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1

22nd SLAC Summer Institute on Particle Physics: Particle physics, astrophysics and cosmology  

NASA Astrophysics Data System (ADS)

The seven-day school portion of the Institute revolved around the question of dark matter: where is it and what is it? Reviews were given of microlensing searches for baryonic dark matter, of dark matter candidates in the form of neutrinos and exotic particles, and of low-noise detection techniques used to search for the latter. The history of the universe, from the Big Bang to the role of dark matter in the formation of large-scale structure, was also covered. Other lecture series described the astrophysics that might be done with x-ray timing experiments and through the detection of gravitational radiation. As in past years, the lectures each morning were followed by stimulating afternoon discussion sessions, in which students could pursue with the lecturers the topics that most interested them. The Institute concluded with a three-day topical conference covering recent developments in theory and experiment. Highlights from the astrophysical and cosmological arenas included observations of anisotropy in the cosmic microwave background, and of the mysterious gamma-ray bursters. From terrestrial accelerators came tantalizing hints of the top quark and marked improvements in precision electroweak measurements, among many other results. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database.

Chan, J.; Deporcel, L.

2

Georgetown Summer Institute  

NSDL National Science Digital Library

This website provides information regarding summer medical course offerings through Georgetown University. These medical course-based experiences are for undergraduate and post-bacc students, and make-up courses for medical school students. Courses include Gross Anatomy, Medical Histology, Medical Biochemistry and Human Physiology.

Georgetown Summer Medical Institute (Georgetown University)

2012-07-24

3

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

National Technical Information Service (NTIS)

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 experi...

J. Hawthorne

1992-01-01

4

MATE Summer Institutes and Workshops  

NSDL National Science Digital Library

The Marine Advanced Technology Education Center (MATE) hosts workshops and institutes each summer. The events are intended as professional development activities for college, high school and university faculty. The goals of the summer institutes are to: 1. Create an awareness of ocean activities related to marine research, exploration, and industry; 2. Highlight career opportunities associated with these activities; 3. Promote the teaching of higher-level technical, problem-solving, critical thinking, communication, and teamwork skills; and 4. Provide opportunities for educators to interact with employers- and vice versa.

2011-09-20

5

GLEANINGS FROM A SUMMER INSTITUTE.  

ERIC Educational Resources Information Center

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…

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

6

MATE 2007 Summer Institute: Curriculum Products  

NSDL National Science Digital Library

The Marine Advanced Technology Education (MATE) Center hosts summer institutes at their Monterey, CA campus each year. The 2007 institute featured a remotely operated vehicle (ROV) workshop. This site includes the participant's names, their schools and curriculum products.

2011-09-02

7

Quartz Mountain/Oklahoma Summer Arts Institute.  

ERIC Educational Resources Information Center

Describes the Quartz Mountain Oklahoma Summer Arts Institute program. It is designed to nurture artistic talent and to provide intensive arts experiences in music, dance, theater, and the visual arts for talented students aged 14-18. (AM)

Frates, Mary Y.; Madeja, Stanley S.

1982-01-01

8

University of Nebraska Summer Teaching Institute  

NSDL National Science Digital Library

This website provides course information for intensive course study during a summer institute at the University of Nebraska. The courses available include: Cell Biology/Histology, Human Gross Anatomy, Embryology , and Medical Neuroscience.

University of Nebraska Summer Institute (University of Nebraska Medical Center)

2012-07-24

9

45 CFR 2400.51 - Summer Institute accreditation.  

Code of Federal Regulations, 2013 CFR

...Public Welfare 4 2013-10-01 2013-10-01 false Summer Institute accreditation. 2400.51 Section 2400.51 ...FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.51 Summer Institute accreditation. The Institute is accredited...

2013-10-01

10

45 CFR 2400.50 - Allowances and Summer Institute costs.  

Code of Federal Regulations, 2013 CFR

...4 2013-10-01 2013-10-01 false Allowances and Summer Institute costs. 2400.50 Section 2400.50 Public Welfare...REQUIREMENTS Graduate Study § 2400.50 Allowances and Summer Institute costs. At the Foundation's...

2013-10-01

11

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

Code of Federal Regulations, 2013 CFR

...Public Welfare 4 2013-10-01 2013-10-01 false Summer Institute's relationship to fellowship. 2400.47 Section...FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.47 Summer Institute's relationship to fellowship. Each...

2013-10-01

12

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

SciTech Connect

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

Hawthorne, J. (ed.)

1992-09-01

13

45 CFR 2400.49 - Contents of the Summer Institute.  

Code of Federal Regulations, 2013 CFR

... 2013-10-01 2013-10-01 false Contents of the Summer Institute. 2400.49 Section 2400.49 Public Welfare...REQUIREMENTS Graduate Study § 2400.49 Contents of the Summer Institute. The principal element of the Institute is a...

2013-10-01

14

Summer Institute for Physical Science Teachers  

NASA Astrophysics Data System (ADS)

A summer institute for physical science teachers was conducted at Winthrop University, June 19-29, 2006. Ninth grade physical science teachers at schools within a 50-mile radius from Winthrop were targeted. We developed a graduate level physics professional development course covering selected topics from both the physics and chemistry content areas of the South Carolina Science Standards. Delivery of the material included traditional lectures and the following new approaches in science teaching: hands-on experiments, group activities, computer based data collection, computer modeling, with group discussions & presentations. Two experienced master teachers assisted us during the delivery of the course. The institute was funded by the South Carolina Department of Education. The requested funds were used for the following: faculty salaries, the University contract course fee, some of the participants' room and board, startup equipment for each teacher, and indirect costs to Winthrop University. Startup equipment included a Pasco stand-alone, portable Xplorer GLX interface with sensors (temperature, voltage, pH, pressure, motion, and sound), and modeling software (Wavefunction's Spartan Student and Odyssey). What we learned and ideas for future K-12 teacher preparation initiatives will be presented.

Maheswaranathan, Ponn; Calloway, Cliff

2007-04-01

15

Allegheny College Hosts Neuroscience and Humanities Summer Institute  

NSDL National Science Digital Library

This article describes the Neuroscience and Summer Institute, a week long program that provided a medium for fostering development of interdisciplinary courses linking neuroscience and the humanities.

Emily Macel (Allegheny College;)

2004-08-08

16

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

ERIC Educational Resources Information Center

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

Huff, Karen; Pavonetti, Linda; Roser, Nancy

2012-01-01

17

NDEA INSTITUTES, SUMMER 1961--A SURVEY.  

ERIC Educational Resources Information Center

QUESTIONNAIRE DATA FROM A STUDY OF THE IMPACT OF NDEA LANGUAGE INSTITUTES ON PARTICIPANTS WERE SUMMARIZED. INCLUDED WERE THE RATINGS GIVEN BY THE PARTICIPANTS FOR THE INSTITUTE INSTRUCTION AND FOR THEIR PREVIOUS COLLEGE TRAINING, AND REPORTED STRENGTHS AND WEAKNESSES OF THE INSTITUTE PROGRAM. RATINGS FOR INSTRUCTION IN LISTENING COMPREHENSION,…

WALSH, DONALD D.

18

Assessing the Effectiveness of the UWM Summer Institute on Nonviolence.  

ERIC Educational Resources Information Center

During the summer of 1995 a group of educators in Milwaukee (Wisconsin) created an innovative program, the University of Wisconsin-Milwaukee (UWM) Summer Institute on Nonviolence, to help young people learn alternatives to violent behavior. The program was designed to train peer leaders in nonviolence so they could return to their schools and…

Harris, Ian; And Others

19

Johns Hopkins Summer Institute in Human Anatomy for Undergraduates  

NSDL National Science Digital Library

This website provides information regarding Johns Hopkins' Summer Institute in Human Anatomy for Undergraduates. The course is a four week intensive lecture and lab course with the goal of providing undergraduates an introduction to anatomy and cadavers.

Johns Hopkins University (Johns Hopkins University)

2012-07-24

20

An Earth Science Summer Institute for Elementary Teachers.  

ERIC Educational Resources Information Center

Introduces the Earth Science Summer Institute for elementary teachers, a program of professional development in content and inquiry. Focuses on concepts and learning demonstrating the interconnectedness of earth science topics. (Author/YDS)

Levitt, Karen E.; Manner, Barbara M.

2001-01-01

21

Fifth International Summer Institute in Surface Science (ISISS 1981).  

National Technical Information Service (NTIS)

At the Fifth International Summer Institute in Surface Science, twenty leading scientists presented tutorial review talks on gas-solid and solid-solid interfaces. Paper topics include: 'Development of Photoemission as a Tool for Surface Analysis - From Se...

R. Vanselow

1982-01-01

22

National Summer Transportation Institute National Resource Center, 1999.  

National Technical Information Service (NTIS)

This document summarizes the accomplishments of the 1999 National Summer Transportation Institute (NSTI). On February 5, 1999, Federal Highway Administration Deputy Administrator Gloria Jeff and South Carolina State University President Leroy Davis signed...

H. Brown

2002-01-01

23

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

Federal Register 2010, 2011, 2012, 2013

...Comment Request; National Institute of Nursing Research (NINR) Summer Genetics Institute...collection projects, the National Institute of Nursing Research (NINR), the National Institutes...Title: NIH/National Institute of Nursing Research (NINR) Summer Genetics...

2012-06-29

24

Harbor Branch Oceanographic Institution Summer Internships  

NSDL National Science Digital Library

HBOI summer internships with stipend are open to graduate students and undergrads with minimum 2 years of class work completed. The ten-week program pairs student with a mentor to conduct research project. Areas of study may include, but are not limited to: aquaculture, biomedical marine research, marine biology, marine mammal research, marine natural product chemistry, marine microbiology, ocean engineering, ocean technology, and oceanography. Limited openings, website describes the competitive application process and requirements. Located in Ft. Pierce, FL.

2011-06-10

25

MATE 2006 Summer Institute (Remotely Operated Vehicles): Curriculum Products  

NSDL National Science Digital Library

The Marine Advanced Technology Education (MATE) Center hosts summer institutes at their Monterey, CA campus each year. This institute, which took place in 2006, was on the topic of building remotely operated vehicles. This site includes the participant's names, their schools and educational resources/curriculum products.

2011-09-06

26

Design for Learning; 1967 Summer Institute of Technology for Children.  

ERIC Educational Resources Information Center

This book is a description of a summer institute of the Technology for Children Project which was designed to help teachers combine technological activities with regular academic lessons for children in grades K-6. Included are: (1) the three institute goals which were to orient elementary classroom teachers, to develop guidelines for…

Helen L. Beeler School, Marlton, NJ.

27

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

Code of Federal Regulations, 2013 CFR

...false Fellows' participation in the Summer Institute. 2400.48 Section 2400...48 Fellows' participation in the Summer Institute. Each fellow is required...if it is offered), normally during the summer following the Fellow's...

2013-10-01

28

Aspen Global Change Institute Summer Science Sessions  

SciTech Connect

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

Katzenberger, John; Kaye, Jack A

2006-10-01

29

Continuing Evolution: The Rhode Island Early Childhood Summer Institute  

ERIC Educational Resources Information Center

This narrative chronicles the continued evolution and development of the Rhode Island Early Childhood Summer Institute, an intensive 5-day inservice professional development program designed for educational leaders from various sectors of the early care and education field. The goal is to review the continued use of successful practices…

Horm, Diane M.; O'Keefe, Beverly; Diffendale, Charlotte; Cohen, Amy; Schennum, Ruth; Pucciarelli, Larry; Collins, Cheryl; Merrifield, Margaret; Nardone, Virginia; Martin, Marilyn; Bryan, Linda; DeRobbio, Gail

2004-01-01

30

Charting the Outcomes of an Interdisciplinary Summer Institute on Gerontology.  

ERIC Educational Resources Information Center

An outcomes charting method was used to evaluate effects of a 12-year-old interdisciplinary summer institute for health professionals. Primary outcomes were academic publications, and a case management guide and videotapes. Secondary outcomes included improved clinical service and an undergraduate course on case management. (SK)

Deveau, Eleanor J.; Blumberg, Phyllis; Joshi, Anju

1997-01-01

31

FCCSET/DOE 1993 Summer Institutes. Evaluation Report.  

ERIC Educational Resources Information Center

This document reports on the evaluation study of the Federal Coordinating Council for Science, Engineering, and Technology (FCCSET) 1993 Summer Institutes that provided opportunities for teachers from around the country to participate in hands-on education programs in areas such as environmental and ecological studies, material science, space…

Martin, Sue; And Others

32

Summer Research Institute Interfacial and Condensed Phase Chemical Physics  

SciTech Connect

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.

Barlow, Stephan E.

2004-10-01

33

International Summer Institute in Surface Science (ISISS 1975) (2nd).  

National Technical Information Service (NTIS)

At the second International Summer Institute in Surface Science, twenty-one leading scientists presented tutorial review talks on gas-solid interfaces. Paper topics: 'The Imaging Process in Field Ion Microscopy: From the FEM to the ATOM-Probe', 'Influence...

R. Vanselow

1976-01-01

34

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

PubMed Central

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.

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

2008-01-01

35

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

NASA Astrophysics Data System (ADS)

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:

  • The Third Generation as a Probe for New Physics: Experimental and Technological Approach (4 - 11 September)
  • The Quest for Unification Theory Confronts Experiment (11 - 18 September)
  • Constituents Fundamental Forces and Symmetries of the Universe (20 - 26 September)
  • 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:
  • European Resea

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

    2006-12-01

  • 36

    The NSF Summer Institute Program: A Follow-up of 1957 Institute Participants. Volume IV, Series of Summer Institute Evaluation Studies, Part I, Report and Interview Schedules.  

    ERIC Educational Resources Information Center

    This report focuses on the long-range (i.e., two and one-half years later) effects of the National Science Foundation Summer Institutes of 1957 on the high school mathematics and science teachers who participated in them. Of the 4,600 high school teachers who had taken part in the Summer Institutes, 2,628 were involved in this study. Data were…

    Bureau of Social Science Research, Inc., Washington, DC.

    37

    Summer Institute in Engineering and Computer Applications: Learning Through Experience  

    NASA Technical Reports Server (NTRS)

    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.

    Langdon, Joan S.

    1995-01-01

    38

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

    SciTech Connect

    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.

