron beams with femtosecond pulse duration can resolve details of the dynamic processes on atomic time and length scales. SLAC National Accelerator Laboratory recently launched the Ultrafast Electron Diffraction (UED) and microscopy Initiative aiming at developing the next generation ultrafast electron scattering instruments. As the first stage of the Initiative, a mega-electron-volt (MeV) UED system has been constructed and commissioned to serve ultrafast science experiments and instrumentation development. The system operates at 120-Hz repetition rate with outstanding performance. In this paper, we report on the SLAC MeV UED system and its performance, including the reciprocal space resolution, temporal resolution, and machine stability.

  13. Direct measurements of Ab and Ac using vertex and kaon charge tags at the SLAC detector.

    PubMed

    Abe, Koya; Abe, Kenji; Abe, T; Adam, I; Akimoto, H; Aston, D; Baird, K G; Baltay, C; Band, H R; Barklow, T L; Bauer, J M; Bellodi, G; Berger, R; Blaylock, G; Bogart, J R; Bower, G R; Brau, J E; Breidenbach, M; Bugg, W M; Burke, D; Burnett, T H; Burrows, P N; Calcaterra, A; Cassell, R; Chou, A; Cohn, H O; Coller, J A; Convery, M R; Cook, V; Cowan, R F; Crawford, G; Damerell, C J S; Daoudi, M; Dasu, S; de Groot, N; de Sangro, R; Dong, D N; Doser, M; Dubois, R; Erofeeva, I; Eschenburg, V; Etzion, E; Fahey, S; Falciai, D; Fernandez, J P; Flood, K; Frey, R; Hart, E L; Hasuko, K; Hertzbach, S S; Huffer, M E; Huynh, X; Iwasaki, M; Jackson, D J; Jacques, P; Jaros, J A; Jiang, Z Y; Johnson, A S; Johnson, J R; Kajikawa, R; Kalelkar, M; Kang, H J; Kofler, R R; Kroeger, R S; Langston, M; Leith, D W G; Lia, V; Lin, C; Mancinelli, G; Manly, S; Mantovani, G; Markiewicz, T W; Maruyama, T; McKemey, A K; Messner, R; Moffeit, K C; Moore, T B; Morii, M; Muller, D; Murzin, V; Narita, S; Nauenberg, U; Neal, H; Nesom, G; Oishi, N; Onoprienko, D; Osborne, L S; Panvini, R S; Park, C H; Peruzzi, I; Piccolo, M; Piemontese, L; Plano, R J; Prepost, R; Prescott, C Y; Ratcliff, B N; Reidy, J; Reinertsen, P L; Rochester, L S; Rowson, P C; Russell, J J; Saxton, O H; Schalk, T; Schumm, B A; Schwiening, J; Serbo, V V; Shapiro, G; Sinev, N B; Snyder, J A; Staengle, H; Stahl, A; Stamer, P; Steiner, H; Su, D; Suekane, F; Sugiyama, A; Suzuki, A; Swartz, M; Taylor, F E; Thom, J; Torrence, E; Usher, T; Va'vra, J; Verdier, R; Wagner, D L; Waite, A P; Walston, S; Weidemann, A W; Weiss, E R; Whitaker, J S; Williams, S H; Willocq, S; Wilson, R J; Wisniewski, W J; Wittlin, J L; Woods, M; Wright, T R; Yamamoto, R K; Yashima, J; Yellin, S J; Young, C C; Yuta, H

    2005-03-11

    Exploiting the manipulation of the SLAC Linear Collider electron-beam polarization, we present precise direct measurements of the parity-violation parameters A(c) and A(b) in the Z-boson-c-quark and Z-boson-b-quark coupling. Quark-antiquark discrimination is accomplished via a unique algorithm that takes advantage of the precise SLAC Large Detector charge coupled device vertex detector, employing the net charge of displaced vertices as well as the charge of kaons that emanate from those vertices. From the 1996-1998 sample of 400 000 Z decays, produced with an average beam polarization of 73.4%, we find A(c)=0.673+/-0.029(stat)+/-0.023(syst) and A(b)=0.919+/-0.018(stat)+/-0.017(syst). PMID:15783953

  14. Longitudinal Wakefield Study in SLAC Rotatable Collimator Design for the LHC Phase II Upgrade

    SciTech Connect

    Xiao, Liling; Lundgren, Steven; Markiewicz, Thomas; Ng, Cho-Kuen; Smith, Jeffrey; /SLAC

    2010-08-25

    SLAC proposed a rotatable collimator design for the LHC Phase II collimation upgrade. There are 20 facet faces on each cylindrical jaw surface and two jaws are rotatable in order to introduce a clean surface in case of a beam hitting a jaw during operation. When the beam crosses the collimator, it will excite broad-band and narrow-band modes. The longitudinal modes can contribute to beam energy loss and power dissipation on the vacuum chamber wall. In this paper, the parallel finite element eigensolver Omega3P is used to search for all the longitudinal trapped modes in the SLAC collimator design. The power dissipation generated by the beam in collimators with different vacuum chamber and RF contact designs is discussed. It is found that a wider RF foil connecting the jaw and the vacuum flange can reduce efficiently the beam heating caused by the longitudinal modes.

  15. Mega-electron-volt ultrafast electron diffraction at SLAC National Accelerator Laboratory.

    PubMed

    Weathersby, S P; Brown, G; Centurion, M; Chase, T F; Coffee, R; Corbett, J; Eichner, J P; Frisch, J C; Fry, A R; GĂĽhr, M; Hartmann, N; Hast, C; Hettel, R; Jobe, R K; Jongewaard, E N; Lewandowski, J R; Li, R K; Lindenberg, A M; Makasyuk, I; May, J E; McCormick, D; Nguyen, M N; Reid, A H; Shen, X; Sokolowski-Tinten, K; Vecchione, T; Vetter, S L; Wu, J; Yang, J; DĂĽrr, H A; Wang, X J

    2015-07-01

    Ultrafast electron probes are powerful tools, complementary to x-ray free-electron lasers, used to study structural dynamics in material, chemical, and biological sciences. High brightness, relativistic electron beams with femtosecond pulse duration can resolve details of the dynamic processes on atomic time and length scales. SLAC National Accelerator Laboratory recently launched the Ultrafast Electron Diffraction (UED) and microscopy Initiative aiming at developing the next generation ultrafast electron scattering instruments. As the first stage of the Initiative, a mega-electron-volt (MeV) UED system has been constructed and commissioned to serve ultrafast science experiments and instrumentation development. The system operates at 120-Hz repetition rate with outstanding performance. In this paper, we report on the SLAC MeV UED system and its performance, including the reciprocal space resolution, temporal resolution, and machine stability. PMID:26233391

  16. Lattice design and optimization for the PEP-X ultra low emittance storage ring at SLAC

    SciTech Connect

    Wang, Min-Huey; Nosochkov, Yuri; Bane, Karl; Cai, Yunhai; Hettel, Robert; Huang, Xiaobiao; /SLAC

    2011-08-12

    SLAC is developing a long-range plan to transfer the evolving scientific programs at SSRL from the SPEAR3 light source to a much higher performing photon source. One of the possibilities is a new PEP-X 4.5 GeV storage ring that would be housed in the 2.2 km PEP-II tunnel. The PEP-X is designed to produce photon beams having brightness near 10{sup 22} (ph/s/mm{sup 2}/mrad{sup 2}/0.1% BW) at 10 keV with 3.5 m undulator at beam current of 1.5 A. This report presents an overview of the PEP-X baseline lattice design and describes the lattice optimization procedures in order to maximize the beam dynamic aperture. The complete report of PEP-X baseline design is published in SLAC report.

  17. Radiation Dose Measurement for High-Intensity Laser Interactions with Solid Targets at SLAC

    SciTech Connect

    Liang, Taiee

    2015-09-25

    A systematic study of photon and neutron radiation doses generated in high-intensity laser-solid interactions is underway at SLAC National Accelerator Laboratory. We found that these laser-solid experiments are being performed using a 25 TW (up to 1 J in 40 fs) femtosecond pulsed Ti:sapphire laser at the Linac Coherent Light Source’s (LCLS) Matter in Extreme Conditions (MEC) facility. Additionally, radiation measurements were performed with passive and active detectors deployed at various locations inside and outside the target chamber. Results from radiation dose measurements for laser-solid experiments at SLAC MEC in 2014 with peak intensity between 1018 to 7.1x1019 W/cm2 are presented.

  18. Mathematical models for the control program of the SLAC linear collider

    SciTech Connect

    Lee, M.J.; Blocker, C.; Chao, A.W.

    1981-02-01

    The operation of the SLAC two-mile linear accelerator in the single pass collider mode will be computer controlled. Mathematical models will be used in the control program to set up and restore the beam optics and to correct orbits. Some of the requirements imposed upon the on-line model calculations and the ways to satisfy these requirements will be described in this paper.

  19. Status of the SLAC/LBL/LLNL B-factory and the BABAR detector

    SciTech Connect

    Oddone, P.

    1994-10-01

    After a brief introduction on the physics reach of the SLAC/LBL/LLNL Asymmetric B-Factory, the author describes the status of the accelerator and the detector as of the end of 1994. At this time, essentially all major decisions have been made, including the choice of particle identification for the detector. The author concludes this report with the description of the schedule for the construction of both accelerator and detector.

  20. Preliminary Results of the Echo-Seeding Experiment ECHO-7 at SLAC

    SciTech Connect

    Xiang, D.; Colby, E.; Ding, Y.; Dunning, M.; Frederico, J.; Gilevich, S.; Hast, C.; Jobe, K.; McCormick, D.; Nelson, J.; Raubenheimer, T.O.; Soong, K.; Stupakov, G.; Szalata, Z.; Walz, D.; Weathersby, S.; Woodley, M.; Corlett, J.; Qiang, J.; Penn, G.; Prestemon, S.; ,

    2010-06-15

    ECHO-7 is a proof-of-principle echo-enabled harmonic generation FEL experiment in the Next Linear Collider Test Accelerator (NLCTA) at SLAC. The experiment aims to generate coherent radiation at 318 nm and 227 nm, which are the 5th and 7th harmonic of the infrared seed laser. In this paper we present the preliminary results from the commissioning run of the completed experimental setup which started in April 2010.

  1. Anomalous electron loading in SLAC 5045 klystron and relativistic klystron input cavities

    SciTech Connect

    Koontz, R.F.; Fowkes, R.W.; Lavine, T.L.; Miller, R.H.; Vlieks, A.E.

    1989-03-01

    Recent studies of RF breakup and instability in the SLAC 5045 klystrons have revealed that many production klystrons show loading of the input cavity by low energy electrons even under cold cathode no beam conditions. Sometime after the onset of the RF drive pulse, the input cavity absorbs a portion of the incident RF drive that would otherwise be reflected from the not-beam-loaded cavity. This power absorption is a function of drive level, and of axial magnetic field surrounding the cavity. No power absorption is present when the axial magnetic field is zero. This same phenomenon has been observed in the input cavity of relativistic klystron experiments being conducted as part of the SLAC-LBL-LLNL development program. The phenomenon may be associated with RF breakup and RF instability in SLAC 5045 klystrons, and with unstable pulse shortening in the relativistic klystron experiments. This paper outlines some old and new observations of microwave beam device malfunctions that probably are associated with low energy electron fluxes in the vacuum environments of microwave power devices. 2 refs., 5 figs.

  2. Evaluation and measurements of radioactive air emission and off-site doses at SLAC.

    PubMed

    Chan, Ivy; Liu, James; Tran, Henry

    2013-08-01

    SLAC, a high-energy (GeV) electron accelerator facility, performs experimental and theoretical research using high-energy electron and/or positron beams that can produce secondary neutron and gamma radiation when beam losses occur. Radioactive gas production (mainly C, N, O, Ar) and release is one of the environmental protection program issues. U.S. DOE Order 458.1 requires that 40 CFR 61 Subpart H's NESHAP requirements be followed. These regulations prescribe a total dose limit of 0.1 mSv y to the Maximally Exposed Individual (MEI) of the general public, a requirement for a continuous air monitoring system if a release point within a facility can cause > 1 × 10 mSv y to the MEI, and a requirement for periodic confirmatory measurements for minor sources which give releases that contribute ≤ 1 × 10 mSv y to the MEI. At SLAC, all air release points for current operations are evaluated to be minor sources. This paper describes SLAC's evaluation following NESHAP requirements; measurements using the Air Monitoring Station (AMS) as periodic confirmatory measurements are also discussed. PMID:23803664

  3. A River Summer on the Hudson

    NASA Astrophysics Data System (ADS)

    Kenna, T. C.; Pfirman, S.; Selleck, B.; Son, L.; Land, M.; Cronin, J.

    2006-12-01

    River Summer is a month-long faculty development program extending from the continental shelf off New York City to the headwaters of the Hudson in the Adirondack Mountains. During the program, faculty from the Environmental Consortium of Hudson Valley Colleges and Universities teach each other about the Hudson environment, using innovative methods of teaching and learning, with a focus on incorporation of hands-on approaches from the perspective of multiple disciplines. Over four weeks, faculty from research universities, community colleges, liberal arts institutions, and middle and high schools work and live together, on board a research vessel or in a remote tent campsite, for several days at a time. Using the geology, hydrology, and landscape of the River as a foundation, River Summer focuses on understanding development of the Hudson within the context of its natural resources and cultural history. Participants conduct field sampling and analyses and consider issues through approaches that are common to many disciplines: scaling for problem solving; sampling and assessing bias and representation; observing and documenting; representing and depicting; interpretation and assessing relationships and causality; and evaluation. They also get a chance to experience, first-hand, the complexity and often open-ended nature of doing science. By allowing individuals, many of whom come from non-science disciplines, to experience these methods and processes in a safe learning environment, science is made more meaningful and accessible. The program's pedagogy is based on the principles of cognitive psychology and immersive field-, place- and inquiry-based learning. Field programs have been found to provide memorable, transformative experiences for undergraduate students, and our experience with River Summer 2005 and 2006 suggests they are equally effective with faculty. Evaluation shows that River Summer has a significant impact on its participants. Participants develop new inter-institutional collaborations, and interdisciplinary pedagogical and research approaches that would otherwise never have happened. River Summer content and pedagogy are being used by participants to transform their teaching at their home institutions in disciplines as diverse as anthropology, art history, biology, economics, engineering, geochemistry, political science, and writing. Using local resources and landscapes develops an understanding of the environment in which one works and lives, providing greater accessibility and deeper meaning. Proximity to the areas being studied also allows them to be developed into class field trips. The enthusiasm and energy that the project evokes suggests that the model developed for this program could be successfully implemented in other settings to promote interdisciplinary learning about the earth and its environment.

  4. Evaluation of a Summer Reading Program to Reduce Summer Setback

    ERIC Educational Resources Information Center

    Johnston, Jessica; Riley, Jessica; Ryan, Carey; Kelly-Vance, Lisa

    2015-01-01

    Summer setback, which is defined as a decline in academic achievement over the summer months, occurs in many academic areas but seems especially problematic in reading. We assessed students from a midwestern parochial school serving predominantly students from a low--socioeconomic status background for their reading achievement before they left…

  5. Tsunami Summer! 2003 Young Adult Summer Library Program.

    ERIC Educational Resources Information Center

    Alabama Public Library Service, Montgomery.

    This manual is designed to assist public libraries in Alabama with setting up "Tsunami Summer!," a summer program for young adults, i.e., students in grades 6 through 12. The manual contains the following sections: (1) Publicity and Promotion; (2) Working with Schools; (3) Involving the Students, including teen volunteers, teen advisory councils,…

  6. Summer Seminars: A Look at the Benefits of Summer Workshops.

    ERIC Educational Resources Information Center

    Barrington, Linda

    2003-01-01

    Notes that learning new things is one of the most important reasons advisers send their editors and staff to summer workshops, and it is also the biggest reason for advisers themselves to go. Explains that in the atmosphere of a summer workshop, everyone shares a dedication to journalism. Concludes that most students and advisers come away from…

  7. Have a Bearable Summer: '86 Summer Reading Program Planning Manual.

    ERIC Educational Resources Information Center

    Jackson, Mary

    Because studies have found that children can lose a year in their reading skills and motivation during summers, this planning guide suggests ways for librarians to interest children in a summer reading program by appealing to their fascination with bears and teddy bears. The guide is organized chronologically, beginning with a timetable, followed…

  8. A Summer Research Institute for High School Science Teachers.

    ERIC Educational Resources Information Center

    White, Donald H.; Goldberg, Eugene

    This program was initiated because of the failure of secondary schools to inform their students adequately about contemporary scientific career opportunities and to establish criteria for determining whether or not a scientific career is suitable for a student's interests and capacity. The purpose of the program is: (a) to provide an opportunity…

  9. Stop the Summer Reading Slide

    ERIC Educational Resources Information Center

    Lundstrom, Meg

    2005-01-01

    When teachers wave goodbye to their students as they head off for summer vacation, they might just be bidding farewell to some of their hard-won gains in reading skills. The "summer slide" is well-documented by research: Unless students read regularly during the break, they fall behind about three months in their reading achievement. This article…

  10. Educational Merit of Summer Programs.

    ERIC Educational Resources Information Center

    Miller, Larry E.; Parks, Darrell L.

    1981-01-01

    Advisory committees from the horticultural and agricultural mechanics industries were surveyed to determine the educational merits and criticalness of students acquiring specific experiences available only during the summer months. In horticulture, summer experience was indicated to be essential to 60 (26.1 percent) of the duty/task categories.…

  11. Quality of Summer Teachers Examined

    ERIC Educational Resources Information Center

    Sawchuk, Stephen

    2011-01-01

    A hefty body of evidence documents the phenomenon of "summer learning loss," but consensus on the attributes of effective summer intervention, especially when it comes to access to high-quality teaching for students most at risk of falling behind, is only starting to emerge. Now, though, a handful of districts are beginning to wrestle with the…

  12. "Learning City" Summer Migrant Program.

    ERIC Educational Resources Information Center

    Presson, Johnny E.; Baker, Wilbur L.

    "Learning City" is the theme of a summer education project that provides a unique teaching atmosphere for migrant children. For 2 summers, 130 students have participated in this program that sustains and enforces reading and math skills, as well as helps develop self-concept. Industries in Learning City are the various branches of study: reading…

  13. The 1982 NASA/ASEE Summer Faculty Fellowship Program

    NASA Technical Reports Server (NTRS)

    Barfield, B. F. (Editor); Kent, M. I. (Editor); Dozier, J. (Editor); Karr, G. (Editor)

    1982-01-01

    A NASA/ASEE Summer Faculty Fellowship Research Program was conducted to further the professional knowledge of qualified engineering and science faculty members, to stimulate an exchange of ideas between participants and NASA, to enrich and refresh the research and teaching activities of participants' institutions, and to contribute to the research objectives of the NASA Centers.

  14. University of Alaska Anchorage Student Information, Summer 2000 Closing.

    ERIC Educational Resources Information Center

    Alaska Univ., Anchorage. Office of Institutional Planning, Research, and Assessment.

    This statistical document from the University of Alaska Anchorage provides charts and graphs regarding students and student activities at the six-campus institution, including Prince William Sound Community College, for summer 2000. Included is information on student headcount and student characteristics as well as credit hours at each campus.…

  15. Evaluation of Michigan Migrant Education, Summer 1971 Programs.

    ERIC Educational Resources Information Center

    Central Michigan Univ., Mount Pleasant. Michigan Migrant Education Center.

    An introduction to the evaluation of the effects of Michigan migrant education projects on migrant children enrolled in its schools during the summer or 1971 is presented in this document. Background information concerning the general migrant phenomenon, the agencies and institutions responsible for providing migrant children with educational…

  16. 164. HISTORIC AMERICAN ENGINEERING RECORD SUMMER RECORDING TEAM, 1992. LEFT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    164. HISTORIC AMERICAN ENGINEERING RECORD SUMMER RECORDING TEAM, 1992. LEFT TO RIGHT: JOE ELLIOTT, PHOTOGRAPHER; VIRGINIA BRUMBACK, ARCHITECT; DAVE EVE, HISTORIAN (ICOMOS, IRONBRIDGE INSTITUTE, ENGLAND); BOB ARZYWACZ, PROJECT SUPERVISOR; LEE ANN JACKSON, ARCHITECT; AND ALBERT AFLENZER, ICOMOS ARCHITECT (TECHNICAL UNIVERSITY, VIENNA, AUSTRIA). - Bald Mountain Gold Mill, Nevada Gulch at head of False Bottom Creek, Lead, Lawrence County, SD

  17. The proposed alignment system for the Final Focus Test Beam at SLAC

    SciTech Connect

    Ruland, R.E.; Fischer, G.E.

    1990-09-01

    This report describes the current state of work in progress with respect to the geometry, alignment requirements, scenarios, and hardware for meeting the tolerances of the Final Focus Test Beam (FFTB) at SLAC. The methods and systems proposed acknowledge that component motion at the micron level, from whatever cause (ground motion, thermal effects, etc.) must be measured on-line and compensated for on relatively short time scales. To provide an integrated alignment/positioning package, some unique designs for reference systems, calibration of effect electric and magnetic centers, and component movers are introduced. 24 refs., 28 figs.