    NONE

    1994-07-01

    39

    76 FR 27305 - Proposed Information Collection; Comment Request; the NIST Summer Institute for Middle School...  

    Federal Register 2010, 2011, 2012, 2013

    ...NIST Summer Institute for Middle School Science Teachers (NIST Summer Institute...programs designed to support middle school science teachers to participate...submission. Affected Public: Middle school (Grades 6-8) science teachers in a U.S....

    2011-05-11

    40

    A Summer Transportation Institute Experience At Mississippi State University  

    NSDL National Science Digital Library

    In the summer of 2007, Mississippi State University's Bagley College of Engineering was awarded a grant from the Mississippi Department of Transportation (MDOT) to host the 2007 Mississippi Summer Transportation Institute (MSTI). The MSTI is a three-week residential program for 19 rising high school sophomores and juniors. The focus of MSTI was how science, technology, engineering, and mathematics (STEM) are related to transportation and career opportunities in transportation. The MSTI included hands-on activities, development of communication skills, and utilization of technology and skills required in todays workforce. Field trips to the Nissan plant, Mississippi Department of Transportation (MDOT), and the Columbus, MS Air Force Base exposed students to real-world applications of STEM and introduced them to a wide range of careers in transportation. The curriculum included sessions about structural systems, system illustration (CAD), transportation system layout, hydraulic engineering, environmental and water resources engineering, pavement materials design, building materials design, and traffic management. Leadership training and team building activities were also included. According to student feedback, there was an increase in interest across all subject areas after their participating in the MSTI. Post-program follow up also suggest that the MSTI had a positive effect on encouraging participating students to take more science and math courses. When asked how MSTI will influence their career choices, some of the participants specifically noted overall desires to become engineers. The more specific comments included, I will most likely be an engineer and MSTI has helped with that choice. This camp has enforced my interests in engineering This camp definitely made me want to be an engineer. This paper will present the overall curriculum of the MSTI camp with specific emphasis on activities that could be implemented at other institutions. In addition, detailed assessment results of each activity will be presented to help institutions interested in implementing similar camps to choose activities which appear to be of most benefit to the students.

    Reese, Donna; Seiler, Emma; Trauax, Dennis

    2009-08-18

    41

    East Asia and Pacific Summer Institutes for U.S. Graduate Students  

    NSF Publications Database

    Current information is available at the NSF Summer Institutes Website (http://www.nsf.gov/eapsi). Applicants are advised to review specific information for Australia, China, Japan, Korea, and Taiwan under ?Potential Host Institutions for East Asia and Pacific Summer Institutes? on the Summer Institutes Website (http://www.nsf.gov/eapsi). More comprehensive information on NSF Award Conditions is contained in the NSF Grant Policy Manual (GPM) Chapter II, available electronically on the NSF ...

    42

    Summer Internship Program at the Monterey Bay Aquarium Research Institute  

    NASA Astrophysics Data System (ADS)

    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

    Matsumoto, G. I.

    2009-12-01

    43

    Developing Citizen-Teachers through Performance Arts in the Summer Institute  

    ERIC Educational Resources Information Center

    The authors describe the journey they undertook integrating the arts into the summer institute. The central reason for their focus on the arts in the summer institute is the desire to support education reform--with a particular eye to social justice in schools. The authors believe that when the field is open wide enough to allow everyone's ideas…

    McCracken, Nancy Mellin; Manna, Anthony; Wagner, Darla; Molnar, Bonnie

    2006-01-01

    44

    NIBIB-NSF Bioengineering and Bioinformatics Summer Institutes Program (BBSI)  

    NSF Publications Database

    ... Joint Program for Interdisciplinary Research Training and Education Program Solicitation NSF ... research training and have been appointed to pursue a second summer of research training at the same ...

    45

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

    ERIC Educational Resources Information Center

    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…

    National Science Foundation, Washington, DC.

    46

    NSF Tokyo Report: 1997 Summer Institute in Japan  

    NSF Publications Database

    ... Laboratory 2 Ministry of Education, Science, Sports and Culture (12): Tokyo Institute of Technology ... Engineering 2 Mechanical Engineering Design 1 Medicine 2 Microbiology 2 Neurology 1 Pharmacology & ...

    47

    English as a Second Language Summer Institute. Final Report.  

    ERIC Educational Resources Information Center

    A 3-day institute on English-as-a-Second-Language (ESL) instruction, designed for adult literacy teachers, is reported. The institute, held at Northampton Community College (Bethlehem, Pennsylvania) in July 1993, offered seminars in acquired immune deficiency syndrome/human immunovirus (AIDS/HIV) and the ESL student, sheltered English instruction,…

    Marks, Teresa; Seiler, Tammy

    48

    Summer Curriculum - Cancer Prevention Fellowship Program - National Cancer Institute  

    Cancer.gov

    This four-week summer course provides specialized instruction in the principles and practice of cancer prevention and control. It focuses on concepts, methods, issues, and applications related to this field. Participants will gain a broad-based perspective in terms of available resources, scientific data, and quantitative and qualitative methods. For an overview of course offerings, please see the 2013 Principles Course syllabus (PDF 230KB).

    49

    AN EIGHT WEEK SUMMER INSTITUTE TRAINING PROGRAM TO TRAIN INSTRUCTORS OF INSTRUMENTATION TECHNOLOGY.  

    ERIC Educational Resources Information Center

    A SUMMER INSTITUTE IN INSTRUMENTATION TECHNOLOGY WAS HELD TO PROVIDE TEACHERS WITH CURRENT KNOWLEDGE ON AUTOMATIC, PROCESS-CONTROL INSTRUMENTATION. A PREVIOUSLY DEVELOPED GUIDE FOR A 2-YEAR, POST-HIGH SCHOOL CURRICULUM PROVIDED THE BASIS FOR INSTRUCTION AND DISCUSSION DURING THE INSTITUTE. THREE COURSES IN MEASUREMENT AND INSTRUMENT SHOP…

    MCKEE, DELBERT A.

    50

    MATE 2002 Summer Institute (Splashing into Success with ROVs): Curriculum Products  

    NSDL National Science Digital Library

    The Marine Advanced Technology Education (MATE) Center hosts summer institutes at their Monterey, CA campus each year. This institute, which took place in 2002, was on the topic of building remotely operated vehicles. This site includes the participant's names, their schools and educational resources/curriculum products.

    2011-08-26

    51

    MATE 2002 Summer Institute (Marine Science, Technology and GIS): Curriculum Products  

    NSDL National Science Digital Library

    The Marine Advanced Technology Education (MATE) Center hosts summer institutes at their Monterey, CA campus each year. This institute, which took place in 2002, focused on the topics of marine science, technology and GIS. This site includes the participant's names, their schools and educational resources/curriculum products.

    2011-08-25

    52

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

    ERIC Educational Resources Information Center

    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…

    Gray, Kenney E.; Pierson, Terrence K.

    53

    Teacher Attendance at a Summer Institute and High School Student Achievement  

    ERIC Educational Resources Information Center

    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)

    Thelen, L. J.; Litsky, Warren

    1972-01-01

    54

    An Evaluation of a Summer Reading Institute, 1968.  

    ERIC Educational Resources Information Center

    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…

    Rosenfeld, Michael

    55

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

    ERIC Educational Resources Information Center

    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…

    Kjeldsen, Chris K.

    56

    NCAR Johns Hopkins/CDC Climate and Health Summer Institute  

    NASA Technical Reports Server (NTRS)

    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.

    Mearns, Linda O.

    2005-01-01

    57

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

    SciTech Connect

    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.

    Pieper, G.W.

    1992-01-01

    58

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

    ERIC Educational Resources Information Center

    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"…

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

    59

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

    ERIC Educational Resources Information Center

    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…

    Gieser, C. Richard, Ed.

    60

    Work Papers of the Summer Institute of Linguistics, University of North Dakota Session, Volume 30, 1986.  

    ERIC Educational Resources Information Center

    Working papers resulting from the 1986 University of North Dakota Summer Institute of Linguistics include: "Orthographic Reform in Kope" (John M. Clifton); "Ternarity and Obligatory Branching in Piraha" (Daniel Everett); "Reduplication in Majang" (Pete Unseth); "Indirect Objects and Incorporation in Mazatec" (Daniel Agee, Stephen Marlett);…

    Derbyshire, Desmond C., Ed.

    61

    Summer Institute at Indiana U. Uses Immersion to Teach Hard-to-Learn East Asian Languages.  

    ERIC Educational Resources Information Center

    As East Asian countries continue to develop into major powers in the economic world, students come to Indiana University's East Asian Summer Language Institute to improve their chances for careers in those countries in international law, teaching, and business. Advice on proper etiquette is also included. (MLW)

    Oberlander, Susan

    1989-01-01

    62

    Summer Preparatory Institute, 1968, University of Denver, College of Law. Report.  

    ERIC Educational Resources Information Center

    The primary objective of the University of Denver Law School 1968 Summer Preparatory Institute was to assist in increasing the number of law students, and subsequently the number of lawyers, by giving 40 students from minority groups an opportunity to demonstrate a potential for satisfactory work in law school. The course content of the program…

    Denver Univ., CO.

    63

    A Profile of the Characteristics, Needs and Counseling Preferences of Talent Search Summer Institute Participants.  

    ERIC Educational Resources Information Center

    The Rocky Mountain Talent Search 1984 Summer Institute participants, consisting of 12 through 15-year-old, highly able, high achieving students, are described in this study. The Harter Perceived Competence Scale for Children was used to measure feelings in the areas of cognitive, social, and physical competence and general self-esteem. An…

    Strop, Jean M.; Hultgren, Holly M.

    64

    Examining motivations, efficacy and interest in graduate study among teacher participants of a summer institute  

    NASA Astrophysics Data System (ADS)

    This study examined changes in self and general science teaching efficacy of teachers attending an environmental sciences summer institute in which they earned three hours of graduate credit. The Science Teaching Efficacy Belief Instrument Form A (STEBI A) (Riggs, 1988) was administered as a pretest and posttest at nine Texas universities during June and July of 1997. The population of 145 teachers voluntarily participated in the graduate course, Teaching Environmental Sciences (TES), co-sponsored by the state's regulatory agency, the Texas Natural Resource Conservation Commission and nine Texas universities. Demographic data and data related to teacher motivation were collected as an addendum to the STEBI A. Teacher participants' apparent motivation(s) to attend TES in the absence of state and district staff development mandates were examined. Correlations between demographic data and efficacy responses were analyzed. Qualitative data collected through telephone interviews with TES teachers examined participants' interest in entering graduate studies following this summer institute, particularly with respect to science-related advanced degrees. Generally, the data revealed an increase in science teaching efficacy on posttests, particularly with respect to positively stated STEBI items. Motivations of teachers to attend this summer institute were largely influenced by interest in the subject and an apparent interest in enhancing their skills and pedagogy. The data related to teacher participants' intent to enter graduate study was inconclusive. The information provided through interviews with professors was, however, encouraging but not conclusive with respect to this study and teachers' entering graduate studies following participation in the summer institute.

    Hefty, Eunice Ann

    65

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

    ERIC Educational Resources Information Center

    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.…

    Bickford, J. Albert, Ed.

    66

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

    ERIC Educational Resources Information Center

    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…

    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

    67

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

    ERIC Educational Resources Information Center

    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…

    Sudol, Ron

    2003-01-01

    68

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

    ERIC Educational Resources Information Center

    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…

    Bloland, Paul A.; Nowak, Daniel B.

    69

    International Summer Institute in Quantum Chemistry, Solid State Physics and Quantum Biology.  

    National Technical Information Service (NTIS)

    The International Summer Institute in Quantum Chemistry, Solid State Physics and Quantum Biology was held in two parts: from 1-12 Aug 1967 at the Univ. of Uppsala, Sweden, and from 14 Aug - 2 Sep 1967 at Sjusjoen, Norway. This report describes only the se...

    M. Weissbluth

    1967-01-01

    70

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

    ERIC Educational Resources Information Center

    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"…

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

    71

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

    ERIC Educational Resources Information Center

    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…

    Daly, John, Ed.

    72

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

    SciTech Connect

    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.

    Avery, Nikki B.; Barlow, Stephan E.

    2006-11-10

    73

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

    SciTech Connect

    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.

    Beck, Kenneth M.

    2007-10-31

    74

    An Investment in Knowledge: The First Dozen Years of the National Science Foundation's Summer Institutes Programs  

    NSDL National Science Digital Library

    This book was published in 1969 and, at the time, was considered on the cutting edge of science and science education. Today, the text offers a historical perspective of the state of science education during the 1950's and 1960's and a reflective look at the early years of the Summer Institutes Program started by the National Science Foundation. This book is a useful reference for studying educational trends over the last century.

    2006-11-13

    75

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

    ERIC Educational Resources Information Center

    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…

    Simkin, Linda S.; Futch, Valerie

    2006-01-01

    76

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

    SciTech Connect

    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.

    Lopez, Jose L. [Seton Hall University

    2012-07-01

    77

    The University of Wyoming Early Childhood Summer Institute: A Model for Professional Development that Leads to Changes in Practice  

    Microsoft Academic Search

    One of the greatest challenges we face as an early childhood professional community is providing short-term, affordable professional development that results in depth of understanding and change of practice. The University of Wyoming Early Childhood Summer Institute is a model for professional development that fosters reflection, inquiry, and change in beliefs and practice for early childhood practitioners. The 3-day Institute

    Michelle L. Buchanan; Michael Morgan; Margaret Cooney; Mitch Gerharter

    2006-01-01

    78

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

    ERIC Educational Resources Information Center

    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…

    Penrod, James I., Ed.

    79

    NATIONAL PROGRAM DEVELOPMENT INSTITUTES IN TECHNICAL EDUCATION, SUMMER 1967, A COMPILATION OF SELECTED PRESENTATIONS AND INSTRUCTIONAL MATERIALS. LEADERSHIP 16.  

    ERIC Educational Resources Information Center

    SELECTED MATERIALS GENERATED BY THE FOUR 1967 SUMMER LEADERSHIP DEVELOPMENT INSTITUTES IN TECHNICAL EDUCATION ARE PRESENTED. THE MATERIALS WERE COMPILED TO FULFILL A NEED FOR ADDITIONAL INSTRUCTIONAL MATERIALSTO BE USED IN CONDUCTING FUTURE STATE AND LOCALLY SPONSORED TRAINING ACTIVITIES AND INSTITUTES. COMMISSIONED PAPERS ARE--"A DESIGN FOR THE…

    MILLER, A.J.; VALENTINE, I.E.