  18. Upgrade of the SLAC SLED II Pulse Compression System Based on Recent High Power Tests

    SciTech Connect

    Vlieks, A.E.; Fowkes, W.R.; Loewen, R.J.; Tantawi, S.G.; /SLAC

    2011-09-06

    In the Next Linear Collider (NLC) it is expected that the high power rf components be able to handle peak power levels in excess of 400 MW. We present recent results of high power tests designed to investigate the RF breakdown limits of the X-band pulse compression system used at SLAC. (SLED-II). Results of these tests show that both the TE{sub 01}-TE{sub 10} mode converter and the 4-port hybrid have a maximum useful power limit of 220-250 MW. Based on these tests, modifications of these components have been undertaken to improve their peak field handling capability. Results of these modifications will be presented. As part of an international effort to develop a new 0.5-1.5 TeV electron-positron linear collider for the 21st century, SLAC has been working towards a design, referred to as 'The Next Linear Collider' (NLC), which will operate at 11.424 GHz and utilize 50-75 MW klystrons as rf power sources. One of the major challenges in this design, or any other design, is how to generate and efficiently transport extremely high rf power from a source to an accelerator structure. SLAC has been investigating various methods of 'pulse compressing' a relatively wide rf pulse ({ge} 1 {mu}s) from a klystron into a narrower, but more intense, pulse. Currently a SLED-II pulse compression scheme is being used at SLAC in the NLC Test Accelerator (NLCTA) and in the Accelerator Structures Test Area (ASTA) to provide high rf power for accelerator and component testing. In ASTA, a 1.05 {mu}s pulse from a 50 MW klystron was successfully pulse compressed to 205 MW with a pulse width of 150 ns. Since operation in NLC will require generating and transporting rf power in excess of 400 MW it was decided to test the breakdown limits of the SLED-II rf components in ASTA with rf power up to the maximum available of 400 MW. This required the combining of power from two 50 MW klystrons and feeding the summed power into the SLED-II pulse compressor. Results from this experiment demonstrated that two of the key components of SLED-II; the Magic Tee and the 'Flower Petal' mode converter (converts between TE{sub 10} rectangular and TE{sub 01} circular modes), were not robust enough at higher power levels. Because of this, a major effort is underway to upgrade the existing devices to operate stably at the higher power levels, and also to investigate new components, which have inherently low field enhancement in their design and therefore more robust.

  19. Solid State Induction Modulator Replacement for the Conventional SLAC 5045 Klystron Modulator

    SciTech Connect

    Cassel, Richard

    2000-11-08

    The Next Linear Collider accelerator is developing a high efficiency, highly reliable, and low cost pulsed-power modulator to drive the NLC 500KV, 230A X band klystrons. To demonstrate the feasibility and effectiveness of the proposed induction modulator, a 10 section Solid State Induction Modulator has been assembled to drive a single 5045 klystrons in the SLAC linac. The Induction Modulator replaces the existing modulators PFN/thyratron and drives the klystron using its existing conventional pulse transformer. The status of the proposed thousand-megawatt NLC Solid State induction modulator will be discussed, and the results of the 5045 klystron modulator test.

  20. Progress in L-Band Power Distribution System R&D at SLAC

    SciTech Connect

    Nantista, Christopher; Adolphsen, Chris; Wang, Faya; /SLAC

    2008-10-20

    We report on the L-band RF power distribution system (PDS) developed at SLAC for Fermilab's NML superconducting test accelerator facility. The makeup of the system, which allows tailoring of the power distribution to cavities by pairs, is briefly described. Cold test measurements of the system and the results of high power processing are presented. We also investigate the feasibility of eliminating the expensive, lossy circulators from the PDS by pair-feeding cavities through custom 3-dB hybrids. A computational model is used to simulate the impact on cavity field stability due to the reduced cavity-to-cavity isolation.

  1. Status of the SLAC/LBL/LLNL B-Factory and the BaBar detector

    SciTech Connect

    Oddone, P.

    1994-08-01

    The primary motivation of the Asymmetric B-Factory is the study of CP violation. The decay of B mesons and, in particular, the decay of neutral B mesons, offers the possibility of determining conclusively whether CP violation is part and parcel of the Standard Model with three generations of quarks and leptons. Alternatively, the authors may discover that CP violation lies outside the present framework. In this paper the authors briefly describe the physics reach of the SLAC/LBL/LLNL Asymmetric B-Factory, the progress on the machine design and construction, the progress on the detector design, and the schedule to complete both projects.

  2. Juwen and High Gradient Structure Development From SLAC's SLC to NLC/GLC

    NASA Astrophysics Data System (ADS)

    Miller, R. H.

    2015-10-01

    A Global Effort -- The effort to develop high gradient room temperature accelerator structures for the Next Linear Collider or the Global Linear Collider was a global effort involving many people from a number of laboratories around the world including SLAC, FNAL and LLNL in the US, KEK in Japan and CERN in Europe. Critical ideas came from many sources, so my attributions may not always be accurate, but indicate where I first heard the concept. Juwen Wang's role was very important in accepting, modifying where appropriate, and implementing ideas to produce a long series of structures finally leading to a successful structure.

  3. A 4 to 0.1 nm FEL Based on the SLAC Linac

    SciTech Connect

    Pellegrini, C.; /UCLA

    2012-06-05

    The author show that using existing electron gun technology and a high energy linac like the one at SLAC, it is possible to build a Free Electron Laser operating around the 4 nm water window. A modest improvement in the gun performance would further allow to extend the FEL to the 0.1 nm region. Such a system would produce radiation with a brightness many order of magnitude above that of any synchrotron radiation source, existing or under construction, with laser power in the multigawatt region and subpicosecond pulse length.

  4. Requirements for use of nonmedical x-ray generators at SLAC

    SciTech Connect

    Busick, D.D.

    1984-09-01

    The risks associated with use of x-ray equipment have long been recognized. While the relative frequency of x-ray damage is small, machine produced x-rays and large radiography sources continue to account for a large percentage of preventable radiation injuries reported worldwide. The intent of this report is to formalize SLAC's radiation safety program as it applies to radiation producing equipment (diffraction, fluorescence analysis and nondestructive testing). It does not apply to the two-mile linac, experimental areas or other x-ray producing equipment directly related to the high energy physics program. 4 refs., 3 figs., 1 tab.

  5. Beam-Beam deflection as a beam tuning tool at the SLAC Linear Collider

    SciTech Connect

    Koska, W.; Bambade, P.; Kozanecki, W.; Phinney, N.; Wagner, S.R.

    1989-04-01

    To achieve maximum integrated luminosity at the SLAC Linear Collider, a method of noninvasive beam tuning is required. Traditional luminosity monitors based on Bhabha scattering are inadequate because of low instantaneous counting rates. Coherent deflections of one beam by the electromagnetic field of the other are sensitive not only to the relative steering of the two bunches but also to their spot sizes. A brief description of beam-beam deflection theory forms the basis for a discussion of this phenomenon as a tool for single-beam tuning and for luminosity optimization at the interaction point of the SLC. 13 refs., 5 figs.

  6. Biology of the Mi-2/NuRD Complex in SLAC (Stemness, Longevity/Ageing, and Cancer)

    PubMed Central

    Zhang, Yue

    2011-01-01

    The dynamic chromatin activities of Mi-2/Nucleosome Remodeling and Histone deacetylation (Mi-2/NuRD) complexes in mammals are at the basis of current research on stemness, longevity/ageing, and cancer (4-2-1/SLAC), and have been widely studied over the past decade in mammals and the elegant model organism, Caenorhabditis elegans. Interestingly, a common emergent theme from these studies is that of distinct coregulator-recruited Mi-2/NuRD complexes largely orchestrating the 4-2-1/SLAC within a unique paradigm by maintaining genome stability via DNA repair and controlling three types of transcriptional programs in concert in a number of cellular, tissue, and organism contexts. Thus, the core Mi-2/NuRD complex plays a central role in 4-2-1/SLAC. The plasticity and robustness of 4-2-1/SLAC can be interpreted as modulation of specific coregulator(s) within cell-specific, tissue-specific, stage-specific, or organism-specific niches during stress induction, ie, a functional module and its networking, thereby conferring differential responses to different environmental cues. According to “Occam’s razor”, a simple theory is preferable to a complex one, so this simplified notion might be useful for exploring 4-2-1/SLAC with a holistic view. This thought could also be valuable in forming strategies for future research, and could open up avenues for cancer prevention and antiageing strategies. PMID:21523247

  7. Recent Changes in Summer Sessions of U.S. and Canadian Colleges and Universities.

    ERIC Educational Resources Information Center

    Young, Raymond J.; McDougall, William P.

    A study of summer sessions at U.S. and Canadian colleges and universities was conducted in 1985. A stratified random sample of 213 U.S. public and private institutions included research universities, doctoral-granting institutions, and comprehensive colleges and universities; all 10 Canadian institutions were featured in the study. A total of 184…

  8. The Summer of Hydrogen

    NASA Technical Reports Server (NTRS)

    Weber, Philip

    2008-01-01

    Ground crew veterans at Kennedy Space Center still talk about what they call "the summer of hydrogen"-the long, frustrating months in 1990 when the shuttle fleet was grounded by an elusive hydrogen leak that foiled our efforts to fill the orbiter's external fuel tank. Columbia (STS-35) was on Launch Pad A for a scheduled May 30 launch when we discovered the hydrogen leak during - tanking. The external fuel tank is loaded through the orbiter. Liquid hydrogen flows through a 17-inch umbilical between the orbiter and the tank. During fueling, we purge the aft fuselage with gaseous nitrogen to reduce the risk of fire, and we have a leak-detection system in the mobile launch platform, which samples (via tygon tubing) the atmosphere in and around the vehicle, drawing it down to a mass spectrometer that analyzes its composition. When we progressed to the stage of tanking where liquid hydrogen flows through the vehicle, the concentration of hydrogen approached four percent-the limit above which it would be dangerously flammable. We had a leak. We did everything we could think of to find it, and the contractor who supplied the flight hardware was there every day, working alongside us. We did tanking tests, which involved instrumenting the suspected leak sources, and cryo-loaded the external tank to try to isolate precisely where the leak originated. We switched out umbilicals; we replaced the seals between the umbilical and the orbiter. We inspected the seals microscopically and found no flaws. We replaced the recirculation pumps, and we found and replaced a damaged teflon seal in a main propulsion system detent cover, which holds the prevalve-the main valve supplying hydrogen to Space Shuttle Main Engine 3 -in the open position. The seal passed leak tests at ambient temperature but leaked when cryogenic temperatures were applied. We added new leak sensors-up to twenty at a time and tried to be methodical in our placements to narrow down the possible sources of the problem. We even switched orbiters, sending Columbia back to the Vehicle Assembly Building and bringing out Atlantis, scheduled to fly as STS-38. Two shuttles on their mobile launchers passing in the night was a majestic sight, but not one you want to see if you're trying to get an orbiter launched. None of this told us where the leak was, or if we were dealing with more than one leak source.

  9. 77 FR 65896 - National Institute of Neurological Disorders and Stroke; Notice of Closed Meetings

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-31

    ... HUMAN SERVICES National Institutes of Health National Institute of Neurological Disorders and Stroke... personal privacy. Name of Committee: National Institute of Neurological Disorders and Stroke Special... Disorders and Stroke Special Emphasis Panel; Summer Research Experience Programs (R25). Date: November...

  10. A Good Start? The Impact of Texas' Developmental Summer Bridge Program on Student Success

    ERIC Educational Resources Information Center

    Wathington, Heather; Pretlow, Joshua; Barnett, Elisabeth

    2016-01-01

    Summer bridge programs have long been utilized by postsecondary institutions to improve the college readiness of students; however, the research on their effectiveness is limited. This study presents evidence from an experimental study of one summer bridge program model specifically designed for recent high school graduates who placed into…

  11. Application Deadlines - CPFP Summer Curriculum in Cancer Prevention Courses 2016 | Division of Cancer Prevention

    Cancer.gov

    The National Cancer Institute (NCI) Cancer Prevention Fellowship Program (CPFP) is now accepting applications for the Summer Curriculum in Cancer Prevention until February 26, 2016 for international applicants and March 15, 2016 for domestic applicants. For more information and to apply, please visit: cpfp.cancer.gov/summer. |

  12. Application Deadlines - CPFP Summer Curriculum in Cancer Prevention Courses 2016 | Division of Cancer Prevention

    Cancer.gov

    The National Cancer Institute (NCI) Cancer Prevention Fellowship Program (CPFP) is now accepting applications for the Summer Curriculum in Cancer Prevention until February 26, 2016 for international applicants and March 15, 2016 for domestic applicants. For more information and to apply, please visit: cpfp.cancer.gov/summer.