    80

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

    ERIC Educational Resources Information Center

    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…

    Aleong, Chandra; Aleong, John

    2008-01-01

    81

    SLAC site design aesthetics  

    SciTech Connect

    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.

    Hall, F.F.

    1985-10-01

    82

    SLAC site design aesthetics  

    SciTech Connect

    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: imposed footprint of SLAC; description of selected site; use of earth cover for radiation and sight screens; use of landscaping for cosmetic purposes; use of exterior paint colors to soften SLAC impact on neighbors; relocation of SLAC main entrance; relocation of SLAC collider arcs and experimental hall; parking lots and storage yards; and land use zoning at SLAC.

    Hall, F.F.

    1985-01-01

    83

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

    SciTech Connect

    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.

    NONE

    1997-05-01

    84

    The Roots Institute Homepage: A National Endowment for the Humanities Summer Institute for College Teachers at the Virginia Foundation for the Humanities  

    NSDL National Science Digital Library

    Held at the Virginia Foundation for the Humanities on June 8-July 3, 1998, the NEH Summer Institute for College Teachers was on the African background to American history, and the processes that brought Africans to the British Americas from the seventeenth through the early nineteenth centuries. This site offers information on the Institute and its faculty, background and objectives, and eligibility and application procedures.

    1998-01-01

    85

    Si, Se Puede = Yes, It Can Be Done: The Summer Scholars Transfer Institute Collaborating to Promote Access and Achievement.  

    ERIC Educational Resources Information Center

    This booklet, issued by the Summer Scholars Transfer Institute (SSTI), encourages collaboration in promoting access and achievement in the education of under-represented students at urban community colleges. SSTI is an eleven-day residential program for community college students held at the University of California, Irvine campus. It is designed…

    McGrath, Dennis; Van Buskirk, William

    86

    Ensuring Student Success through Collaboration: Summer Institute Papers and Recommendations of the Council of Chief State School Officers, 1992.  

    ERIC Educational Resources Information Center

    This volume contains papers that were commissioned for the 1992 Council of Chief State School Officers (CCSSO) Summer Institute. These papers form the basis for the CCSSO's study of school-community collaboration, which focuses on the role of the community in ensuring the success of all students. Following the acknowledgements and introduction,…

    Council of Chief State School Officers, Washington, DC.

    87

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

    National Technical Information Service (NTIS)

    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-w...

    L. S. Simkin V. Futch

    2006-01-01

    88

    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

    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);…

    Derbyshire, Desmond C., Ed.

    89

    "Thinking the Practice": Academic Adult Educators' Reflections on Mediating a Summer Institute as a Multicultural Learning Journey for Graduate Students.  

    ERIC Educational Resources Information Center

    Three adult educators who conducted a summer institute for 40 graduate students discuss how their positionalities influence conceptions of pedagogy and multiculturalism and shape inclusive teaching/learning interactions. They describe the sometimes uneasy intersections of the personal, the professional, and the political. (Contains 18 references.)…

    Grace, Andre P.; Gouthro, Patricia A.; Mojab, Shahrzad

    2003-01-01

    90

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

    SciTech Connect

    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.

    Calder, Neil

    2004-02-24

    91

    Transgender Health: A Review and Guidance for Future Research—Proceedings from the Summer Institute at the Center for Research on Health and Sexual Orientation, University of Pittsburgh  

    Microsoft Academic Search

    This article reports on the outcome of the Summer Institute on Transgender Health Research held July 24–26, 2008, at the University of Pittsburgh, Pennsylvania. The institute attendees included a panel of experts in the field of transgender research. The goals of the institute were to provide an opportunity to learn more about transgender health research, to foster a dialogue among

    Emilia Lombardi

    2011-01-01

    92

    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)

    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 Luiseño 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.

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

    2012-12-01

    93

    FACET: SLAC___s New User Facility  

    Microsoft Academic Search

    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 μm) bunches and small (20 μm wide) spot sizes, producing uniquely high power beams. FACET supports studies from many fields

    2012-01-01

    94

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

    ERIC Educational Resources Information Center

    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…

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

    95

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

    National Technical Information Service (NTIS)

    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 inst...

    R. H. Petersen

    1997-01-01

    96

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

    SciTech Connect

    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.

    Jaros, J

    2004-05-17

    97

    Polarization at SLAC  

    SciTech Connect

    A highly polarized electron beam is a key feature. for the Current physics program at SLAC. An electron beam polarization of 80% can now be routinely achieved for typically 5000 hours of machine operation per year. Two main Physics programs utilize the polarized beam. Fixed target experiments in End Station A study the collision of polarized electrons with polarized nuclear targets to elucidate the spin structure of the nucleon and to provide an important test of QCD. Using the SLAC Linear Collider, collisions of polarized electrons with unpolarized positrons allow precise measurements of parity violation in the Z-fermion couplings and provide a very precise measurement of tile weak mixing angle. This paper discusses polarized beam operation at SLAC, and gives an overview of the polarized physics program.

    Woods, M.

    1995-01-01

    98

    FACET: SLAC___s New User Facility  

    SciTech Connect

    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.

    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

    99

    SLAC B Factory computing  

    SciTech Connect

    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.

    Kunz, P.F.

    1992-02-01

    100

    Sleepless at SLAC  

    ScienceCinema

    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!

    101

    Sleepless at SLAC  

    SciTech Connect

    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!

    Dement, William (Stanford Sleep Disorders Center) [Stanford Sleep Disorders Center

    2006-01-23

    102

    Summer Institute to Train Data Processing Teachers for the New Oklahoma State-Wide Computer Science System, Phase II. Final Report.  

    ERIC Educational Resources Information Center

    Twenty-three instructors participated in an 8-week summer institute to develop their technical competency to teach the second year of a 2-year Technical Education Computer Science Program. Instructional material covered the following areas: (1) compiler languages and systems design, (2) cost studies, (3) business organization, (4) advanced…

    Tuttle, Francis

    103

    Luminosity enhancements at SLAC  

    SciTech Connect

    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.

    Coward, D.H.

    1984-04-01

    104

    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)

    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.

    Ward, Kevin

    105

    SLAC All Access: Laser Labs  

    ScienceCinema

    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.

    Minitti, Mike; Woods Mike

    2014-06-03

    106

    SLAC All Access: Laser Labs  

    SciTech Connect

    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.

    Minitti, Mike; Woods Mike

    2013-03-01

    107

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

    ERIC Educational Resources Information Center

    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…

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

    2010-01-01

    108

    Summer Programs for Educators  

    ERIC Educational Resources Information Center

    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…

    Curriculum Review, 2009

    2009-01-01

    109

    SLAC Cosmic Ray Telescope Facility  

    SciTech Connect

    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.

    Va'vra, J.

    2010-02-15

    110

    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)

    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).

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

    2007-12-01

    111

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

    SciTech Connect

    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.

    Deken, Jean Marie; /SLAC

    2006-03-10

    112

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

    ERIC Educational Resources Information Center

    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…

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

    2011-01-01

    113

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

    NASA Technical Reports Server (NTRS)

    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.

    Carlson, Randal D.

    1994-01-01

    114

    SLAC Linac Preparations for FACET  

    SciTech Connect

    The SLAC 3km linear electron accelerator has been cut at the two-thirds point to provide beams to two independent programs. The last third provides the electron beam for the Linac Coherent Light Source (LCLS), leaving the first two-thirds available for FACET, the new experimental facility for accelerator science and test beams. In this paper, we describe this separation and projects to prepare the linac for the FACET experimental program.

    Erickson, R.; Bentson, L.; Kharakh, D.; Owens, A.; Schuh, P.; Seeman, J.; Sheppard, J.C.; Stanek, M.; Wittmer, W.; Yocky, G.; Wienands, U.; /SLAC

    2011-02-07

    115

    Recent GPS Results at SLAC  

    SciTech Connect

    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.

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

    2005-08-17

    116

    Linear collider development at SLAC  

    SciTech Connect

    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.

    Irwin, J.

    1993-08-01

    117

    Performance of the beam position monitor system for the SLAC PEP-II {ital B} factory  

    SciTech Connect

    The beam position monitor (BPM) system for the SLAC PEP-II {ital B} Factory was designed to measure the positions of single-bunch single-turn to multibunch multi-turn beams in both rings of the facility. Each BPM is based on four button-style pickups. At most locations the buttons are connected to provide single-axis information ({ital x} only or {ital y} only). Operating at a harmonic (952 MHz) of the bunch spacing, the BPM system combines broadband and narrowband capabilities and provides data at a high rate. The active electronics system is multiplexed for signals from the high-energy ring (HER) and low-energy ring (LER). The system will be briefly described; however, the main purpose of the present paper is to present operational results. The BPM system operated successfully during commissioning of the HER (primarily) and the LER over the past year. Results to be presented include on-line calibration, single-bunch single-turn resolution ({lt}100 {mu}m), and multibunch multi-turn resolution ({lt}3 {mu}m), multiplexing, and absolute calibration. Thus far, the system has met or exceeded all the requirements that have been tested. The remaining requirements will be tested when both rings are completed and commissioned this summer. In addition, typical results of beam physics studies relying on the BPM system will be presented. {copyright} {ital 1998 American Institute of Physics.}

    Johnson, R.G.; Smith, S.R.; Aiello, G.R. [Stanford Linear Accelerator Center P.O. Box 4349, Stanford, California 94309 (United States)

    1998-12-01

    118

    SLAC accelerator operations report: 1992-1995.  

    National Technical Information Service (NTIS)

    Operational statistics for the linear accelerator programs at SLAC are presented, including run-time records for the SLC, FFTB, and fixed target programs. Also included are summaries of reliability and maintenance-related statistics and a discussion of th...

    R. Erickson C. W. Allen T. K. Inman W. Linebarger M. Stanek

    1995-01-01

    119

    SLAC All Access: Vacuum Microwave Device Department  

    ScienceCinema

    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.

    Hasse, Andy

    2014-06-13

    120

    FEL research and development at the SLAC sub-picosecond photon source, SPPS  

    Microsoft Academic Search

    An upgrade project to the SLAC linac allows ultra-short electron bunches to be interleaved with the routine high-energy physics program operation, for use with an undulator to produce short-pulse, high-brightness X-rays. The linac upgrade comprises of the installation in the summer of 2002 of a bunch compressor chicane of similar design to the Linac Coherent Light Source (LCLS) project. A

    L. Bentson; P. Bolton; E. Bong; P. Emma; J. Galayda; J. Hastings; P. Krejcik; C. Rago; J. Rifkin; C. M Spencer

    2003-01-01

    121

    FEL Research and Development at the SLAC SubPicosecond Photon Source, SPPS  

    Microsoft Academic Search

    An upgrade project to the SLAC linac allows ultra-short electron bunches to be interleaved with the routine high-energy physics program operation, for use with an undulator to produce short-pulse, high-brightness x-rays. The linac upgrade comprises of the installation in the summer of 2002 of a bunch compressor chicane of similar design to the Linac Coherent Light Source (LCLS) project. A

    Krejcik

    2002-01-01

    122

    X-BAND KLYSTRON DEVELOPMENT AT SLAC  

    SciTech Connect

    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.

    Vlieks, Arnold E.; /SLAC

    2009-08-03

    123

    New generation control system at SLAC  

    SciTech Connect

    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.

    Melen, R.

    1981-03-01

    124

    Recent progress in electron scattering at SLAC  

    SciTech Connect

    A new experiment on ep elastic scattering at large momentum transfer, Experiment E136, has recently completed data taking. A new measurement of deep inelastic electron scattering from nuclear targets, Experiment E139, has been completed and preliminary results are available. A new program of experiments has begun, called Nuclear Physics at SLAC (NPAS), that will use a new injector on the SLAC linac to provide high intensity beams in the energy range from 0.5 to 6 GeV.

    Arnold, R.G.

    1984-09-01

    125

    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)

    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.

    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

    126

    SLAC (Stanford Linear Accelerator Center) Site Design Aesthetics.  

    National Technical Information Service (NTIS)

    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 u...

    F. F. Hall

    1985-01-01

    127

    Teachers' Assessments of Professional Development Quality, Value, and Benefits: Results from Seven Annual Surveys of Participants in National Writing Project Summer Institutes  

    ERIC Educational Resources Information Center

    The National Writing Project (NWP) is the nation's premier professional development network dedicated to improving the teaching of writing. The NWP network comprises nearly 200 local sites in all 50 states, Puerto Rico, and the Virgin Islands. This report presents the results of a seven-year survey study of teachers participating in NWP summer

    Stokes, Laura; St. John, Mark

    2008-01-01

    128

    Summer Astronomy  

    ERIC Educational Resources Information Center

    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…

    Riddle, Bob

    2004-01-01

    129

    Physics results with polarized electrons at SLAC  

    SciTech Connect

    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.

    Prescott, C.Y.

    1996-03-01

    130

    Computer control of rf at SLAC  

    SciTech Connect

    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.

    Schwarz, H.D.

    1985-03-01

    131

    "MITS" You Each Summer  

    NSDL National Science Digital Library

    The Museum Institute for Teaching Science (MITS) promotes the teaching of participatory, hands-on and minds-on, inquiry-based science, technology, engineering, and mathematics (STEM) at the K-8 grade levels, through collaboration among informal science education institutions. To this end, MITS has developed three programs: a two-week Summer Institute for K-8 teachers taught by museum educators; a quarterly resource publication for K-6 teachers; and three seminars that help museum educators stay up to date on latest methods and education reforms.

    Wade, Emily V.; Nash, Mary C.

    2008-01-01

    132

    Future Proof for Physics: Preserving the Record of SLAC  

    ERIC Educational Resources Information Center

    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.)

    Deken, Jean Marie

    2005-01-01

    133

    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

    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,…

    1967

    134

    Recent Ground Motion Studies at SLAC  

    SciTech Connect

    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.

    Seryi, Andrei

    2000-06-28

    135

    SLAC All Access: X-ray Microscope  

    SciTech Connect

    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.

    Nelson, Johanna; Liu, Yijin

    2012-08-14

    136

    SLAC All Access: X-ray Microscope  

    ScienceCinema

    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.

    Nelson, Johanna; Liu, Yijin

    2014-06-13

    137

    LLRF System Upgrade for the SLAC Linac.  

    National Technical Information Service (NTIS)

    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 co...

    B. Hong R. Akre V. Pacak

    2006-01-01

    138

    LCLS LLRF Upgrades to the SLAC LINAC.  

    National Technical Information Service (NTIS)

    The Linac Coherent Light Source (LCLS) at SLAC will be the brightest X-ray laser in the world when it comes on line. In order to achieve the brightness a 200fS length electron bunch is passed through an undulator. To create the 200fS, 3kA bunch, a 10pS el...

    B. Hong D. Dowell J. Frisch P. Emma R. Akre

    2007-01-01

    139

    Resonant Kicker System Development at SLAC  

    Microsoft Academic Search

    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

    Tony Beukers; John Krzaszczak; Marc Larrus; Antonio de Lira

    2009-01-01

    140

    Liquid Hydrogen Target Experience at SLAC.  

    National Technical Information Service (NTIS)

    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 ...

    J. G. Weisend R. Boyce A. Candia W. Kaminskas J. Mark

    2005-01-01

    141

    An overview of the SLAC results  

    SciTech Connect

    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.

    Prescott, C.Y.

    1996-03-01

    142

    Stanford Linear Accelerator Center (SLAC): On-line Particle Physics Information  

    NSDL National Science Digital Library

    The Stanford Linear Accelerator Center (SLAC) Library provides this electronic "guide," which organizes and annotates online databases, Webpages, catalogs, and directories that are of value to the particle physics community. Online resources are categorized by data, collaborations and experiments, conferences, current awareness services, five different directories (for research institutions, libraries, etc.), online scientific papers and journals, four types of educational sites, and software directories. Within each section, links to outside databases and Internet sites direct users to additional resources on particle physics.

    143

    Summer Modification  

    NASA Technical Reports Server (NTRS)

    5 May 2006 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the outer edge of the south polar residual cap of Mars during southern summer. The variability in brightness across the image would not be as apparent had the data been acquired during late winter or spring, owing to the presence of seasonally deposited, carbon dioxide frost. Over the spring and into early summer, the seasonal carbon dioxide is removed through sublimation, and then the thicker, older accumulations of carbon dioxide -- deposited hundreds or thousands of years ago -- erodes. As this occurs, some surfaces become darker, either because they are roughened by erosion, contain dark material such as mineral dust, or both.

    Location near: 86.9oS, 111.7oW Image width: 3 km (1.9 mi) Illumination from: upper left Season: Southern Summer

    2006-01-01

    144

    LLRF System Upgrade for the SLAC Linac  

    SciTech Connect

    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.

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

    2012-07-06

    145

    A New Control Room for SLAC Accelerators  

    SciTech Connect

    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.

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

    2012-06-04

    146

    LCLS LLRF Upgrades to the SLAC Linac  

    SciTech Connect

    The Linac Coherent Light Source (LCLS) at SLAC will be the brightest X-ray laser in the world when it comes on line. In order to achieve the brightness a 200fS length electron bunch is passed through an undulator. To create the 200fS, 3kA bunch, a 10pS electron bunch, created from a photo cathode in an RF gun, is run off crest on the RF to set up a position to energy correlation. The bunch is then compressed by chicanes. The stability of the RF system is critical in setting up the position to energy correlation. Specifications derived from simulations require the RF system to be stable to below 200fS in several critical injector stations and the last kilometer of linac. The SLAC linac RF system is being upgraded to meet these requirements.

    Akre, R.; Dowell, D.; Emma, P.; Frisch, J.; Hong, B.; Kotturi, K.; Krejcik, P.; Wu, J.; /SLAC; Byrd, J.; /LBL, Berkeley

    2007-10-04

    147

    Polar Summer  

    NASA Technical Reports Server (NTRS)

    6 April 2006 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows south polar mesas composed largely of solid carbon dioxide separated by generally circular depressions. The arcuate scarps, which delineate the mesas, retreat approximately 3 meters per Mars year (two Earth years), owing to sublimation which occurs primarily during the martian summer months.

    Location near: 86.9oS, 340.2oW Image width: 3 km (1.9 mi) Illumination from: upper left Season: Southern Summer

    2006-01-01

    148

    LCLS LLRF Upgrades to the SLAC linac  

    Microsoft Academic Search

    The Linac Coherent Light Source (LCLS) at SLAC will be the brightest X-ray laser in the world when it comes on line. In order to achieve the brightness a 200fS length electron bunch is passed through an undulator. To create the 200fS, 3kA bunch, a 10pS electron bunch, created from a photo cathode in an RF gun, is run off

    R. Akre; D. Dowell; P. Emma; J. Frisch; B. Hong; K. Kotturi; P. Krejcik; J. Wu; J. Byrd

    2007-01-01

    149

    Summer Days.  

    ERIC Educational Resources Information Center

    In response to regular faculty complaints about mainstreamed students, a 5-week Summer Special Education Program was implemented in 1986 at the Western Navajo Agency's Tuba City Boarding School. The program's purpose was to train regular teachers and support personnel in special education procedures and practices and to provide the exceptional…

    Foster, Carl; Beeman, Sandi

    150

    [The medical school and its training center at the District Institute of National Health in Nové Zámky from the viewpoint of medical students engaged in professional and social medicine summer practice].  

    PubMed

    Within the framework of professional and social practice of medical students in the district institute of national health in Nové Zámky a questionnaire survey was made concerned with the attitudes and views of students as regards training at the medical faculties and as regards summer practice. The authors consider the information obtained from 37 students of different medical faculties in the SSR and CSR, ensuing from their first empirical experience in the field, a valuable feedback as regards the standard of training and shaping of the profile of the qualified doctor for practice. On the whole the students are satisfied with the conditions of practical work in Nové Zámky but have also some concrete concructive comments and suggestions for optimation and intensification of undergraduate training and therapeutic and preventive care. The participation of medical students in the above activities is a significant factor shaping their professional identity. PMID:2225200

    Horský, A; Máthé, R; Borbély, L

    1990-08-01

    151

    Summer Reading  

    NSDL National Science Digital Library

    Summer is a great time to kick back with a good book. Try The Bailey School Kids Series... it\\'s Great! Bailey School Kids Jan Brett is my favorite artist. It takes longer to look at the pictures than it does to read the book. But it\\'s worth it. Jan Brett I love Bunnicula, almost as much as I love Harold. Find out ...

    Roner, Mrs.

    2005-03-31

    152

    Survey and Alignment of SLAC's B Factory  

    SciTech Connect

    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.

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

    2011-09-08

    153

    SLAC PEP transverse feedback system (Engineering Materials)  

    SciTech Connect

    The drawings listed on the master auxiliary drawing list provide the data and specifications for constructing the Transverse Feedback System as used on the SLAC PEP Storage Ring. The drawings cover all of the electronics of the system as shown on the system block diagram BD 209-300-00-R2. The beam line components are not included with this set of drawings, namely the strip line pickup mechanical assemblies. The system detects transverse positions of the circulating beams and through electronic circuits and computer control the beams are returned to their correct orbits.

    Not Available

    1983-10-31

    154

    SLAC Parallel Tracking Code Development and Applications  

    SciTech Connect

    The increase in single processor speed based on Moore's law alone will not be able to deliver the dramatic speedup needed in many beam tracking simulations to uncover very slowly evolving effects in a reasonable time. SLAC has embarked on an effort to bring the power of parallel computing to bear on such computations with the goal to reduce the turnaround time by orders of magnitude so that the results may impact present facilities and future machine designs. This poster will describe the approaches adopted for parallelizing the LIAR code and the ION{_}MAD code. The scalability of these tracking codes and their further improvement will be discussed.

    McCandless, Brian C.

    2001-01-19

    155

    X-ray Astronomy at SLAC  

    SciTech Connect

    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.

    Saz Parkinson, P

    2005-04-06

    156

    Pulse modulator developments in support of klystron testing at SLAC  

    Microsoft Academic Search

    Several families of high power klystrons in S- and X-Band are being developed in the Klystron Laboratory at SLAC. To support these developments, a number of new pulse modulators are being designed from scratch, or upgraded from existing laboratory test modulators. This paper outlines the modulator parameters available in the SLAC Klystron Laboratory, and discusses two new modulators that are

    R. F. Koontz; R. Cassel; J. de Lamare; D. Ficklin; S. Gold; K. Harris

    1993-01-01

    157

    SLAC three-body partial wave analysis system  

    SciTech Connect

    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.

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

    1985-10-01

    158

    SLAC workshop on high energy electroproduction and spin physics  

    SciTech Connect

    These Proceedings contain copies of the transparencies presented at the Workshop on High Energy Electroproduction and Spin Physics held at SLAC on February 5--8, 1992. The purpose of this Workshop was to bring people together to discuss the possibilities for new experiments using the SLAC high intensity electron and photon beams and the facilities of End Station A.

    Not Available

    1992-01-01

    159

    SLAC workshop on high energy electroproduction and spin physics  

    SciTech Connect

    These Proceedings contain copies of the transparencies presented at the Workshop on High Energy Electroproduction and Spin Physics held at SLAC on February 5--8, 1992. The purpose of this Workshop was to bring people together to discuss the possibilities for new experiments using the SLAC high intensity electron and photon beams and the facilities of End Station A.

    Not Available

    1992-04-01

    160

    Network resource and applications management at SLAC  

    SciTech Connect

    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.

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

    1996-02-01

    161

    Results from the SLAC NLC Test Accelerator  

    NASA Astrophysics Data System (ADS)

    The design for the Next Linear Collider (NLC) at SLAC is based on two 11.4 GHz linacs operating at an unloaded acceleration gradient of 50 MV/m increasing to 85 MV/m as the energy is increased from 1/2 TeV to 1 TeV in the center of mass[1]. During the past several years there has been tremendous progress on the development of 11.4 GHz (X-band) RF systems. These developments include klystrons which operate at the required power and pulse length, pulse compression systems that achieve a factor of four power multiplication and structures that are specially designed to reduce long-range wakefields. Together with these developments, we have constructed a 1/2 GeV test accelerator, the NLC Test Accelerator (slac.stanford.edu/grp/ara/nlcta/>NLCTA). The NLCTA will serve as a test bed as the design of the NLC is refined. In addition to testing the RF system, the NLCTA is designed to address many questions related to the dynamics of the beam during acceleration, in particular the study of multibunch beam loading compensation and transverse beam break-up. In this paper we present the results from the initial round of experiments with the NLCTA. In particular we will cover the initial commisioning, experience with beamline and RF instrumentation, and finally, tests of beamloading compensation and transverse beam breakup.

    Ruth, Ronald D.

    1997-05-01

    162

    SLAC low emittance accelerator test facility  

    SciTech Connect

    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.

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

    1986-05-01

    163

    Summer Series 2012 - Shashi Buluswar  

    ScienceCinema

    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.

    164

    Summer Series 2012 - Shashi Buluswar  

    ScienceCinema

    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.

    Shashi Buluswar

    2013-06-24

    165

    Summer Series 2012 - Shashi Buluswar  

    SciTech Connect

    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.

    Shashi Buluswar

    2012-08-08

    166

    Summer 1993 Transient Student Report.  

    ERIC Educational Resources Information Center

    A study was conducted by the Trumbull Campus (TC) of Kent State University, in Ohio, to determine the motivations, objectives, and level of satisfaction of transient students, or students pursuing a degree at another institution but enrolled in courses at TC. Surveys were mailed to 50 transient students enrolled in summer 1993, with completed…

    Kent State Univ., Warren, OH. Office of Institutional Research.

    167

    Teacher Institutes  

    NSDL National Science Digital Library

    By putting teachers back into an intense learning and leadership environment, the National Science Foundation (NSF) is embarking on a major effort to improve the mathematics and science education of the nationâs youth. The three-year $5.5 million Teacher Institute project in Park City, Utah, involves middle and high school mathematics teachers from three school districts, including a small system in McAllen, Texas, and larger systems in Cincinnati, Ohio and Seattle, Washington. In summer resident sessions, the institute at Park City will train middle and secondary school teachers to become teacher-leaders.

    168

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

    Microsoft Academic Search

    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

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

    2009-01-01

    169

    Microprocessors in physics experiments at SLAC  

    SciTech Connect

    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.

    Rochester, L.S.

    1981-04-01

    170

    Cerenkov ring imaging detector development at SLAC  

    SciTech Connect

    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.

    Williams, S.H.

    1984-06-01

    171

    Network management and performance monitoring at SLAC  

    SciTech Connect

    The physical network plant and everything attached to it, including the software running on ``computers`` and other peripheral devices is the {bold system}. Subjectively, the ultimate measurers of {bold system} performance are the users and their perceptions of the performance of their networked applications. The performance of a {bold system} is affected by the physical network plant (routers, bridges, hubs, etc.) as well as by every ``computer`` and peripheral device that is attached to it, and the software running on the computers and devices. Performance monitoring of a network must therefore include computer systems and services monitoring as well as monitoring of the physical network plant. This paper will describe how this challenge has been tackled at SLAC, and how, via the World Wide Web, this information is made available for quick perusal by concerned personnel and users.

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

    1995-08-01

    172

    Commissioning of SLAC SLD 45-Degree Chambers  

    SciTech Connect

    The SLD experiment at the Stanford Linear Accelerator Center had a significant gap in its muon tracking coverage, provided by the Warm Iron Calorimeter. Supplemental planes of limited streamer tube chambers were added to improve the coverage in the vicinity of the gap at 0.65 < |cos{theta}| < 0.85. A software effort to upgrade the tracking software for this system is detailed. The commissioning of the forty-five degree chamber region of the SLAC SLD Warm Iron Calorimeter is presented. This task involved the completion of the forty-five degree chamber region geometry for the Warm Iron Calorimeter's fitter and swimmer and the changing of the way multiple scattering effects are treated in the fitter algorithm.

    Eschenburg, Vance O.