  13. Measurements of ultimate accelerating gradients in the SLAC disk-loaded structure. Part I

    SciTech Connect

    Wang, J.W.; Loew, G.A.

    1985-01-01

    The work reported here describes measurements made to study the maximum attainable accelerating gradients in a conventional SLAC disk-loaded accelerator section of the constant-gradient type running at 2856 MHz. The objective was to reach an accelerating gradient of at least 100 MV/m. The accelerating gradient at which the SLAC disk-loaded waveguide runs routinely is approx. 9 MV/m (36 MW tubes without SLED) and approx. 12 MV/m with SLED I (2.5 ..mu..sec pulse). To reach 100 MV/m in a conventional 3 m constant-gradient section, one would need a klystron with a peak power output of 900 MW. since such a tube is not available, we decided to use a short standing-wave section in which the resonant fields would be allowed to build up. The design criteria for this section, the fabrication, matching and tuning, the experimental set-up and the results are described below.

  14. Production of high intensity electron bunches for the SLAC Linear Collider

    SciTech Connect

    James, M.B.

    1987-08-01

    This thesis describes the design and performance of a high intensity electron injecfor for the SLAC Linear Collider. Motivation for the collider and the specifications for the injector are discussed. An analytic theory of the bunching and capture of electrons by rf fields is discussed in the limit of low space charge and small signal. The design and performance of SLAC's main injector are described to illustrate a successful application of this theory. The bunching and capture of electrons by rf fields are then discussed in the limit of high space charge and large signal, and a description of the design of the collider injector follows. In the limit of high space charge forces and large rf signals, the beam dynamics are considerably more complex and numerical simulations are required to predict particle motion. A computer code which models the longitudinal dynamics of electrons in the presence of space charge and rf fields is described. The results of the simulations, the resulting collider injector design and the various components which make up the collider injector are described. These include the gun, subharmonic bunchers, traveling-wave buncher and velocity-of-light accelerator section. Finally, the performance of the injector is described including the beam intensity, bunch length, transverse emittance and energy spectrum. While the final operating conditions differ somewaht from the design, the performance of the collider injector is in good agreement with the numerical simulations and meets all of the collider specifications. 28 refs.

  15. Advocacy for the Archives and History Office of the SLAC National Accelerator Laboratory: Stages and Methods

    SciTech Connect

    Deken, Jean Marie; /SLAC

    2009-06-19

    Advocating for the good of the SLAC Archives and History Office (AHO) has not been a one-time affair, nor has it been a one-method procedure. It has required taking time to ascertain the current and perhaps predict the future climate of the Laboratory, and it has required developing and implementing a portfolio of approaches to the goal of building a stronger archive program by strengthening and appropriately expanding its resources. Among the successful tools in the AHO advocacy portfolio, the Archives Program Review Committee has been the most visible. The Committee and the role it serves as well as other formal and informal advocacy efforts are the focus of this case study My remarks today will begin with a brief introduction to advocacy and outreach as I understand them, and with a description of the Archives and History Office's efforts to understand and work within the corporate culture of the SLAC National Accelerator Laboratory. I will then share with you some of the tools we have employed to advocate for the Archives and History Office programs and activities; and finally, I will talk about how well - or badly - those tools have served us over the past decade.

  16. From the {psi} to charmed mesons: Three years with the SLAC-LBL detector at SPEAR

    SciTech Connect

    Goldhaber, G.

    1992-06-01

    As I look back at the first three years or so at SPEAR, I consider this one of the most revolutionary or perhaps the most revolutionary, experiment in the 60 year history of particle physics. It certainly was the most exciting time, in a laboratory that is, that I have ever experienced. In my talk I will cover the period 1973--1976 which saw the discoveries of the {psi} and {psi}{prime} resonances the {chi} states and most of the Psion spectroscopy, the D{degree}, D{sup +}* charmed meson doublet as well as the D{degree}* and D{sup +}* doublet. I will also refer briefly to some more recent results. Most of the discoveries I will mention were made with the SLAC-LBL Magnetic Detector or ``MARK I`` which we operated at SPEAR from 1973 to 1976. In 1976 the MARK I was modified to include a ``Lead Glass Wall`` (LGW) for improved photon and electron detection. This involved a new physics group from LBL, who built the LGW, Lina Barbaro-Galtieri et al. as well as a continuing group from SLAC, Martin Perl and Gary Feldman et al. to provide continuity in the running of the MARK I and to continue the study of the anomalous e{mu}events which Martin found earlier and which eventually were identified as the signature of the {tau} lepton.

  17. Gallium arsenide digital integrated circuits for controlling SLAC CW-RF systems

    SciTech Connect

    Ronan, M.T.; Lee, K.L.; Corredoura, P.; Judkins, J.G.

    1988-10-01

    In order to fill the PEP and SPEAR storage rings with beams from the SLC linac and damping rings, precise control of the linac subharmonic buncher and the damping ring RF is required. Recently several companies have developed resettable GaAs master/slave D-type flip-flops which are capable of operating at frequencies of 3 GHz and higher. Using these digital devices as frequency dividers, one can phase shift the SLAC CW-RF systems to optimize the timing for filling the storage rings. We have evaluated the performance of integrated circuits from two vendors for our particular application. Using microstrip circuit techniques, we have built and operated in the accelerator several chassis to synchronize a reset signal from the storage rings to the SLAC 2.856 GHz RF and to phase shift divide-by-four and divide-by-sixteen frequency dividers to the nearest 350 psec bucket required for filling. 4 refs., 4 figs., 2 tabs.

  18. Parameters for the PEP-II B-Factory at SLAC in 2008

    SciTech Connect

    Seeman, J.; Akre, R.; Bellomo, P.; Bertsche, Kirk J.; Chai, Y.; Chestnut, R.; Clendenin, J.; DeBarger, S.; Decker, F.J.; Dorfan, J.; Ecklund, S.; Erickson, R.; Fisher, A.; Fox, J.; Heifets, S.; Himel, T.; Iverson, R.; Humphrey, R.; Irwin, J.; Klaisner, L.; Kharakh, D.; /SLAC /LBL, Berkeley /Frascati

    2011-11-22

    The PEP-II B-Factory at SLAC (3.1 GeV e{sup +} x 9.0 GeV e{sup -}) operated from 1999 to 2008, delivering luminosity to the BaBar experiment. The design luminosity was reached after one and a half years of operation. In the end PEP-II surpassed, by four times, its design luminosity reaching 1.21 x 10{sup 34} cm{sup -2}s{sup -1}. It also set world stored beam current records of 2.1 A e{sup -} and 3.2 A e{sup +}. Continuous injection was implemented with BaBar successfully taking data. The total delivered luminosity to the BaBar detector was 557.4 fb{sup -1} spanning five upsilon resonances. PEP-II was constructed by SLAC, LBNL, and LLNL with help from BINP, IHEP, the BaBar collaboration, and the US DOE OHEP.

  19. The UCLA/SLAC Ultra-High Gradient Cerenkov Wakefield Accelerator Experiment

    SciTech Connect

    Thompson, M.C.; Badakov, H.; Rosenzweig, J.B.; Travish, G.; Hogan, M.; Ischebec, R.; Siemann, R.; Walz, D.; Scott, A.; Yoder, R.; /Manhattan Coll., Riverdale

    2006-01-25

    An experiment is planned to study the performance of dielectric Cerenkov wakefield accelerating structures at extremely high gradients in the GV/m range. This new UCLA/SLAC/USC collaboration will take advantage of the unique SLAC FFTB electron beam and its demonstrated ultra-short pulse lengths and high currents (e.g., {delta}{sub z} = 20 {micro}m at Q = 3 nC). The electron beam will be focused down and sent through varying lengths of fused silica capillary tubing with two different sizes: ID = 200 {micro}m/OD = 325 {micro}m and ID = 100 {micro}m/OD = 325 {micro}m. The pulse length of the electron beam will be varied in order to alter the accelerating gradient and probe the breakdown threshold of the dielectric structures. In addition to breakdown studies, we plan to collect and measure coherent Cerenkov radiation emitted from the capillary tube to gain information about the strength of the accelerating fields.

  20. Guard cell SLAC1-type anion channels mediate flagellin-induced stomatal closure.

    PubMed

    Guzel Deger, Aysin; Scherzer, Sönke; Nuhkat, Maris; Kedzierska, Justyna; Kollist, Hannes; Brosché, Mikael; Unyayar, Serpil; Boudsocq, Marie; Hedrich, Rainer; Roelfsema, M Rob G

    2015-10-01

    During infection plants recognize microbe-associated molecular patterns (MAMPs), and this leads to stomatal closure. This study analyzes the molecular mechanisms underlying this MAMP response and its interrelation with ABA signaling. Stomata in intact Arabidopsis thaliana plants were stimulated with the bacterial MAMP flg22, or the stress hormone ABA, by using the noninvasive nanoinfusion technique. Intracellular double-barreled microelectrodes were applied to measure the activity of plasma membrane ion channels. Flg22 induced rapid stomatal closure and stimulated the SLAC1 and SLAH3 anion channels in guard cells. Loss of both channels resulted in cells that lacked flg22-induced anion channel activity and stomata that did not close in response to flg22 or ABA. Rapid flg22-dependent stomatal closure was impaired in plants that were flagellin receptor (FLS2)-deficient, as well as in the ost1-2 (Open Stomata 1) mutant, which lacks a key ABA-signaling protein kinase. By contrast, stomata of the ABA protein phosphatase mutant abi1-1 (ABscisic acid Insensitive 1) remained flg22-responsive. These data suggest that the initial steps in flg22 and ABA signaling are different, but that the pathways merge at the level of OST1 and lead to activation of SLAC1 and SLAH3 anion channels. PMID:25932909

  1. Potentials Unlimited: A Summer Happening.

    ERIC Educational Resources Information Center

    Croskery, Beverly; Marten, Mary Elizabeth

    1980-01-01

    The article describes Potentials Unlimited, a summer camp program for gifted intermediate grade students in Cincinnati, Ohio. Aspects covered include priorities in selecting curricular activities and some of the camp activities themselves. (DLS)

  2. The year without a summer

    NASA Astrophysics Data System (ADS)

    Luterbacher, J.; Pfister, C.

    2015-04-01

    The 1815 eruption of Tambora caused an unusually cold summer in much of Europe in 1816. The extreme weather led to poor harvests and malnutrition, but also demonstrated the capability of humans to adapt and help others in worse conditions.

  3. Summer Safety Tips - Staying Safe Outdoors

    MedlinePLUS

    ... News Listen Español Text Size Email Print Share Summer Safety Tips: Staying Safe Outdoors Page Content Article ... eye wear at all times. ​ Healthy Children Radio: Summer Safety Tips (Audio) Summer is full of fun ...