    2002-07-19

    173

    SLAC divertor channel entrance thermal stress analysis  

    SciTech Connect

    X-ray beams emerging from the new SLAC electron-positron storage ring (PEP) impinge on the entrance to tangential divertor channels causing highly localized heating in the channel structure. Analyses were completed to determine the temperatures and thermally-induced stresses due to this heating. These parts are cooled with water flowing axially over them at 30/sup 0/C. The current design and operating conditions should result in the entrance to the new divertor channel operating at a peak temperature of 123/sup 0/C with a peak thermal stress at 91% of yield. Any micro-cracks that form due to thermally-induced stresses should not propagate to the coolant wall nor form a path for the coolant to leak into the storage ring vacuum. 34 figs., 4 tabs.

    Johnson, G.L.; Stein, W.; Lu, S.C.; Riddle, R.A.

    1985-07-10

    174

    Pulsed rf superconductivity program at SLAC  

    SciTech Connect

    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.

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

    1984-08-01

    175

    Parameters of the SLAC Next Linear Collider  

    SciTech Connect

    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.

    Raubenheimer, T.; Adolphsen, C.; Burke, D. [and others

    1995-05-01

    176

    Report on the 2008 ISAGA Summer School  

    ERIC Educational Resources Information Center

    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."

    van de Westelaken, Marleen

    2011-01-01

    177

    NCI at Frederick: Summer Student Intern Program  

    Cancer.gov

    Summer programs at the National Institutes of Health (NIH) provide an opportunity to spend a summer working at the NIH side-by-side with some of the leading scientists in the world, in an environment devoted exclusively to biomedical research.

    178

    Indian Summer  

    SciTech Connect

    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.

    Galindo, E. [Sho-Ban High School, Fort Hall, ID (United States)

    1997-08-01

    179

    2004 East Asia Pacific Summer Institute Awardees  

    NSF Publications Database

    ... Science Australia Monash University School of Physics and Materials Engineering 57 Howard Shaun ... University Plasma Physics Australia Australian National University, Plasma Research Laboratory 63 ...

    180

    Antarctica--the Ultimate Summer Institute.  

    ERIC Educational Resources Information Center

    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…

    Van Wey, Nate J.

    1995-01-01

    181

    Preliminary Report IPI Institute. Summer 1966.  

    ERIC Educational Resources Information Center

    Individually Prescribed Instruction (IPI), a project based on a carefully sequenced and detailed listing of behaviorally stated objectives, lesson materials geared to instructional objectives, provision for diagnosis of pupil skills and abilities, written prescriptions to guide the pupil's work, and pupil oriented instruction, is outlined first in…

    Research for Better Schools, Inc., Philadelphia, PA.

    182

    1998 Complex Systems Summer School  

    SciTech Connect

    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.

    NONE

    1998-12-15

    183

    SLAC RF Source Research at X-Band  

    Microsoft Academic Search

    X-band klystrons capable of 75 MW and utilizing either solenoidal or Periodic Permanent Magnet (PPM) focusing are undergoing design, fabrication and testing at the Stanford Linear Accelerator Center (SLAC). The klystron development is part of an effort to realize components necessary for the construction of the Next Linear Collider (NLC). SLAC has developed a solenoidal-focused X-band klystron which is currently

    D. Sprehn

    2003-01-01

    184

    Recent upgrade of the klystron modulator at SLAC  

    Microsoft Academic Search

    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 [1]. Each of these original modulators was designed to provide 250 kV, 262 A and 3.5 µS at up to 360 pps using an inductance-capacitance resonant charging system, a modified type-E

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

    2011-01-01

    185

    100 GeV SLAC Linac  

    NASA Astrophysics Data System (ADS)

    The SLAC beam energy can be increased from the current 50 GeV to 100 GeV, if we change the operating frequency from the present 2856 MHz to 11424 MHz, using technology developed for the NLC. We replace the power distribution system with a proposed NLC distribution system as shown in Fig. 1. The four 3 meter s-band 820 nS .ll time accelerator sections are replaced by six 2 meter x-band 120 nS .ll time sections. Thus the accelerator length per klystron retains the same length, 12 meters. The 4050 65MW- 3.5microS klystrons are replaced by 75MW-1.5microS permanent magnet klystrons developed here and in Japan. The present input to the klystrons would be multiplied by a factor of 4 and possibly ampli.ed. The SLED cavities have to be replaced. The increase in beam voltage is due to the higher elastance to group velocity ratio, higher compression ratio and higher unloaded to external Q ratio of the new SLED cavities. The average power input is reduced because of the narrower klystron pulse width and because the klystron electro-magnets are replaced by permanent magnets.

    Farkas, Z. D.

    2002-03-01

    186

    Parton distributions from SMC and SLAC data  

    SciTech Connect

    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.

    Ramsey, G.P. [Loyola Univ., Chicago, IL (United States)]|[Argonne National Lab., IL (United States). High Energy Physics Div.; Goshtasbpour, M. [Center for Theoretical Physics and Mathematics, Tehran (Iran, Islamic Republic of)]|[Shahid Beheshti Univ., Tehran (Iran, Islamic Republic of)

    1996-01-04

    187

    Results from the SLAC NLC test accelerator  

    SciTech Connect

    The design for the Next Linear Collider (NLC) at SLAC is based on two 11.4 GHz linacs operating at an unloaded acceleration gradient of 50 MV/m increasing to 85 MV/m as the energy is increased from 1/2 TeV to 1 TeV in the center of mass. During the past several years there has been tremendous progress on the development of 11.4 GHz (X-band) RF systems. These developments include klystrons which operate at the required powder and pulse length, pulse compression systems that achieve a factor of four power multiplication and structures that are specially designed to reduce long-range wakefields. Together with these developments, we have constructed a 1/2 GeV test accelerator, the NLC Test Accelerator (NLCTA). The NLCTA will serve as a test bed as the design of the NLC is refined. In addition to testing the RF system, the NLCTA is designed to address many questions related to the dynamics of the beam during acceleration, in particular, multibunch beam-loading compensation and transverse beam break-up. In this paper we describe the NLCTA and present results from initial experiments.

    Ruth, R.D.; Adolphsen, C.; Allison, S. [and others

    1997-06-01

    188

    COSMIC - The SLAC Control System Migration Challenge  

    SciTech Connect

    The current SLC control system was designed and constructed over 20 years ago. Many of the technologies on which it was based are obsolete and difficult to maintain. The VMS system that forms the core of the Control System is still robust but third party applications are almost non-existent and its long-term future is in doubt. The need for a Control System at SLAC that can support experiments for the foreseeable future is not in doubt. The present B-Factory or PEPII experiment is projected to run at least 10 years. An FEL laser of unprecedented intensity plus an ongoing series of fixed target experiments is also in our future. The Next Linear Collider or NLC may also be in our future although somewhat farther distant in time. The NLC has performance requirements an order of magnitude greater than anything we have built to date. In addition to large numbers of IOCs and process variables, Physicists would like to archive everything all the time. This makes the NLC Control System a bit like a detector system as well. The NLC Control System will also need the rich suite of accelerator applications that are available with the current SLC Control System plus many more that are now only a glimmer in the eyes of Accelerator Physicists. How can we migrate gradually away from the current SLC Control System towards a design that will scale to the NLC while keeping everything operating smoothly for the ongoing experiments?

    MacKenzie, Ronald R.

    2002-01-18

    189

    Summer in the South  

    NASA Technical Reports Server (NTRS)

    [figure removed for brevity, see original site] Context image for PIA03023 Summer in the South

    This VIS image shows a small area just off the margin of the southern polar cap. During winter this region is completely covered by frost. Taken during the middle of summer, this image illlustrates the surface markings that appear as the frost and ice sublimate from different portions of the surface.

    Image information: VIS instrument. Latitude 79.6S, Longitude 59.1E. 19 meter/pixel resolution.

    Note: this THEMIS visual image has not been radiometrically nor geometrically calibrated for this preliminary release. An empirical correction has been performed to remove instrumental effects. A linear shift has been applied in the cross-track and down-track direction to approximate spacecraft and planetary motion. Fully calibrated and geometrically projected images will be released through the Planetary Data System in accordance with Project policies at a later time.

    NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission for NASA's Office of Space Science, Washington, D.C. The Thermal Emission Imaging System (THEMIS) was developed by Arizona State University, Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. The THEMIS investigation is led by Dr. Philip Christensen at Arizona State University. Lockheed Martin Astronautics, Denver, is the prime contractor for the Odyssey project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL, a division of the California Institute of Technology in Pasadena.

    2005-01-01

    190

    USAF Summer Research Program - 1994 Summer Faculty Research Program Final Reports, Volume 5B, Wright Laboratory.  

    National Technical Information Service (NTIS)

    The United States Air Force Summer Faculty Research Program (USAF- SFRP) is designed to introduce university, college, and technical institute faculty members to Air Force research. This is accomplished by the faculty members being selected on a nationall...

    G. Moore

    1994-01-01

    191

    Summer Research Program - 1997 Summer Research Extension Program Volume 4A Wright Laboratory.  

    National Technical Information Service (NTIS)

    The United States Air Force Summer Research Program (SRP) is designed to introduce university, college, and technical institute faculty members to Air Force research. This is accomplished by the faculty members, graduate students, and high school students...

    G. Moore

    1997-01-01

    192

    Slithering into Summer  

    ERIC Educational Resources Information Center

    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

    Scott, Catherine; Matthews, Catherine

    2012-01-01

    193

    Progress report on the SLAC Linear Collider  

    SciTech Connect

    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.

    Kozanecki, W.

    1987-11-01

    194

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

    ScienceCinema

    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

    Drell, Persis [SLAC Director

    2011-06-08

    195

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

    Federal Register 2010, 2011, 2012, 2013

    ...Review; Comment Request (30-day): National Institute of Nursing Research (NINR) Summer Genetics Institute Alumni Survey SUMMARY...this publication. Proposed Collection: National Institute of Nursing Research (NINR) Summer Genetics Institute Alumni...

    2012-11-15

    196

    Oklo and the Speed of Light at SLAC’s Next Colloquium!  

    SciTech Connect

    Natural nuclear reactors? Changes in the speed of light? If either of these concepts seem implausible to you now they certainly won’t once Dr. Steve Lamoreaux (LANL) delivers his SLAC Colloquium lecture in the Panofsky Auditorium on November 7th at 4:15 pm entitled The Oklo Natural Reactor and the Time Variability of the Fundamental Constants of Nature. This lecture is a rare opportunity to learn not only about Oklo’s incredible natural nuclear reactors but also to gain understanding about how the present-day study of these sites may alter our understanding of fundamental constants such as the speed of light. This event is a must-see for the curious!

    Dr. Steve Lamoreaux

    2005-11-07

    197

    SLAC Scanner Processor: a FASTBUS module for data collection and processing  

    SciTech Connect

    A new, general purpose, programmable FASTBUS module, the SLAC Scanner Processor (SSP), is introduced. Both hardware and software elements of SSP operation are discussed. The role of the SSP within the upgraded Mark II Detector at SLAC is described.

    Brafman, H.; Glanzman, T.; Lankford, A.J.; Olsen, J.; Paffrath, L.

    1984-10-01

    198

    A Solid State Modulator for Driving SLAC 5045 Klystrons  

    SciTech Connect

    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.

    Lamare, Jeffrey E

    2002-09-19

    199

    RF pulse compression in the NLC test accelerator at SLAC  

    SciTech Connect

    At the Stanford Linear Accelerator Center (SLAC), the authors are designing a Next Linear Collider (NLC) with linacs powered by X-band klystrons with rf pulse compression. The design of the linac rf system is based on X-band prototypes which have been tested at high power, and on a systems-integration test - the Next Linear Collider Test Accelerator (NLCTA) - which is currently under construction at SLAC. This paper discusses some of the systems implications of rf pulse compression, and the use of pulse compression in the NLCTA, both for peak power multiplication and for controlling, by rf phase modulation, intra-pulse variations in the linac beam energy.

    Lavine, T.L.

    1995-02-01

    200

    LP Summer Student Program  

    Cancer.gov

    D  CCR Home   About CCR   CCR Intranet        Laboratory of Pathology LP Home Clinical Services Basic Sciences Training LP Staff Accessibility of Web Site LP Summer Student Program 2003/2004 Poster Day Images Past Student Images Summer Student Home About

    201

    Summer Library Reading Programs  

    ERIC Educational Resources Information Center

    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…

    Fiore, Carole D.

    2007-01-01

    202

    Summer Correspondence Program.  

    ERIC Educational Resources Information Center

    THE FOLLOWING IS THE FULL TEXT OF THIS DOCUMENT: The goals of the Summer Correspondence Program have been to help students maintain their basic skills and avoid summer fall-out, as well as to promote parent involvement and positive community relations. After Proposition 13 left no funds for continuation of summer school programs, Sulphur Springs…

    Sulphur Springs Union Elementary School District, Canyon Country, CA.

    203

    Slowing the Summer Slide  

    ERIC Educational Resources Information Center

    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…

    Smith, Lorna

    2012-01-01

    204

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

    ERIC Educational Resources Information Center

    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…

    Heinz, Anne K.; Lewis, Alcinda C.

    2009-01-01

    205

    Summer Program Aims to Improve Literacy Skills of Black Male Teens  

    ERIC Educational Resources Information Center

    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…

    West, Cassandra

    2012-01-01

    206

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

    SciTech Connect

    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)

    Keller, L. P.; Edminster, D. [eds.] [eds.

    1986-01-01

    207

    Thermal Stress Analysis of the SLAC Moveable Mask. Addendum 2.  

    National Technical Information Service (NTIS)

    X-ray beams emerging from the new SLAC electron-positron storage ring (PEP) can impinge on the walls of tangential divertor channels. A moveable mask made of 6061-T6 aluminum is installed in the channel to limit wall heating. The mask is cooled with water...

    G. L. Johnson

    1985-01-01

    208

    Stability review of SLAC's L-band sheet beam klystron  

    Microsoft Academic Search

    A review of L-band sheet beam development at SLAC National Accelerator Laboratory's Klystron Department. The measured current density profile of a 40:1 elliptical beam is presented. A review of instabilities discovered while simulating the klystron are presented.

    A. Jensen; C. Adolphsen; K. Bane; A. Burke; A. Haase; E. Jongewaard; Z. Li; D. Martin; D. Sprehn; G. Stupakov

    2011-01-01

    209

    Energy efficient deQing for SLAC Klystron Modulators.  

    National Technical Information Service (NTIS)

    Two hundred and forty Klystron Modulator Stations at SLAC were converted to a new deQing circuit configuration. With the help of the new deQing circuit, the energy stored in a charging choke at the moment of deQing is no longer dissipated in a resistor bu...

    V. V. Nesterov R. L. Cassel

    1993-01-01

    210

    An evaluation of the 1997 JPL Summer Teacher Enhancement Program  

    SciTech Connect

    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.

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

    1997-10-20

    211

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

    SciTech Connect

    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.

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

    2009-01-15

    212

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

    Federal Register 2010, 2011, 2012, 2013

    ...Institutes of Health National Institute of Nursing Research Notice of Closed Meeting Pursuant...Name of Committee: National Institute of Nursing Research Special Emphasis Panel, Summer...Review Officer, National Institute of Nursing Research, National Institutes of...

    2011-09-15

    213

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

    Federal Register 2010, 2011, 2012, 2013

    ...Institutes of Health National Institute of Nursing Research; Notice of Closed Meetings Pursuant...Name of Committee: National Institute of Nursing Research Special Emphasis Panel, Summer...Review Officer, National Institute of Nursing Research, National Institutes of...

    2011-02-28

    214

    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

    215

    Celebrate Summer with Reading  

    NSDL National Science Digital Library

    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 chairs, flags, and fireworks schedules; collect some reading material for a summer of personal enrichment.

    Texley, Juliana

    2007-07-01

    216

    A Summer Doorway to Science Careers.  

    ERIC Educational Resources Information Center

    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)

    Michalek, Arthur M.; And Others

    1986-01-01

    217

    Summer Programs Offer Great Ideas for Teachers  

    ERIC Educational Resources Information Center

    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…

    Pantin, Travis

    2007-01-01

    218

    Can Text Messages Mitigate Summer Melt?  

    ERIC Educational Resources Information Center

    Higher education officials have long been familiar with the concept of "summer melt," where students who have paid a deposit to attend one college or university instead matriculate at a different institution, usually presumed to be of comparable quality. In previous research, drawing on longitudinal data from various urban school districts…

    Castleman, Benjamin L.; Page, Lindsay C.

    2013-01-01

    219

    FASEB Summer Research Conferences  

    NSDL National Science Digital Library

    This website provides information regarding summer research conferences hosted internationally by FASEB. The conferences spread a wide range of scientific specialties and serve academics and health professionals.

    2012-07-24

    220

    Computer Summer Camp.  

    ERIC Educational Resources Information Center

    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)

    Zabinski, Toby F.; Zabinski, Michael P.

    1979-01-01

    221

    The Linac Coherent Light Source Project at SLAC  

    SciTech Connect

    The Linac Coherent Light Source (LCLS) is an x-ray free-electron laser project presently under construction at SLAC. A 14-GeV high-brightness electron beam is produced in the last kilometer of the existing SLAC linear accelerator, generating coherent x-ray radiation in a 130-m long undulator. The peak x-ray brightness is 10 orders of magnitude higher than existing 3rd generation light sources with a wavelength of 1.5 Angstroms and a pulse duration as short as one femtosecond, opening limitless scientific opportunities in the world of the ultra-small and ultra-fast. This presentation will describe the project scope and status, highlighting especially the key accelerator physics challenges.

    Emma, Paul (SLAC) [SLAC

    2007-01-31

    222

    Determination of Longitudinal Phase Space in SLAC Main Accelerator Beams  

    SciTech Connect

    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.

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

    2005-06-07

    223

    Laser Tracker Test Facility at SLAC - Progress Report  

    SciTech Connect

    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.

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

    2008-02-22

    224

    Linac design for the LCLS project at SLAC  

    SciTech Connect

    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.

    Bharadwaj, V.K.; Bane, K.; Clendenin, J. [and others

    1997-05-01

    225

    SLAC Next-Generation High Availability Power Supply  

    SciTech Connect

    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.

    Bellomo, P.; MacNair, D.; /SLAC; ,

    2010-06-11

    226

    An X-Band Gun Test Area at SLAC  

    SciTech Connect

    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.

    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.; /SLAC; Marsh, R.A.; Anderson, S.G.; Hartemann, F.V.; Houck, T.L.; /LLNL, Livermore

    2012-09-07

    227

    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.

    228

    Doing the "Institutional Rag."  

    ERIC Educational Resources Information Center

    Ninety-four teachers from various subject fields and grade levels participated in a three-week summer session at Lincoln Center Institute in New York City to learn ways of making art and the aesthetic experience a part of the general educational system. (BM)

    Roth, Edith Brill

    1978-01-01

    229

    Science Videos from the SLAC Public Lecture Series  

    DOE Data Explorer

    The SLAC Public Lecture Series is sponsored several times a year by the SLAC Users Association and the SSRL. Distinguished scientists from SLAC, from SSRL, and from other arenas of High Energy Physics present lectures packed with scientific information that even laypeople can understand. A sampling of video titles includes: 1) Hunting the Elusive Higgs Boson and the Origin of Mass, Lance Dixon; 2) Dark Energy. What the…? Dr. Risa Wechsler; 3) The Dark Side of the Universe, Marusa Bradac; 4) The Large Hadron Collider: Redefining High Energy, Dr. Sarah Demers; 5) Robots: Fantasy and Reality, Dr. David Grossman; 6) Hydrogen: Fueling the Future, Jennifer Leisch; 7) Making Molecular Movies: 10,000,000,000,000 Frames per Second, Kelly Gaffney; 8) The Violent Universe, Dr. Eduardo do Couto e Silva; 9) A Comet on Earth: Results from the Stardust Mission, Sean Brennan; 10) Whispers of the Big Bang, Sarah Church; 11) Space: The Hunt for Hidden Dimensions, Dr. JoAnne Hewett; 12) Arsenic: The Silent Killer, Andrea Foster; 13)Archimedes: Accelerator Reveals Ancient Text, Uwe Bergmann; 14) Neutrinos Get Under Your Skin, Boris Kayser; 15) The Physics of Super Lasers, Dr. Philip Bucksbaum; 16) Smarter Drugs: How Protein Crystallography Revolutionizes Drug Design, Clyde Smith; 17) Profiling the Invisible: Quantum Mechanics and the Unseen Universe, Dr. Michael Peskin; 18) Physical Attraction: The Mysteries of Magnetism, Dr. Joachim Stohr; 19) The Runaway Universe, Dr. Roger Blandford; 20) Metals, Molecules, Life and Death, Dr. Graham George; 21) Our Lopsided Universe: The Matter with Anti-Matter; 22) Synchrotron Radiation: The Light Fantastic, Herman Winick; 23) All About SLAC: What Goes on in the World’s Longest Building, Neil Calder.

    230

    Helicity-correlated systematics for SLAC Experiment E158  

    Microsoft Academic Search

    Experiment E158 at the Stanford Linear Accelerator Center (SLAC) will make the first measurement of parity violation in Moller scattering. The left-right cross-section asymmetry in the elastic scattering of a 45-GeV polarized electron beam with unpolarized electrons in a liquid hydrogen target will be measured to an accuracy of better than 10-8, with the expected Standard Model asymmetry being approximately

    Peter Mastromarino; T. Brian Humensky; Perry Anthony; Carlos Arroyo; Klejda Bega; Axel Brachmann; Gordon Cates; James Clendenin; Franz-Josef Decker; Ted Fieguth; Emlyn Hughes; G. Mark Jones; Yury Kolomensky; Krishna Kumar; David Relyea; S. Rock; O. Saxton; Z. Szalata; J. Turner; M. Woods

    2002-01-01

    231

    The X-band klystron program at SLAC  

    SciTech Connect

    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.

    Caryotakis, G.

    1996-04-01

    232

    Preliminary results of the echo-seeding experiment at SLAC  

    SciTech Connect

    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.

    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

    233

    Latest Results in SLAC 75 MW PPM Klystrons  

    NASA Astrophysics Data System (ADS)

    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.

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

    2006-01-01

    234

    Beam parametr measurements for the SLAC linear collider  

    SciTech Connect

    A stable, closely-controlled, high-intensity, single-bunch beam will be required for the SLAC Linear Collider. The characteristics of short-pulse, low-intensity beams in the SLAC linac have been studied. A new, high-intensity thermionic gun, subharmonic buncher and S-band buncher/accelerator section were installed recently at SLAC. With these components, up to 10/sup 11/ electrons in a single S-band bunch are available for injection into the linac. the first 100-m accelerator sector has been modified to allow control of short-pulse beams by a model-driven computer program. Additional instrumentation, including a computerized energy analyzer and emittance monitor have been added at the end of the 100-m sector. The beam intensity, energy spectrum, emittance, charge distribution and the effect of wake fields in the first accelerator sector have been measured. The new source and beam control system are described and the most recent results of the beam parameter measurements are discussed.

    Clendenin, J.E.; Blocker, C.; Breidenbach, M.

    1981-01-01

    235

    Minority Hypertension Research Development Summer Program Evaluability Assessment.  

    National Technical Information Service (NTIS)

    The Minority Hypertension Research Development Summer Program provides minority institution faculty members and graduate students with the opportunity for research development in the area of hypertension. Awards were made to training centers with well-est...

    1986-01-01

    236

    The Summer Stars Program.  

    ERIC Educational Resources Information Center

    Designing projects around Gardner's multiple intelligences, a Connecticut school created a one-week summer camp where children can tap into their unique strengths. The Summer Stars program allows children ages 7-12 to choose materials and activities from many topics and to participate in one of three internships involving a discovery museum, a…

    Cantrell, Mary Lou; Ebdon, Susan Austin; Firlik, Russell; Johnson, Diane; Rearick, Dianne

    1997-01-01

    237

    Summer Youth Employment Guide.  

    ERIC Educational Resources Information Center

    This 2-part experimental and demonstration project report is based on research and analysis conducted by the Center for Urban Programs at St. Louis University. Part I, which is derived from observations of summer youth employment programs in several cities, describes a general program guide for operating future summer youth employment programs.…

    Manpower Administration (DOL), Washington, DC.

    238

    Under Summer Skies  

    ERIC Educational Resources Information Center

    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…

    Texley, Juliana

    2009-01-01

    239

    Book Your Summer Vacation  

    ERIC Educational Resources Information Center

    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…

    Texley, Juliana

    2012-01-01

    240

    Summer by the Book  

    NSDL National Science Digital Library

    Are you looking for ways to log professional development hours without traveling too far away from home this summer? Through reading, a teacher can spend valuable hours updating content background and methods, or simply refreshing the spirit --at your leisure! This article offers suggestions for summer reading that are sure to catch the interest of any middle school science teacher.

    Texley, Juliana

    2005-07-01

    241

    Celebrate Summer with Reading  

    ERIC Educational Resources Information Center

    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…

    Texley, Juliana

    2007-01-01

    242

    Your Best Summer Ever  

    ERIC Educational Resources Information Center

    "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!

    Cleaver, Samantha

    2012-01-01

    243

    ABC SUMMER PROGRAM, 1967.  

    ERIC Educational Resources Information Center

    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…

    KERR, FRANCES M.; RUSSELL, VALERIE E.

    244

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

    SciTech Connect

    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.

    Woods, Michael; /SLAC

    2009-01-15

    245

    USAF Summer Research Program - 1995 Summer Faculty Research Program Final Reports, Volume 6A, AEDC, FJSRL, WHMC, and ALCs.  

    National Technical Information Service (NTIS)

    The United States Air Force Summer Faculty Research Program (USAF- SFRP) is designed to introduce university, college, and technical institute faculty members to Air Force research. This is accomplished by the faculty members being selected on a nationall...

    G. Moore

    1995-01-01

    246

    SLAC's Channel on YouTube: Science Videos from the SLAC National Accelerator Laboratory  

    DOE Data Explorer

    SLAC's channel on YouTube features a sizeable collection of hour-long public lectures on high-interest science projects and discoveries. The artistic posters announcing each lecture are, themselves, worth the visit. A sampling of titles includes: • Deep Science: Mining for Dark Matter, Sunil Golwala • Particle Accelerator on a Chip, Christopher McGuinness • Life Redefined: Microbes Built with Arsenic, Sam Webb and Felisa Wolfe-Simon • Archaeopteryx: Bringing the Dino-Bird to Life, Uwe Bergmann • Smashing Protons: First Physics at the Large Hadron Collider, David Miller • Leading the Charge: Exotic New Materials for Future Devices, Yulin Chen • Ultimate Atomic Bling: Nanotechnology of Diamonds, Jeremy Dahl • Deep Secrets of the Neutrino: Physics Underground, P.C. Rowson • Molecules in the Spotlight, James Cryan • Zap! The X-Ray Laser is Born, Daniel Ratner • Journey to the Center of the Earth: Exploring High Pressure, Wendy L. Mao • Cosmic Accelerators: Engines of the Extreme Universe, Stefan Funk • Angels and Demons: The Science Behind the Scenes, Norman Graf • Black Holes, the Brightest Objects in the Universe, Jonathan McKinney • Water: The Strangest Liquid, Anders Nilsson • Big Machines and Big Science: 80 Years of Accelerators at Stanford, Gregory Loew • Antimatter: What Is It and Where Did It Go?, Aaron Roodman • How Plants Do It: Light, Oxygen, Action, Vittal Yachandra • The Mysteries of Diamonds: Bizarre History, Amazing Properties, Unique Applications, Harris Kagan • Cosmic Dawn: The First Star in the Universe, Tom Abel • From Atoms to Animals: The Vital Force in Biology, Roger Kornberg • Hunting the Elusive Higgs boson and the Origin of Mass, Lance Dixon • Dark Energy: What the...?, Risa Wechsler • The Dark Side of the Universe, Marusa Bradac • The Large Hadron Collider, Sarah Demers • Robots: Fantasy and Reality • Hydrogen: Fueling the Future, Jennifer Leisch • Making Molecular Movies: 10, 000,000,000,000 Frames per Second • The Violent Universe, Eduardo do Couto e Silva • A Comet on Earth: Results from the Stardust Mission, Sean Brennan • Whispers of the Big Bang, Sarah Church • The Hunt for Hidden Dimensions, JoAnne Hewett • Arsenic: The Silent Killer, Andrea Foster • Archimedes: Accelerator Reveals Ancient Text, Uwe Bergmann • Neutrinos Get Under Your Skin, Boris Kayser • LCLS: Ultrafast Science, Philip H. Bucksbaum • Smarter Drugs: How Protein Crystallography Revolutionizes Drug Design, Clyde Smith • Profiling the Invisible: Quantum Mechanics and the Unseen Universe, Michael Perskin • Physical Attraction: The Mysteries of Magnetism, Joachim Stohr • The Runaway Universe, Roger Blandford • Metals, Molecules, Life and Death, Graham George

    247

    IISME Summer Fellowship Program  

    NASA Technical Reports Server (NTRS)

    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.