  4. Summer Final Report

    NASA Technical Reports Server (NTRS)

    Makidi, Nitou

    2012-01-01

    The summer of 2012 has been filled with many memorable events and activities. As an intern, I had responsibilities that had to be fulfilled. My tour of duty was completed as an administrative student trainee in the Information Technology and Communications Services Business Office (IT-A). In accordance with the Business Objectives and Agreement of the Business Office and my performance plan, I was to provide business office support, improve business, project management, and technical work processes. With this being stated, I supported a project called "The Big Move Project" (TBMP), which will take course over the next several years. The Big Move Project is the planning of the Information Technology (IT) Directorate's relocation to various buildings in the course of upcoming years, when designs and the building of Central Campus have been completed. Working directly with my supervisor and the project manager, I was responsible for gathering both administrative and operational area requirements for the Information Technology (IT) Directorate, along with its outsourced support and contractors, such as IMCS, NICS, and ACES. My first action was to create rubrics that will serve as a guideline for the information that should be given by each branch of IT. After receiving that information via a few KAITS actions, I was able to start the consolidation process, and begin working on a presentation. A SharePoint was created shortly after for others to view the progression of the project, which I managed. During the consolidation ofthis information, I would occasionally present to the IT Deputy Director and IT Chiefs. The draft of this presentation was shown to employees of Center Operations (T A) and stakeholders-IT Chief Officers and contractor managers-in the relocation of IT to make them aware of what requirements must be met that will enable IT to be accommodated appropriately in the design of Central Campus Phase 11-the time in which IT and its contractors are scheduled to be relocated. Besides supporting TBMP, I also supported the Section 508 Policy Compliance Coordinator, R. Liang. Section 508 is a policy that requires employers to implement accessibility assurance of information and technology to disabled communities. On Thursday, July 19, 2012, I was able to go to Camp Boggy Creek-a camp for disabled children-for an education outreach, in collaboration with the Education Office. We shared with them information about how astronauts live and work in space, they were able to ride hovercrafts, build paper rockets, and then launch them outside. Although this outreach was quite fun with the kids at the camp, this was a learning opportunity to gain some insight to those with cognitive and physical disabilities, the problems they typically face, and in tum, how to accommodate those with disabilities in the work environment. In the process of implementing accessibility and Section 508 compliance, I attended various teleconferences, did field runs to supply closed-caption call phones to employees with limited hearing, and helped with the development of the charter ofthe Section 508 Compliance Working Group.

  5. SLAC1 is required for plant guard cell S-type anion channel function in stomatal signalling.

    PubMed

    Vahisalu, Triin; Kollist, Hannes; Wang, Yong-Fei; Nishimura, Noriyuki; Chan, Wai-Yin; Valerio, Gabriel; Lamminmäki, Airi; Brosché, Mikael; Moldau, Heino; Desikan, Radhika; Schroeder, Julian I; Kangasjärvi, Jaakko

    2008-03-27

    Stomatal pores, formed by two surrounding guard cells in the epidermis of plant leaves, allow influx of atmospheric carbon dioxide in exchange for transpirational water loss. Stomata also restrict the entry of ozone--an important air pollutant that has an increasingly negative impact on crop yields, and thus global carbon fixation and climate change. The aperture of stomatal pores is regulated by the transport of osmotically active ions and metabolites across guard cell membranes. Despite the vital role of guard cells in controlling plant water loss, ozone sensitivity and CO2 supply, the genes encoding some of the main regulators of stomatal movements remain unknown. It has been proposed that guard cell anion channels function as important regulators of stomatal closure and are essential in mediating stomatal responses to physiological and stress stimuli. However, the genes encoding membrane proteins that mediate guard cell anion efflux have not yet been identified. Here we report the mapping and characterization of an ozone-sensitive Arabidopsis thaliana mutant, slac1. We show that SLAC1 (SLOW ANION CHANNEL-ASSOCIATED 1) is preferentially expressed in guard cells and encodes a distant homologue of fungal and bacterial dicarboxylate/malic acid transport proteins. The plasma membrane protein SLAC1 is essential for stomatal closure in response to CO2, abscisic acid, ozone, light/dark transitions, humidity change, calcium ions, hydrogen peroxide and nitric oxide. Mutations in SLAC1 impair slow (S-type) anion channel currents that are activated by cytosolic Ca2+ and abscisic acid, but do not affect rapid (R-type) anion channel currents or Ca2+ channel function. A low homology of SLAC1 to bacterial and fungal organic acid transport proteins, and the permeability of S-type anion channels to malate suggest a vital role for SLAC1 in the function of S-type anion channels. PMID:18305484

  6. The Summer Robotic Autonomy Course

    NASA Technical Reports Server (NTRS)

    Nourbakhsh, Illah R.

    2002-01-01

    We offered a first Robotic Autonomy course this summer, located at NASA/Ames' new NASA Research Park, for approximately 30 high school students. In this 7-week course, students worked in ten teams to build then program advanced autonomous robots capable of visual processing and high-speed wireless communication. The course made use of challenge-based curricula, culminating each week with a Wednesday Challenge Day and a Friday Exhibition and Contest Day. Robotic Autonomy provided a comprehensive grounding in elementary robotics, including basic electronics, electronics evaluation, microprocessor programming, real-time control, and robot mechanics and kinematics. Our course then continued the educational process by introducing higher-level perception, action and autonomy topics, including teleoperation, visual servoing, intelligent scheduling and planning and cooperative problem-solving. We were able to deliver such a comprehensive, high-level education in robotic autonomy for two reasons. First, the content resulted from close collaboration between the CMU Robotics Institute and researchers in the Information Sciences and Technology Directorate and various education program/project managers at NASA/Ames. This collaboration produced not only educational content, but will also be focal to the conduct of formative and summative evaluations of the course for further refinement. Second, CMU rapid prototyping skills as well as the PI's low-overhead perception and locomotion research projects enabled design and delivery of affordable robot kits with unprecedented sensory- locomotory capability. Each Trikebot robot was capable of both indoor locomotion and high-speed outdoor motion and was equipped with a high-speed vision system coupled to a low-cost pan/tilt head. As planned, follow the completion of Robotic Autonomy, each student took home an autonomous, competent robot. This robot is the student's to keep, as she explores robotics with an extremely capable tool in the midst of a new community for roboticists. CMU provided undergraduate course credit for this official course, 16-162U, for 13 students, with all other students receiving course credit from National Hispanic University.

  7. PD Pathways: Attending a Science Institute

    ERIC Educational Resources Information Center

    Ashmann, Scott; Marcou, Darcy; Lange, Melissa; Konitzer, Andrea

    2010-01-01

    For two weeks during Summer 2009, three elementary school teachers--Darcy Marcou, Melissa Lange, and Andrea Konitzer--participated in a science institute directed by Scott Ashmann, a science education professor at the University of Wisconsin-Green Bay. The purpose of this institute for elementary school teachers was to learn (a) more about Earth…

  8. PD Pathways: Attending a Science Institute

    ERIC Educational Resources Information Center

    Ashmann, Scott; Marcou, Darcy; Lange, Melissa; Konitzer, Andrea

    2010-01-01

    For two weeks during Summer 2009, three elementary school teachers--Darcy Marcou, Melissa Lange, and Andrea Konitzer--participated in a science institute directed by Scott Ashmann, a science education professor at the University of Wisconsin-Green Bay. The purpose of this institute for elementary school teachers was to learn (a) more about Earth…

  9. Institution Libraries in Nebraska; A Survey Report.

    ERIC Educational Resources Information Center

    Scott, Sandra

    During the summer of 1981, 15 state-supported institutional libraries in Nebraska completed self-evaluation forms on their library operations, constituents, and collections. Institutions included were adult correctional facilities, youth facilities, mental health/mental retardation facilities, and veterans' homes. It was found that institutions…

  10. Institution Closures.

    ERIC Educational Resources Information Center

    Hayden, Mary F., Ed.; And Others

    1995-01-01

    This newsletter theme issue focuses on the need to accelerate the closing of institutions for people with mental retardation. Articles are by both current and former residents of institutions and by professionals, and include: "The Realities of Institutions" (Tia Nelis); "I Cry Out So That I Won't Go Insane" (Mary F. Hayden); "Trends in…

  11. SLAC collider injector, RF-drive synchronization and trigger electronics, and 15-AMP thermionic-gun development

    SciTech Connect

    Koontz, R.; Miller, R.; McKinney, T.; Wilmunder, A.

    1981-02-01

    The rf drive system for the Collider Injector Development (EL CID) including laser timing, subharmonic buncher drive and phasing, and accelerator rf drive is described. The rf synchronized master trigger generation scheme for the collider is outlined. Also, a 15 amp peak, 200 kV short pulse gun being developed at SLAC as a backup to the Sinclair laser gun is described.

  12. A summary of ground motion effects at SLAC (Stanford Linear Accelerator Center) resulting from the Oct 17th 1989 earthquake

    SciTech Connect

    Ruland, R.E.

    1990-08-01

    Ground motions resulting from the October 17th 1989 (Loma Prieta) earthquake are described and can be correlated with some geologic features of the SLAC site. Recent deformations of the linac are also related to slow motions observed over the past 20 years. Measured characteristics of the earthquake are listed. Some effects on machine components and detectors are noted. 18 refs., 16 figs.

  13. Summer Ice and Carbon Dioxide

    NASA Astrophysics Data System (ADS)

    Kukla, G.; Gavin, J.

    1981-10-01

    The extent of Antarctic pack ice in the summer, as charted from satellite imagery, decreased by 2.5 million square kilometers between 1973 and 1980. The U.S. Navy and Russian atlases and whaling and research ship reports from the 1930's indicate that summer ice conditions earlier in this century were heavier than the current average. Surface air temperatures along the seasonally shifting belt of melting snow between 55 degrees and 80 degrees N during spring and summer were higher in 1974 to 1978 than in 1934 to 1938. The observed departures in the two hemispheres qualitatively agree with the predicted impact of an increase in atmospheric carbon dioxide. However, since it is not known to what extent the changes in snow and ice cover and in temperature can be explained by the natural variability of the climate system or by other processes unrelated to carbon dioxide, a cause-and-effect relation cannot yet be established.

  14. Summer ice and carbon dioxide

    SciTech Connect

    Kukla, G.; Gavin, J.

    1981-10-30

    The extent of Antarctic pack ice in the summer, as charted from satellite imagery, decreased by 2.5 million square kilometers between 1973 and 1980. The U.S. Navy and Russian atlases and whaling and reseach ship reports from the 1930's indicate that summer ice conditions earlier in this century were heavier than the current average. Surface air temperatures along the seasonally shifting belt of melting snow between 55/sup o/ and 80/sup o/N during spring and summer were higher in 1974 to 1978 than in 1934 to 1938. The observed departures in the two hemispheres qualitatively agree with the predicted impact of an increase in atmospheric carbon dioxide. However, since it is not known to what extent the changes in snow and ice cover and in temperature can be explained by the natural variability of the climate system or by other processes unrelated to carbon dioxide, a cause-and-effect relation cannot yet be established.

  15. Summer Fun in the Sun

    NASA Astrophysics Data System (ADS)

    Alexander, D.; Noldon, D.