    1998-01-01

    248

    Keep Kids Safe This Summer  

    MedlinePLUS

    ... Añadir en... Favorites Delicious Digg Google Bookmarks Keep Kids Safe This Summer Help your kids stay safe and healthy while they enjoy summer ... simple health tips at home and at play. Kids like to dive into summer to relax, unwind, ...

    249

    Summer Success Story.  

    ERIC Educational Resources Information Center

    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)

    Matika, Francis W.

    1994-01-01

    250

    Cashing In on Summer.  

    ERIC Educational Resources Information Center

    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)

    Instructor, 1980

    1980-01-01

    251

    NCI Summer Curriculum in  

    Cancer.gov

    This 4-week summer course provides specialized instruction in the principles and practice of cancer prevention and control. It focuses on concepts, methods, issues, and applications related to this field.

    252

    Under Summer Skies  

    NSDL National Science Digital Library

    Thereâs 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. Thereâs no better place to start your summer reading than under their influence. Here are a few selections identified by NSTA Recommendsâ network of reviewers to help get you started.

    Texley, Juliana

    2009-07-01

    253

    Ocean Engineering Summer Laboratory-Summer 1971.  

    National Technical Information Service (NTIS)

    Massachusetts Institute of Technology and Maine Maritime Academy offered this undergraduate program in 1971. This collection of student reports covers oceanographic instrumentation, buoys, current meters, tide measurement, photographic techniques, water q...

    D. Cummings D. Wyman

    1971-01-01

    254

    New injector (NPI) for nuclear physics at SLAC  

    SciTech Connect

    A program of nuclear physics experiments has been approved at SLAC, and a new high average current injector is being added to the accelerator 650 meters upstream (Sector 25) of the accelerator output. The new injector (NPI) will produce beams in End Station A of up to 150 mA, 1.6 ..mu..sec, 180 pps at energies from 0.5 to 6 GeV. NPI will also have 1 nsec short pulse capability for electron injection into SSRL. Work on NPI started in October of 1983, and the first beam from the new injector is scheduled for the Fall of 1984.

    Koontz, R.F.

    1984-05-01

    255

    Commissioning and operation of the nuclear physics injector at SLAC  

    SciTech Connect

    The new Nuclear Physics Injector (NPI) approved for construction in October of 1983 was completed by September of 1984, and delivered short pulse beams for SPEAR ring checkout in mid-October. Long pulse beams of up to 1.6 microsecond length were also demonstrated. The paper describes the startup operation, reviews the performance characteristics, and discusses the beam transport optics used to deliver 1 to 4 GeV beams to nuclear physics experiments in End Station A. The SLAC Nuclear Physics Injector is in full operationexclamation

    Koontz, R.F.; Iverson, R.; Leyer, G.K.; Miller, R.H.

    1985-10-01

    256

    Laser Development for Future Photocathode Research at SLAC  

    SciTech Connect

    This report summarizes results of recent upgrades to SLAC's polarized source drive laser system. A Q-switching system has been incorporated into the flashlamp-pumped Ti:Sapphire laser system. The Q-switched laser provides energies up to 5 mJ for a 200 ns long pulse. Slow Q-switching provides control over length and shape of the laser pulse. A peak current of > 5.5 A has been demonstrated using a GaAs photocathode illuminated by this laser system.

    Brachmann, A.; Cone, K.; Clendenin, J.E.; Garwin, E.L.; Kirby, R.E.; Luh, D.-A.; Maruyama, T.; Prepost, R.; Prescott, C.Y.; /SLAC

    2005-07-27

    257

    Neutron dosimetry at SLAC: Neutron sources and instrumentation  

    SciTech Connect

    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.

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

    1991-10-01

    258

    Experiments with very-high-power RF pulses at SLAC  

    SciTech Connect

    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.

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

    1983-03-01

    259

    Educational Directory, 1919-20. Bulletin, 1919, No. 71. Part 5: Summer School Directors  

    ERIC Educational Resources Information Center

    The Educational Directory, 1919-20 is divided into seven distinct parts. Part 5, Summer School Directors, covers the following topic areas: (1) Universities, Colleges, and Normal Schools; (2) Secondary Schools (Including Institutions of Higher Rank Not Appearing in Part 1); (3) Summer Normal Training Schools; and (4) Summer Schools for Teachers of…

    Bureau of Education, Department of the Interior, 1920

    1920-01-01

    260

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

    ERIC Educational Resources Information Center

    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

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

    2012-01-01

    261

    Summer faculty fellowship program, 1984  

    NASA Technical Reports Server (NTRS)

    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.

    Spencer, J. H. (compiler)

    1984-01-01

    262

    Evolution of a Pump and Treat Remediation Systems at the SLAC National Accelerator Laboratory, Menlo Park, California.  

    National Technical Information Service (NTIS)

    Pump and treat operations have been conducted over the past ten years at the Former Solvent Underground Storage Tank (FSUST) Area, located at the SLAC National Accelerator Laboratory (SLAC) located in Menlo Park, California. Soil and groundwater at the FS...

    A. Ng C. D. Umezaki D. P. G. Harbaugh M. Moes

    2013-01-01

    263

    Proceedings of the SLAC/KEK linear collider workshop on damping ring.  

    National Technical Information Service (NTIS)

    Since the SLAC/KEK joint meeting was first held at SLAC in March 1987, we have had such a meeting annually with the present one the 6th. This meeting is planned to discuss the damping ring issue in particular. We have ever stressed the importance of study...

    J. Urakawa M. Yoshioka

    1992-01-01

    264

    Promethean Summer: Professional Development Boldly Focuses on the Classics  

    ERIC Educational Resources Information Center

    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…

    Dubin, Jennifer

    2014-01-01

    265

    Searching for light dark matter with the SLAC millicharge experiment.  

    PubMed

    New sub-GeV gauge forces ("dark photons") that kinetically mix with the photon provide a promising scenario for MeV-GeV dark matter and are the subject of a program of searches at fixed-target and collider facilities around the world. In such models, dark photons produced in collisions may decay invisibly into dark-matter states, thereby evading current searches. We reexamine results of the SLAC mQ electron beam dump experiment designed to search for millicharged particles and find that it was strongly sensitive to any secondary beam of dark matter produced by electron-nucleus collisions in the target. The constraints are competitive for dark photon masses in the ~1-30 MeV range, covering part of the parameter space that can reconcile the apparent (g-2)(?) anomaly. Simple adjustments to the original SLAC search for millicharges may extend sensitivity to cover a sizable portion of the remaining (g-2)(?) anomaly-motivated region. The mQ sensitivity is therefore complementary to ongoing searches for visible decays of dark photons. Compared to existing direct-detection searches, mQ sensitivity to electron-dark-matter scattering cross sections is more than an order of magnitude better for a significant range of masses and couplings in simple models. PMID:24329439

    Diamond, M; Schuster, P

    2013-11-27

    266

    Results of the Energy Doubler Experiment at SLAC  

    SciTech Connect

    The costs and the time scales of colliders intended to reach the energy frontier are such that it is important to explore new methods of accelerating particles to high energies. Plasma-based accelerators are particularly attractive because they are capable of producing accelerating fields that are orders of magnitude larger than those used in conventional colliders. In these accelerators a drive beam, either laser or particle, produces a plasma wave (wakefield) that accelerates charged particles. The ultimate utility of plasma accelerators will depend on sustaining ultra-high accelerating fields over a substantial length to achieve a significant energy gain. More than 42 GeV energy gain was achieved in an 85 cm long plasma wakefield accelerator driven by a 42 GeV electron drive beam at the Stanford Linear Accelerator Center (SLAC). Most of the beam electrons lose energy to the plasma wave, but some electrons in the back of the same beam pulse are accelerated with a field of {approx}52 GV/m. This effectively doubles their energy, producing the energy gain of the 3 km long SLAC accelerator in less than a metre for a small fraction of the electrons in the injected bunch.

    Blumenfeld, I.; Decker, F.J.; Hogan, M.J.; Ischebeck, R.; Iverson, R.H.; Kirby, N.A.; Siemann, Robert H.; Walz, D.R.; /SLAC; Clayton, C.E.; Huang, C.; Joshi, C.; Lu, W.; Marsh, K.A.; Mori, W.B.; Zhou, M.; /UCLA; Katsouleas, Thomas C.; Muggli, P.; Oz, E.; /Southern California U.

    2009-06-15

    267

    Stratospheric variability in summer  

    NASA Technical Reports Server (NTRS)

    Rocketsonde observations and infrasound results are used to investigate the variability of the summer stratopause region during one month in summer. Fluctuations of 2-3 days and about 16-day periods are evident, and they appear to be propagating vertically. In this month the 2-3 day oscillations have an amplitude envelope equal in period to the longer period oscillations, implying a connection between the two phenomena. Observations of the diurnal tide and shorter period variability during the month are also presented.

    Rind, D.; Donn, W. L.; Robinson, W.

    1981-01-01

    268

    Shell Creek Summers  

    NSDL National Science Digital Library

    What would motivate high school students to donate valuable summer vacation time to do science research?--the opportunity to make a difference! The Shell Creek Watershed Improvement Group (SCWIG) was formed to identify and promote needed conservation practices within a local watershed, and turned to the high school science department to help educate the public on water quality in the watershed and to establish a monitoring system that would be used to improve surface and groundwater quality. Since 2002, for the past three summers, in this ongoing project, students collect water quality data and report their findings to the three involved community organizations.

    Seier, Mark; Goedeken, Suzy

    2005-04-01

    269

    Nordic Volcanological Institute  

    NSDL National Science Digital Library

    The Nordic Volcanological Institute was created by a group of Nordic scientists who sought to increase earth science knowledge by exploring active volcanism and tectonics of Iceland. Researchers can find lengthy lists of publications and find out about upcoming seminars. Students and teachers can obtain colorful, educational materials on the geology, volcanoes, eruptions, and earthquakes of Iceland. The site presents detailed information on the Institute's facilities, summer school programs, and its research in geochemistry and geophysics. Although the Geodesy link is only in Icelandic, all of the other interesting materials are written in English.

    270

    Books for Summer Reading  

    ERIC Educational Resources Information Center

    In this article, the author, Roger Soder, discusses past books he has read throughout the year on his own and with his book club. He also makes suggestions for summer reading selections. He thanks valued and nearby colleagues and friends for blessing him with books of great wisdom throughout the year.

    Soder, Roger

    2004-01-01

    271

    Summer Reading Loss  

    ERIC Educational Resources Information Center

    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…

    Mraz, Maryann; Rasinski, Timothy V.

    2007-01-01

    272

    Books for Summer Reading.  

    ERIC Educational Resources Information Center

    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)

    [Editors

    2001-01-01

    273

    Stemming Summer Learning Loss  

    ERIC Educational Resources Information Center

    What does it really take to shape a generation of well-rounded young people who will support their families, strengthen their communities, and uphold the values of a civil society? New insights about when and where learning takes place reveal the connection between a child's summer experiences and his or her success in school and beyond. In so…

    Donohue, Nicholas C.; Miller, Beth M.

    2008-01-01

    274

    Books for Summer Reading.  

    ERIC Educational Resources Information Center

    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,"…

    Phi Delta Kappan, 1991

    1991-01-01

    275

    My Summer Vacation  

    ERIC Educational Resources Information Center

    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…

    Galus, Pamela

    2010-01-01

    276

    Use Your Summer Wisely  

    ERIC Educational Resources Information Center

    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…

    Vick, Julie Miller; Furlong, Jennifer S.

    2007-01-01

    277

    A Flying Summer Camp  

    ERIC Educational Resources Information Center

    Describes a five-day summer camp which provided 12 children, ages 9-14, with a complete flying experience. The training consisted of ground school and one hour actual flying time, including the basics of aircraft control and a flight prepared and executed by the students. (MLH)

    Mercurio, Frank X.

    1975-01-01

    278

    2008 AAPM Summer School  

    Cancer.gov

    June 25, 2008 12:00 AM - June 27, 2008 12:00 AM Edwin Hornberger Conference Center Houston, TX + Add to Outlook Calendar The Physics and Applications of PET/CT Imaging Print This Page 2008 AAPM Summer School News & Events

    279

    Mississippi Freedom Summer Project  

    NSDL National Science Digital Library

    The Mississippi Freedom Summer Project website, from Miami University of Ohio, documents the history of 1964's "Freedom Summer", which was when volunteers gathered at the former Western College for Women in order to be trained to register African-American voters in Mississippi. Three volunteers were subsequently murdered in Mississippi, and "these events called attention to racial inequality and served as a catalyst for change." The collection was created by a grant from the Ohio Humanities Council, the Miami University Libraries, and a generous grant from Catherine Ross-Loveland, a 1952 graduate of the Western College for Women. The materials here include over 765 documents related to the Freedom Summer, including reports from the FBI about those involved with the activities around this form of civil rights activism and articles from the Ohio press about the civil rights movement in the South during that time. There are also 27 videos here from conversations and tours held on campus in 2004 to commemorate the 40th anniversary of the Freedom Summer. The videos include walking tours of the Western College for Women and panel discussions about faith and activism. Overall, it's a tremendous collection and one that merits several visits.

    280

    Summer Science Career Camp  

    NSDL National Science Digital Library

    Summer Science Career Camp was a day camp conducted at Brinkley High School. The camp had the following goals: (1) To expose students to job opportunities in science fields. (2) To improve self-esteem of students. (3) To give students achieving below average on standardized tests the opportunity to participate in science activities usually reserved for students in honors or college prep classes.

    Mary K. Meacham (Brinkley High School REV)

    1995-06-30

    281

    Books for Summer Reading.  