    2002-05-01

    We report here on the development of a program to incorporate a math/science component, emphasizing space science and solar physics, into an existing set of summer activities sponsored by the National Youth Sports Program (NYSP). NYSP provides summer sports and classroom training components to youth whose families fall within federal poverty guidelines. Recently, a partnership between Lockheed Martin Solar and Astrophysics Lab. and Chabot Community College received NASA IDEAS funding to develop a summer curriculum in math and science to augment the already successful program. This provides an opportunity to significantly enhance the experience of the participating students by giving them access to the latest in space data and direct interaction with space scientists. This paper discusses our goals, our approach and the current status of our curricular materials. We would like to acknowledge funding by the National Youth Sports Program and NASA IDEAS.

  16. NASA-ASEE Summer Faculty Fellowship Program at NASA Lewis Research Center

    NASA Technical Reports Server (NTRS)

    Prahl, Joseph M.; Keith, Theo G., Jr.; Montegani, Francis J.

    1996-01-01

    During the summer of 1996, a ten-week Summer Faculty Fellowship Program was conducted at the NASA Lewis Research Center (LeRC) in collaboration with Case Western Reserve University (CWRU), and the Ohio Aerospace Institute (OAI). This is the thirty-third summer of this program at Lewis. It was one of nine summer programs sponsored by NASA in 1996, at various field centers under the auspices of the American Society for Engineering Education (ASEE). The objectives of the program are: (1) to further the professional knowledge of qualified engineering and science educators, (2) to stimulate an exchange of ideas between participants and NASA, (3) to enrich and refresh the research activities of participants' institutions. (4) to contribute to the research objectives of LeRC. This report is intended to recapitulate the activities comprising the 1996 Lewis Summer Faculty Fellowship Program, to summarize evaluations by the participants, and to make recommendations regarding future programs.

  17. Research at SLAC towards a 0. 5 TeV linear collider

    SciTech Connect

    Ruth, R.D.

    1990-06-01

    The purpose of this paper is to review the ongoing research at SLAC toward a next-generation linear collider (NLC). The energy of the collider is taken to be 0.5 TeV in the CM with view towards upgrading to 1.0 TeV. The luminosity is in the range of 10{sup 33} to 10{sup 34} cm{sup {minus}2} sec {sup {minus}1}. The energy is achieved by acceleration with a gradient of about a factor of five higher than SLC, which yields a linear collider approximately twice as long as SLC. The detailed trade-off between length and acceleration will be based on total cost. A very broad optimum occurs when the total linear costs equal the total cost of RF power. 36 refs., 3 figs., 3 tabs.

  18. Lattice design for the high energy ring of the SLAC B-Factory (PEP-II)

    SciTech Connect

    Donald, M.H.R.; Cai, Y.; Irwin, J.

    1995-04-01

    The design of the lattice for the High Energy Ring (HER) of the SLAC B-Factory has several special features, notably provision for octupole compensation of amplitude dependent tune shift effects and a beta-beat scheme for semi-local chromaticity correction. In the arcs adjacent to the interaction point (IP) the beta functions are enhanced to allow the use of non-interlaced sextupoles to compensate the chromaticity of the interaction region. A closed bump of beta {open_quotes}mismatch{close_quotes} is generated by two vertically focusing quadrupoles spaced 2 betatron wavelengths apart. The beta-beat has two advantages: it enhances the ratio between the horizontal and vertical beta functions at the sextupoles and, because of the locally higher beta function, allows weaker sextupoles to be used. The standard design uses a 60 degree/cell lattice but a 90 degree/cell lattice may also be used if lower emittances and momentum compaction factor are desired.

  19. Emittance Studies of the BNL/SLAC/UCLA 1.6 Cell Photocathode RF Gun

    SciTech Connect

    Palmer, D.T.; Wang, X.J.; Miller, R.H.; Babzien, M.; Ben-Zvi, I.; Pellegrini, C.; Sheehan, J.; Skaritka, J.; Winick, H.; Woodle, M.; Yakimenko, V.; /Brookhaven

    2011-09-09

    The symmetrized 1.6 cell S-band photocathode gun developed by the BNL/SLAC/UCLA collaboration is in operation at the Brookhaven Accelerator Test Facility (ATF). A novel emittance compensation solenoid magnet has also been designed, built and is in operation at the ATF. These two subsystems form an emittance compensated photoinjector used for beam dynamics, advanced acceleration and free electron laser experiments at the ATF. The highest acceleration field achieved on the copper cathode is 150 MV/m, and the guns normal operating field is 130 MV/m. The maximum rf pulse length is 3 {mu}s. The transverse emittance of the photoelectron beam were measured for various injection parameters. The 1 nC emittance results are presented along with electron bunch length measurements that indicated that at above the 400 pC, space charge bunch lengthening is occurring. The thermal emittance, {epsilon}{sub o}, of the copper cathode has been measured.

  20. Optics Design for a Soft X-ray FEL at the SLAC A-Line

    SciTech Connect

    Geng, H; Ding, Y.; Emma, P.; Huang, Z.; Nosochkov, Y.; Woodley, M.; /SLAC

    2009-05-15

    LCLS capabilities can be significantly extended with a second undulator aiming at the soft x-ray spectrum (1-5 nm). To allow for simultaneous hard and soft x-ray operations, 14 GeV beams at the end of the LCLS accelerator can be intermittently switched into the SLAC A-line (the beam transport line to End Station A) where the second undulator may be located. In this paper, we discuss the A-line optics design for transporting the high-brightness LCLS beams using the existing tunnel. To preserve the high brightness of the LCLS beams, special attention is paid to effects of incoherent and coherent synchrotron radiation. Start-to-end simulations using realistic LCLS beam distributions are carried out.

  1. Ultra High Energy Cosmic Rays and the Fluorescence in Air Showers (flash) Experiment at SLAC

    NASA Astrophysics Data System (ADS)

    Matthews, John N.

    2004-10-01

    The High Resolution Fly's Eye collaboration has measured the spectrum of cosmic rays above 1017 eV using the air fluorescence technique. It is now possible to observe structure within this spectrum including a steep fall which is consistent with a GZK cut-off. This steep fall is inconsistent with measurements made by the AGASA ground array detector which indicates a continuing spectrum above 1019.5 eV. A difference in energy scales between the experiments could be part of the problem. A new collaboration, FLASH, has been formed to re-measure the fluorescence yield and its contribution to the uncertainty in the energy scale. A test run successfully demonstrated the feasibility of making these measurements at the Stanford Linear Accelerator Center. A program of three short experiments (E-165) has been approved by the SLAC experimental program advisory committee and the experiment has now been scheduled for beam time.

  2. Computer modelling of bunch-by-bunch feedback for the SLAC B-factory design

    SciTech Connect

    Briggs, D.; Fox, J.D.; Hosseini, W.; Klaisner, L.; Morton, P.; Pellegrin, J.L.; Thompson, K.A. ); Lambertson, G. )

    1991-05-01

    The SLAC B-factory design, with over 1600 high current bunches circulating in each ring, will require a feedback system to avoid coupled-bunch instabilities. A computer model of the storage ring, including the RF system, wave fields, synchrotron radiation loss, and the bunch-by-bunch feedback system is presented. The feedback system model represents the performance of a fast phase detector front end (including system noise and imperfections), a digital filter used to generate a correction voltage, and a power amplifier and beam kicker system. The combined ring-feedback system model is used to study the feedback system performance required to suppress instabilities and to quantify the dynamics of the system. Results are presented which show the time development of coupled bunch instabilities and the damping action of the feedback system. 3 refs., 5 figs., 2 tabs.

  3. 3D Modeling Activity for Novel High Power Electron Guns at SLAC

    SciTech Connect

    Krasnykh, Anatoly

    2003-07-29

    The next generation of powerful electronic devices requires new approaches to overcome the known limitations of existing tube technology. Multi-beam and sheet beam approaches are novel concepts for the high power microwave devices. Direct and indirect modeling methods are being developed at SLAC to meet the new requirements in the 3D modeling. The direct method of solving of Poisson's equations for the multi-beam and sheet beam guns is employed in the TOPAZ 3D tool. The combination of TOPAZ 2D and EGUN (in the beginning) with MAFIA 3D and MAGIC 3D (at the end) is used in an indirect method to model the high power electron guns. Both methods complement each other to get reliable representation of the beam trajectories. Several gun ideas are under consideration at the present time. The collected results of these simulations are discussed.

  4. Facility for Advanced Accelerator Experimental Tests (FACET) at SLAC and its Radiological Considerations

    SciTech Connect

    Mao, X.S.; Leitner, M.Santana; Vollaire, J.

    2011-08-22

    Facility for Advanced Accelerator Experimental Tests (FACET) in SLAC will be used to study plasma wakefield acceleration. FLUKA Monte Carlo code was used to design a maze wall to separate FACET project and LCLS project to allow persons working in FACET side during LCLS operation. Also FLUKA Monte Carlo code was used to design the shielding for FACET dump to get optimum design for shielding both prompt and residual doses, as well as reducing environmental impact. FACET will be an experimental facility that provides short, intense pulses of electrons and positrons to excite plasma wakefields and study a variety of critical issues associated with plasma wakefield acceleration [1]. This paper describes the FACET beam parameters, the lay-out and its radiological issues.

  5. An Ultra-High Gradient Cherenkov Wakefield Acceleration Experiment at SLAC FFTB

    SciTech Connect

    Rosenzweig, J.B.; Hoover, S.; Hogan, M.J.; Muggli, P.; Thompson, M.; Travish, G.; Yoder, R.; /UCLA /SLAC /Southern California U.

    2005-08-02

    The creation of ultra-high current, ultra-short pulse beams Q=3 nC, {sigma}{sub z} = 20{micro}m at the SLAC FFTB has opened the way for very high gradient plasma wakefield acceleration experiments. We study here the use of these beams in a proposed Cherenkov wakefield experiment, where one may excite electromagnetic wakes in a simple dielectric tube with inner diameter of few 100 microns that exceed the GV/m level. We discuss the scaling of the fields with design geometric design parameters, and choice of dielectric. We also examine measurable aspects of the experiment, such as the total coherent Cerenkov radiation energy one may collect, and the expected aspects of dielectric breakdown at high fields.

  6. Analysis of the Wakefield Effects in the PEP-II SLAC B-FACTORY

    SciTech Connect

    Novokhatski, A; Seeman, J.; Sullivan, M.; Wienands, U.; /SLAC

    2009-07-06

    We present the history and analysis of different wake field effects throughout the operational life of the PEP-II SLAC B-factory. Although the impedance of the high and low energy rings is small, the intense high current beams generated a lot of power. The effects from these wake fields are: heating and damage of vacuum beam chamber elements like RF seals, vacuum valves , shielded bellows, BPM buttons and ceramic tiles; vacuum spikes, vacuum instabilities and high detector background; beam longitudinal and transverse instabilities. We also discuss the methods used to eliminate these effects. Results of this analysis and the PEP-II experience may be very useful in the design of new storage rings and light sources.

  7. The Linac Coherent Light Source at SLAC. Radiological Considerations and Shielding calculations

    SciTech Connect

    Mao, X.S.; Fasso, A.; Nakao, N.; Rokni, S.H.; Vincke, H.; /SLAC

    2005-12-02

    The Linac Coherent Light Source (LCLS) at SLAC will be the world's first X-ray free electron laser when it becomes operational in 2009. Pulses of X-ray laser light from LCLS will be many orders of magnitude brighter and several orders of magnitude shorter than what can be produced by other X-ray sources available in the world. These characteristics will enable frontier new science in many areas. This paper describes the LCLS beam parameters and its lay-out. Results of the Monte Carlo calculations for the shielding design of the electron dump line, radiation damage to undulator, the residual radiation and the soil activation around the electron dump are presented.

  8. NASA/ASEE Summer Faculty Fellowship Program

    NASA Technical Reports Server (NTRS)

    Hosler, E. Ramon (Editor); Valdes, Carol (Editor); Brown, Tom (Editor)

    1993-01-01

    This document is a collection of technical reports on research conducted by the participants in the 1993 NASA/ASEE Summer Faculty Fellowship Program at KSC. The basic common objectives of the Program are: to further the professional knowledge of qualified engineering and science faculty members; to stimulate an exchange of ideas between participants and NASA; to enrich and refresh the research and teaching activities of participants' institutions; and to contribute to the research objectives of the NASA centers. 1993 topics include wide band fiber optic communications, a prototype expert/information system for examining environmental risks of KSC activities, alternatives to premise wiring using ATM and microcellular technologies, rack insertion end effector (RIEE) automation, FTIR quantification of industrial hydraulic fluids in perchloroethylene, switch configuration for migration to optical fiber network, and more.

  9. Mr. Gates's summer vacation: a centennial remembrance.

    PubMed

    Bryan, C S

    1997-07-15

    In 1897, Frederick T. Gates, a Baptist minister and adviser to John D. Rockefeller Sr., read the entire second edition of The Principles and Practice of Medicine by William Osler while on a summer vacation at Lake Liberty, New York. The book reinforced the low opinion Gates had of the efficacy of medicine but convinced him that medical science would be a wise investment for the Rockefeller fortune. The results of this investment included the Rockefeller Institute for Medical Research, the General Education Board, the Rockefeller Foundation, and the International Health Board. Gates sponsored Rockefeller funding of full-time clinical professorships, an idea that Osler opposed but that eventually became the prevailing model for medical departments at universities in the United States. PMID:9230006

  10. NASA/ASEE Summer Faculty Fellowship Program

    SciTech Connect

    Hosler, E.R.; Valdes, C.; Brown, T.

    1993-10-01

    This document is a collection of technical reports on research conducted by the participants in the 1993 NASA/ASEE Summer Faculty Fellowship Program at KSC. The basic common objectives of the Program are: to further the professional knowledge of qualified engineering and science faculty members; to stimulate an exchange of ideas between participants and NASA; to enrich and refresh the research and teaching activities of participants' institutions; and to contribute to the research objectives of the NASA centers. 1993 topics include wide band fiber optic communications, a prototype expert/information system for examining environmental risks of KSC activities, alternatives to premise wiring using ATM and microcellular technologies, rack insertion end effector (RIEE) automation, FTIR quantification of industrial hydraulic fluids in perchloroethylene, switch configuration for migration to optical fiber network, and more. Separate abstracts have been indexed into the data base for articles from this report.

  11. How To?Make Summer (Learning) Fun

    ERIC Educational Resources Information Center

    Lindroth, Linda

    2005-01-01

    Your students can be learning over summer vacation with these fun activities from the web. School will soon be out and your students will start summer vacation. How can you minimize "summer learning loss" over those days that kids are not in school? This year, send your students home with a Learning Log to record fun summer learning. It?s…

  12. Facility for Advanced Accelerator Experimental Tests at SLAC (FACET) Conceptual Design Report

    SciTech Connect

    Amann, J.; Bane, K.; /SLAC

    2009-10-30

    This Conceptual Design Report (CDR) describes the design of FACET. It will be updated to stay current with the developing design of the facility. This CDR begins as the baseline conceptual design and will evolve into an 'as-built' manual for the completed facility. The Executive Summary, Chapter 1, gives an introduction to the FACET project and describes the salient features of its design. Chapter 2 gives an overview of FACET. It describes the general parameters of the machine and the basic approaches to implementation. The FACET project does not include the implementation of specific scientific experiments either for plasma wake-field acceleration for other applications. Nonetheless, enough work has been done to define potential experiments to assure that the facility can meet the requirements of the experimental community. Chapter 3, Scientific Case, describes the planned plasma wakefield and other experiments. Chapter 4, Technical Description of FACET, describes the parameters and design of all technical systems of FACET. FACET uses the first two thirds of the existing SLAC linac to accelerate the beam to about 20GeV, and compress it with the aid of two chicanes, located in Sector 10 and Sector 20. The Sector 20 area will include a focusing system, the generic experimental area and the beam dump. Chapter 5, Management of Scientific Program, describes the management of the scientific program at FACET. Chapter 6, Environment, Safety and Health and Quality Assurance, describes the existing programs at SLAC and their application to the FACET project. It includes a preliminary analysis of safety hazards and the planned mitigation. Chapter 7, Work Breakdown Structure, describes the structure used for developing the cost estimates, which will also be used to manage the project. The chapter defines the scope of work of each element down to level 3.

  13. Radiation Safety Aspects of the Linac Coherent Light Source Project At SLAC

    SciTech Connect

    Rokni, S.H.; Fasso, A.; Mao, S.; Vincke, H.; /SLAC /LCLS

    2005-07-06

    The Linac Coherent Light Source (LCLS) is a Self-Amplified Spontaneous Emission based Free Electron Laser (FEL) that is being designed and built at the Stanford Linear Accelerator Center (SLAC) by a multilaboratory collaboration. This facility will provide ultra-short pulses of coherent x-ray radiation with the fundamental harmonic energy tunable over the energy range of 0.82 to 8.2 keV. One-third of the existing SLAC LINAC will compress and accelerate the electron beam to energies ranging from 4.5 GeV to 14.35 GeV. The beam will then be transported through a 130-meter long undulator, emit FEL and spontaneous radiation. After passing through the undulator, the electron beam is bent to the main electron dump. The LCLS will have two experiment halls as well as x-ray optics and infrastructure necessary to make use of the FEL for research and development in a variety of scientific fields. The facility design will incorporate features that would make it possible to expand in future such that up to 6 independent undulators can be used. While some of the radiation protection issues for the LCLS are similar to those encountered at both high-energy electron linacs and synchrotron radiation facilities, LCLS poses new challenges as well. Some of these new issues include: the length of the facility and of the undulator, the experimental floor in line with the electron beam and the occupancy near zero degrees, and the very high instantaneous intensity of the FEL. The shielding design criteria, methodology, and results from Monte Carlo and analytical calculations are presented.

  14. A Proof-Of-Principle Echo-Enabled Harmonic Generation Experiment at SLAC

    SciTech Connect

    Dunning, Michael; Colby, Eric; Ding, Yuantao; Frederico, Joel; Gilevich, Sasha; Hast, Carsten; Jobe, R.; McCormick, Douglas; Nelson, Janice; Raubenheimer, Tor; Soong, Ken; Stupakov, Gennady; Szalata, Zenon; Walz, Dieter; Weathersby, Stephen; Woodley, Mark; Xiang, Dao; Corlett, John; Penn, Gregory; Prestemon, Soren; Qiang, Ji; /LBL, Berkeley /LBL, Berkeley /LBL, Berkeley /LBL, Berkeley /LPHE, Lausanne

    2011-05-20

    In this paper we describe the technical design of an ongoing proof-of-principle echo-enabled harmonic generation (EEHG) experiment at the Next Linear Collider Test Accelerator (NLCTA) at SLAC.We present the design considerations and the technical details of the experiment. Recently a new method, entitled echo-enabled harmonic generation, was proposed for generation of high harmonics using the beam echo effect. In an EEHG free electron laser (FEL), an electron beam is energy modulated in a modulator and then sent through a dispersive section with a high dispersion strength. After this first stage, the modulation obtained in the modulator is macroscopically washed out, while simultaneously introducing complicated fine structure (separated energy bands) into the phase space of the beam. A second laser is used to further modulate the beam energy in a second modulator. After passing through a second dispersive section, the separated energy bands will be converted into current modulation and the echo signal then occurs as a recoherence effect caused by the mixing of the correlations between the modulation in the second modulator and the fine structures in the beam. The EEHG scheme has a remarkable up-frequency conversion efficiency; it has been shown that the EEHG FEL scheme may allow generation of soft x-rays directly from a UV seed laser in a single stage. In order to confirm the physics behind the EEHG technique and benchmark the theory, a proof-of-principleEEHG experimentwas planned at SLAC. The experiment is now in a commissioning stage and the preliminary results are reported in a separate paper of these proceedings. In this paper we present the design considerations and the details of the experiment setup.

  15. An Astrobiology Summer Program for High School Teachers and Students

    NASA Astrophysics Data System (ADS)

    Cola, J.; Williams, L. D.; Gaucher, E.; Snell, T.

    2010-12-01

    The Georgia Tech Center for Ribosomal Origins and Evolution, a center funded by the NASA Astrobiology Institute, developed an educational summer program titled, “Life on the Edge: Astrobiology.” The purpose of the program was to expose high school educators to the field of astrobiology and provide them with skills and classroom activities necessary to foster student interest in scientific discovery on Earth and throughout the universe. Astrobiology activities for a week-long summer enrichment program for high school students was developed by three high school educators, two undergraduate students and faculty in the Schools of Biology, and Chemistry and Biochemistry at Georgia Tech. Twenty-four high school students were introduced to hands-on activities and techniques such as gel electrophoresis, thin layer chromatography, and manual polymerase chain reaction. The impact of the astrobiology summer program on teachers and high school students will be discussed.

  16. Summer School and Summer Learning, 2002: Progress and Challenges.

    ERIC Educational Resources Information Center

    Denton, David R.

    In June 2002, the Southern Regional Education Board (SREB) adopted a new set of goals for the 21st century. Those goals included reaching every student, from preschool to high school, to ensure that achievement exceeds national averages and that performance gaps are closed. According to this brief report, research clearly shows that quality summer

  17. Think Summer: Early Planning, Teacher Support Boost Summer Learning Programs

    ERIC Educational Resources Information Center

    Browne, Daniel

    2013-01-01

    A fundamental problem that continues to plague educators is the achievement gap between low-income and higher-income students. In the ongoing search for solutions, one of the more promising approaches is expanding opportunities for learning, particularly in the summer. This article describes a project funded by The Wallace Foundation that offers…

  18. Think Summer: Early Planning, Teacher Support Boost Summer Learning Programs

    ERIC Educational Resources Information Center

    Browne, Daniel

    2013-01-01

    A fundamental problem that continues to plague educators is the achievement gap between low-income and higher-income students. In the ongoing search for solutions, one of the more promising approaches is expanding opportunities for learning, particularly in the summer. This article describes a project funded by The Wallace Foundation that offers…

  19. Boost Reading Skills by Summer

    ERIC Educational Resources Information Center

    Fink, Jennifer L. W.

    2012-01-01

    The end of the school year is in sight, but it's not too late to help lower-level readers catch up. Experts across the country were asked about the most common obstacles to reading success--and effective ways to over-come them. Their insights and tips can help a teacher make a real difference before summer begins.

  20. Summer Reading Goes High Tech

    ERIC Educational Resources Information Center

    Fink, Jennifer L. W.

    2012-01-01

    Not long ago, "summer reading" meant settling under a shady tree with a hefty book. Shady trees are still around, but books with pages can seem as out-of-date as vinyl records to many kids, especially older ones. Today, they scroll through content online, swipe pages on tablets, and manage a near-constant stream of media. Teachers can take…

  1. Learners in Action, Summer 2005

    ERIC Educational Resources Information Center

    Movement for Canadian Literacy, 2005

    2005-01-01

    This Summer 2005 issue of "Learners in Action" contains the following articles: (1) Bridging Barriers to Learning (Glenn Kissman); (2) Education Really Is a Family Affair; (3) Sabrina's Story; (4) SARAW Helps Students Find Their Voice; (5) Literacy Changes Lives; and (6) Seeing STARs in Alberta.

  2. Summer Coursework and Completing College

    ERIC Educational Resources Information Center

    Attewell, Paul; Jang, Sou Hyun

    2013-01-01

    The summer school sessions that colleges offer their undergraduates are sometimes considered supplementary activities and are rarely perceived as central to a college's mission or effectiveness. However, analyses of college transcript data that tracked a nationally-representative sample of undergraduates for several years and through multiple…

  3. Welcome to LANL Summer 2012

    SciTech Connect

    Bishop, Alan

    2012-06-19

    Alan Bishop, Principal Associate Director for Science, Technology & Engineering, delivers a Laboratory overview and welcome to the summer student population. Topics include LANL mission, opportunities, organization, and workforce, and the briefing concludes with a more in-depth look of the student programs.

  4. 1984 Summer Instructional Television Evaluation.

    ERIC Educational Resources Information Center

    Hayes, LaMarian

    An evaluation was conducted of the Atlanta Public Schools Sunclasses program, which was designed to reinforce basic reading and mathematics skills of retained or administratively placed students in grades 1-4, through 10 instructional television programs aired during a 6-week period in the summer of 1984. Supplementary activities implemented to…

  5. Summer Science Camps Program (SSC).

    ERIC Educational Resources Information Center

    National Science Foundation, Washington, DC. Directorate for Education and Human Resources.

    The Summer Science Camps (SSC) Program supports residential and commuter enrichment projects for seventh through ninth grade minority students who are underrepresented in science, engineering, and mathematics. Eligible organizations include school districts, museums, colleges, universities, and nonprofit youth-centered and/or community-based…

  6. Make Summer Your Growing Season.

    ERIC Educational Resources Information Center

    Simons, Harriet

    1982-01-01

    Describes the opportunities available in summer workshops and graduate programs for music teachers. The impact of the workshops and programs on improving teacher effectiveness is evaluated. Criteria are included for evaluating program offerings for their usefulness to teachers. The author offers suggestions to workshop planners to improve the…

  7. Students Participate in Summer Program.

    ERIC Educational Resources Information Center

    Oliver, Jimmie Nell

    1997-01-01

    The Agricultural Research Service provides "hands-on" work experience in a research laboratory to college students interested in agriculture, science, math, and other related fields. Three Native American college students describe how participating in this summer intern program has helped them pursue their educational goals. (TD)

  8. Mathematics Intensive Summer Session (MISS). Final technical report

    SciTech Connect

    1998-11-01

    This final technical report appears in two parts: the report for the 1995 summer MISS program and the report for the 1996 summer MISS program. Copies of the US Department of Energy Pre-Freshman Enrichment Program 1995 Entry Form and 1996 Entry Form completed by all participants were sent to the Oak Ridge Institute for Science and Education in the fall of 1995 and 1996 respectively. Those forms are on file should they be needed. Attached also is a copy of the Summary of ideas for panel discussions, problem-solving sessions, or small group discussions presented at the Department of Energy Oak Ridge Institute for Science and Education Pre-Freshman Enrichment Program Project Directors Meeting held in San Antonio, TX, November 12--14, 1995.

  9. Institutional History.

    ERIC Educational Resources Information Center

    Kohlstedt, Sally Gregory

    1985-01-01

    Discusses recent work on scientific institutions in the United States, indicating that although historians have explored the origins of institutions, few have pursued these organizations into their later and perhaps equally complex years. Learned/professional organizations, museums, publications, and philanthropy are among the major topic areas…

  10. Site- and kinase-specific phosphorylation-mediated activation of SLAC1, a guard cell anion channel stimulated by abscisic acid.

    PubMed

    Maierhofer, Tobias; Diekmann, Marion; Offenborn, Jan Niklas; Lind, Christof; Bauer, Hubert; Hashimoto, Kenji; S Al-Rasheid, Khaled A; Luan, Sheng; Kudla, Jörg; Geiger, Dietmar; Hedrich, Rainer

    2014-09-01

    Under drought stress, abscisic acid (ABA) triggers closure of leaf cell pores called stomata, which are formed by two specialized cells called guard cells in plant epidermis. Two pathways downstream of ABA stimulate phosphorylation of the S-type anion channels SLAC1 (slow anion channel associated 1) and SLAH3 (SLAC1 homolog 3), which causes these channels to open, reducing guard cell volume and triggering stomatal closure. One branch involves OST1 (open stomata 1), a calcium-independent SnRK2-type kinase, and the other branch involves calcium-dependent protein kinases of the CPK (calcium-dependent protein kinase) family. We used coexpression analyses in Xenopus oocytes to show that the calcineurin B-like (CBL) calcium sensors CBL1 and CBL9 and their interacting protein kinase CIPK23 also triggered SLAC1 and SLAH3 opening. We analyzed whether regulation of SLAC1 opening by these different families of kinases involved the same or different sites on SLAC1 by measuring channel conductance of SLAC1 with mutations in the putative phosphorylation sites in the amino or carboxyl termini coexpressed with specific kinases in Xenopus oocytes. SLAC1 mutants lacking the OST1-phosphorylated site were still activated by CPK or by CBL/CIPK complexes. Phosphorylation and activation of SLAC1 by any of the kinases were inhibited by the phosphatase ABI1 (ABA insensitive 1), which is inactivated in response to ABA signaling. These findings identified CBL/CIPK complexes as potential regulators of stomatal aperture through S-type anion channels and indicated that phosphorylation at distinct sites enables SLAC1 activation by both calcium-dependent and calcium-independent pathways downstream of ABA. PMID:25205850

  11. Development of Cellulosic Biofuels (LBNL Summer Lecture Series)

    ScienceCinema

    Somerville, Chris [Director, Energy Biosciences Institute

    2011-04-28

    Summer Lecture Series 2007: Chris Somerville, Director of the Energy Biosciences Institute and an award-winning plant biochemist with Berkeley Lab's Physical Biosciences Division, is a leading authority on the structure and function of plant cell walls. He discusses an overview of some of the technical challenges associated with the production of cellulosic biofuels, which will require an improved understanding of a diverse range of topics in fields such as agronomy, chemical engineering, microbiology, structural biology, genomics, environmental sciences, and socioeconomics.

  12. Latest Research from NIH's National Institute of Dental and Craniofacial Research | NIH MedlinePlus the Magazine

    MedlinePLUS

    ... Health Latest Research from NIH's National Institute of Dental and Craniofacial Research Past Issues / Summer 2012 Table ... D., is director of NIH's National Institute of Dental and Craniofacial Research (NIDCR). The NIH's National Institute ...

  13. FINAL REPORT OF THE SUMMER STUDY ON OCCUPATIONAL, VOCATIONAL, AND TECHNICAL EDUCATION.

    ERIC Educational Resources Information Center

    FRANK, NATHANIEL H.

    A SUMMER INSTITUTE WAS CONDUCTED TO PLAN NEW PATTERNS TO ATTAIN OCCUPATIONAL, VOCATIONAL, AND TECHNICAL EDUCATION GOALS. THE IMMEDIATE PURPOSE WAS THAT OF DEVELOPING CRITERIA FOR NEW INSTRUCTIONAL MATERIALS AND LEARNING AIDS FOR SUCH EDUCATION. SEVERAL RECOMMENDATIONS WERE STRUCTURED FROM THE INSTITUTE--(1) THAT THERE BE INITIATED A DEVELOPMENT…

  14. Inquiry Science Professional Development Combined with a Science Summer Camp for Immediate Application

    ERIC Educational Resources Information Center

    Naizer, Gilbert; Bell, Glenda Love; West, Keith; Chambers, Sharon

    2003-01-01

    This study evaluated the effectiveness of an intensive three-week science institute for preservice and inservice elementary teachers that was funded by an Eisenhower Professional Development grant and a Regents' Initiative Research grant. The institute was held in combination with a summer science camp for elementary children. Pre- and…

  15. Artists Paint ... Summer: Grade 2

    ERIC Educational Resources Information Center

    Herberholz, Barbara

    2012-01-01

    A humid summer haze covers the River Seine and the grassy bank where young men and boys go swimming on Sunday. Everything seems so quiet, still, and very hot. They wear hats to protect them from the hot sun. The artist Georges Seurat used warm tones to give viewers the feeling of the hot sun. Seurat was trying to catch the dazzle of hot sunlight…

  16. Artists Paint ... Summer: Grade 2

    ERIC Educational Resources Information Center

    Herberholz, Barbara

    2012-01-01

    A humid summer haze covers the River Seine and the grassy bank where young men and boys go swimming on Sunday. Everything seems so quiet, still, and very hot. They wear hats to protect them from the hot sun. The artist Georges Seurat used warm tones to give viewers the feeling of the hot sun. Seurat was trying to catch the dazzle of hot sunlight…

  17. SNOWMASS (DPF Community Summer Study)

    SciTech Connect

    Cronin-Hennessy, et al, Daniel

    2013-08-06

    The 2013 Community Summer Study, known as Snowmass," brought together nearly 700 physicists to identify the critical research directions for the United States particle physics program. Commissioned by the American Physical Society, this meeting was the culmination of intense work over the past year by more than 1000 physicists that defined the most important questions for this field and identified the most promising opportunities to address them. This Snowmass study report is a key resource for setting priorities in particle physics.

  18. CSCAPES Institute

    SciTech Connect

    Alex Pothen

    2008-10-26

    We report on the progress made by researchers of the CSCAPES Institute at Old Dominion University for the years 2007 and 2008 in the areas of research, software creation, education and training, and outreach activities.

  19. Burn Institute

    MedlinePLUS

    ... Now Help keep local seniors safe from fire! Burn Survivor Support If you are reading this, chances ... year – a burn injury. Learn more Fire and Burn Prevention Each year, the Burn Institute provides fire ...

  20. Hydromania: Summer Science Camp Curriculum.

    SciTech Connect

    Moura, Joan

    1995-07-01

    In 1992, Bonneville Power Administration (BPA) and the US Department of Energy (DOE) began a collaborative pilot project with the Portland Parks and Recreation Community Schools Program and others to provide summer science camps to children in Grades 4--6. Camps run two weeks in duration between late June and mid-August. Sessions are five days per week, from 9 a.m. to 3 p.m. In addition to hands-on science and math curriculum, at least three field trips are incorporated into the educational learning experience. The purpose of the BPA/DOE summer camps is to make available opportunities for fun, motivating experiences in science to students who otherwise would have difficulty accessing them. This includes inner city, minority, rural and low income students. Public law 101-510, which Congress passed in 1990, authorizes DOE facilities to establish collaborative inner-city and rural partnership programs in science and math. A primary goal of the BPA summer hands on science camps is to bring affordable science camp experiences to students where they live. It uses everyday materials to engage students` minds and to give them a sense that they have succeeded through a fun hands-on learning environment.