    ERIC Educational Resources Information Center

    Recommends many books for summer reading enjoyment, concentrating on historical and contemporary fiction. Different cultures clash in William T. Vollman's "Fathers and Crows" and John Demos's adventuresome "Unredeemed Captive." Other suggestions: "Snow Falling on Cedar Mountain" (David Gutterman) and "Foxfire" (Joyce Carol Oates). For professional…

    Phi Delta Kappan, 1995

    1995-01-01

    282

    My Summer Vacation  

    NSDL National Science Digital Library

    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 p

    Galus, Pamela

    2010-09-01

    283

    Books for Summer Reading.  

    ERIC Educational Resources Information Center

    For educators' summer reading enjoyment, "Kappan" editors recommend three books on nature (Robert Richardson's biography "Emerson: The Mind on Fire, William Cronin's edited book "Uncommon Ground: Rethinking the Human Place in Nature," and Gary Snyder's poetry volume "Mountain and Rivers Without End"). Also recommended are three culturally diverse…

    Phi Delta Kappan, 1997

    1997-01-01

    284

    Active Healthy Summer  

    ERIC Educational Resources Information Center

    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…

    Elliott, Eloise

    2005-01-01

    285

    Summer Fish Camp.  

    ERIC Educational Resources Information Center

    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;…

    Remick, Dennis; Pulu, Tupou L.

    286

    First operation of the upgraded SLAC A-Line  

    SciTech Connect

    The SLAC A-Line has been upgraded to transport electrons to fixed target experiments in End Station A (ESA) with energies up to 50 GeV. From September through November, 1995, this beam line was commissioned and used to deliver 48.36 GeV polarized electrons to Experiment E-154 at 120 pulses/sec and up to 10{sup 11} e{sup {minus}}/pulse. The beam had a full width momentum spread of less than 0.5 percent, and was focused to a small spot ({sigma}=0.7 mm) at the target. In this paper the authors describe the first operational experience with this new beam line.

    Erickson, R.; Anderson, S.; Baker, A. [and others

    1996-10-01

    287

    The ILC Marx Modulator Development Program at SLAC  

    SciTech Connect

    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.

    Leyh, G.E.; /SLAC

    2005-06-07

    288

    Thermal stress analysis of the SLAC fixed mask. Addendum  

    SciTech Connect

    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.

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

    1985-07-25

    289

    Thermal stress analysis of the SLAC moveable mask. Addendum 2  

    SciTech Connect

    X-ray beams emerging from the new SLAC electron-positron storage ring (PEP) can impinge on the walls of tangential divertor channels. A moveable mask made of 6061-T6 aluminum 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 moveable mask operating at a peak temperature of 88/sup 0/C with a peak thermal stress at 19% of the yield of 6061-T6 aluminum.

    Johnson, G.L.

    1985-10-15

    290

    SLAC All Access: Atomic, Molecular and Optical Science Instrument  

    SciTech Connect

    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.

    Bozek, John

    2013-11-05

    291

    The development of the Next Linear Collider at SLAC  

    SciTech Connect

    At SLAC, we are pursuing the design of a Next Linear Collider (NLC) which would begin with a center-of-mass energy of 0.5 TeV and be upgradable to at least 1.0 TeV, and possibly 1.5 TeV. The luminosity is designed to be 10{sup 33} cm{sup {minus}2}s{sup {minus}1} at the lower energy and 10{sup 34} cm{sup {minus}2}s{sup {minus}1} at the top energy. In this paper, we discuss the accelerator physics issues which are important in our approach, and also the present state of the technology development. We also review the impact that the SLC has had in the evolution of our basic approach.

    Ruth, R.D.

    1992-02-01

    292

    Initial Tests with an X-band Photoinjector at SLAC  

    NASA Astrophysics Data System (ADS)

    A compact source of monoenergetic X-rays generated via Compton backscattering is under development at SLAC. It consists of a Photoinjector operating at 11.424 GHz, a stage of post acceleration using a 1.05 m long high gradient accelerator structure and an interaction chamber where a high power (TW), short pulse (sub-ps) infrared laser beam with a high quality focused electron beam are brought into collision. Successful completion of this project will result in the capability of generating a monoenergetic X-ray beam, continuously tunable from 20 - 85 keV. All components have been installed and initial testing has commenced. We are currently generating and accelerating an electron beam up to the accelerator and measuring the essential beam parameters, i.e., quantum efficiency, emittance, energy and stability. The latest test results will be presented together with a description of the beamline components and laser system.

    Vlieks, A. E.; Caryotakis, G.; Destefano, C.; Heritage, J. P.; Landahl, E.; Luhmann, N. C.; Martin, D.; Menegat, A.

    2003-12-01

    293

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

    SciTech Connect

    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.

    Richter, B.

    1989-08-01

    294

    SLAC All Access: Atomic, Molecular and Optical Science Instrument  

    ScienceCinema

    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.

    Bozek, John

    2014-06-03

    295

    SLAC modulator operation and reliability in the SLC Era  

    SciTech Connect

    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.

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

    1992-06-01

    296

    SLAC modulator operation and reliability in the SLC Era  

    SciTech Connect

    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.

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

    1992-06-01

    297

    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

    298

    Summer Harvest in Saratov, Russia  

    NASA Technical Reports Server (NTRS)

    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.

    2002-01-01

    299

    Summer Reading Summer Not: How Project READS Can Advance Equity  

    ERIC Educational Resources Information Center

    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…

    Kim, James S.

    2010-01-01

    300

    The summer of 1974  

    NASA Astrophysics Data System (ADS)

    In the early 1970s, Garrett and Munk summarized oceanographers' knowledge of ocean internal waves in a reference statistical spectrum. Almost at the same time, Hardin and Tappert introduced the parabolic equation into ocean acoustics. In the summer of 1974, Flatté and Tappert [J. Acoust. Soc. Am. 58, 1151-1159 (1975)] helped bring these two ideas together by simulating 100-Hz acoustic propagation through an approximate version of the Garrett-Munk spectrum to a range of 100 km, in order to help understand the effects caused by internal waves on acoustic fluctuations. The history of that summer will be discussed, along with a movie made at that time. The influence of that work on subsequent developments will be discussed.

    Flatté, Stanley M.

    2003-04-01

    301

    Editor's Corner: Summer Magic  

    NSDL National Science Digital Library

    Does the question, "Why do I even bother?" ever occur to you at the end of the school year? If so, you're in good company--the Field Editor asks himself this perennial question every June. He shares his reflections of summer renewal in this month's Editor's Corner, and suggests a good way to help you begin your own renewal process--use summer to catch up on your reading! He presents an overview of feature articles in this month's The Science Teacher (TST) that offer some great ideas for the coming school year, recommends some past issues of TST that you may have only had time to scan during the busy school year, and takes a look ahead at upcoming issues of TST.

    Metz, Steve

    2006-07-01

    302

    Virtual Summer School  

    NSDL National Science Digital Library

    A Virtual Summer School is being run this month by The Human Cognition Research Laboratory at the UK's Open University. The summer school enables students of Cognitive Pscyhology to participate in group discussions and tutorials via Internet Videoconferencing, and to run experiments, conduct literature searches, undertake statistical analyses, and, of course, socialize and chit-chat, all without leaving their homes. The Human Cognition Research Laboratory undertakes a combination of basic and applied research in Artificial Intelligence (AI), Knowledge Engineering, Cognitive Science, and Human Computer Interaction (particularly program visualization). The long-term goal of this research is to understand the fundamental processes of cognition, and to exploit this understanding where appropriate in the design of complex software systems. Also have a look at the experimental Open University Home Page.

    303

    LP Past Summer Student Images  

    Cancer.gov

    D  CCR Home   About CCR   CCR Intranet        Laboratory of Pathology LP Home Clinical Services Basic Sciences Training LP Staff Accessibility of Web Site LP Past Summer Student Images Coming Soon Back to Summer Student Home About CCR | Clinical

    304

    Controls on summer low flow  

    NASA Astrophysics Data System (ADS)

    Summer low flow has significant impacts on aquatic flora and fauna, municipal water use, and power generation. However, the controls on the minimum annual summer discharge are complex, including a combination of snowmelt dynamics, summer evapotranspiration demand, and spring, summer precipitation patterns and surface - groundwater interactions. This is especially true in the Rocky Mountain West of the United States, where snowpack provides the majority of water available for spring runoff and groundwater replenishment. In this study, we look at summer low flow conditions at four snow dominated catchments (26 km2 - 2200 km2) in South-central Idaho currently feeling the effects of climate change. Measures of snowmelt dynamics, summer evapotranspiration demand and spring and summer precipitation are used to determine the dominant controls on late summer low flow magnitude, timing and duration. These analyses show that the controls vary between watersheds, with significant implications for the impacts of climate change in snow dominated areas of the Rocky Mountain West.

    Graham, C. B.; McNamara, J. P.

    2012-12-01

    305

    Goddard Summer Interns: Alejandro Arambula  

    NASA Video Gallery

    Alejandro Arambula is an aerospace engineering student at M.I.T. and a 2011 summer intern in Goddard's Propulsion Lab. This summer he is working with his mentor Khary Parker in building a test asse...

    306

    Summer by the Book  

    NSDL National Science Digital Library

    By June, most teachers are more than ready to leave the classroom routine, but they are seldom able to leave their love of science behind. They travel, explore, and read, so that they can return in the fall better prepared to share science with students. Through reading, a teacher can spend valuable hours updating content background and methods, or simply refreshing the spirit. So, if your summer plans include some stimulating reading, look no further.

    Texley, Juliana

    2004-07-01

    307

    Superfund Progress, Summer 1992  

    SciTech Connect

    The quarterly Superfund Progress report reports on the strides the Superfund program is making towards protecting people and the environment from the hazards of uncontrolled chemical releases. It portrays facets of the program that often go unnoticed or unpublicized, reports new developments, and provides figures to show what the program has accomplished. The Summer 1992 Superfund Progress includes a focus on the Environmental Response Team, the Superfund Accelerated Cleanup Model, and the Superfund Progress Report - Making Polluters Pay for Cleanup.

    Not Available

    1992-09-01

    308

    Development of operator requested control system applications: Experience with the SLC control system at SLAC.  

    National Technical Information Service (NTIS)

    The SLC Control system at SLAC has evolved into a powerful tool for operation of the accelerator and for troubleshooting the unique problems encountered in extracting maximum performance from the SLC. The evolution has included the development of many cus...

    M. Stanek

    1995-01-01

    309

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

    SciTech Connect

    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.

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

    1981-01-01

    310

    Intense Terahertz Pulses from SLAC Electron Beams using Coherent Transition Radiation.  

    National Technical Information Service (NTIS)

    SLAC has two electron accelerators, the Linac Coherent Light Source (LCLS) and the Facility for Advanced Accelerator Experimental Tests (FACET), providing high-charge, high-peak-current, femtosecond electron bunches. These characteristics are ideal for ge...

    A. Lindenberg A. S. Fisher D. Daranciang H. Loos J. Goodfellow M. Fuchs M. Hogan Z. Wu

    2013-01-01

    311

    Exploratorium: Teacher Institute: Podcasts  

    NSDL National Science Digital Library

    Created by science teachers for science teachers, the Teacher Institute Podcasts are five-minute podcasts that give educators science facts, science history, and pedagogy tips for new teachers. The podcasts are hosted by the Exploratorium in San Francisco, and support for the project comes from the National Science Foundation, The Noyce Foundation, the Carnegie Corporation of New York, and others. Visitors can browse through the podcast series, and they will find thoughtful and fun suggestions on how to make a straw oboe, how to better manage the classroom, and how to build a Brazilian instrument called the cuica. Also, visitors can read up on the Teacher's Institute's summer institute program for science educators and also sign up to receive new podcasts via iTunes or RSS.

    312

    76 FR 60508 - National Institute of Mental Health Notice of Closed Meetings  

    Federal Register 2010, 2011, 2012, 2013

    ...of Health National Institute of Mental Health Notice of Closed Meetings Pursuant...Committee: National Institute of Mental Health Special Emphasis Panel; NIH Summer...Activities, National Institute of Mental Health, NIH, Neuroscience...

    2011-09-29

    313

    Setup and Calibration of SLAC's Peripheral Monitoring Stations  

    SciTech Connect

    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.

    Cooper, C.

    2004-09-03

    314

    Radiation safety aspects of the linac coherent light source project at SLAC +  

    Microsoft Academic Search

    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 multi-laboratory collaboration. This facility will provide ultra-short pulses of coherent X-ray radiation with the fundamental harmonic energy tunable over the energy range of 0.82–8.2keV. One-third of the existing SLAC

    S. H. Rokni; A. Fassò; S. Mao; H. Vincke

    2006-01-01

    315

    2003 SOLAS Summer School  

    NASA Technical Reports Server (NTRS)

    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).

    McGillis, Wade R.

    2003-01-01

    316

    Intensity Effects of the FACET Beam in the SLAC Linac  

    SciTech Connect

    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.

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

    2012-07-03

    317

    The 50 GeV program at SLAC  

    SciTech Connect

    SLAC has undertaken a modes programs to upgrade the beam energy for fixed target experiments to 50 GeV. This upgrade is possible due to the previous extensive development work on the linac accelerating gradient for the SLC, which has been operational for over five years. The SLC can deliver a beam of energy up to 60 GeV using a pulse compression technique in the rf system which trades pulse length for a higher pulse amplitude. This mode of operation has been reliable and routine for the SLC. However the beam line transport which takes electrons or positrons from the end of the linac to the target in End Station A has not been upgraded from the original design energy of 25 GeV. The 50 GeV upgrade for the fixed target experiments consists in modifying and increasing the number of beam line dipole magnets to reach 50 GeV, plus modernization of the beam line instrumentation and controls. The plans for spin structure experiments using electron beams at energies up to 50 GeV are described.

    Prescott, C.Y.

    1994-03-01

    318

    Long lepton bunch self-modulation experiment at SLAC  

    NASA Astrophysics Data System (ADS)

    The use of long particle bunches to drive ultra-relativistic, high amplitude plasma waves through the transverse self-modulation instability (SMI) has been recently investigated numerically. This has motivated proton driven plasma wakefield accelerator experiments currently being planned at CERN and Fermilab. We propose to explore the SMI using the 20 GeV, 500 microns long lepton bunches currently available at SLAC FACET. Full-scale PIC simulations show gradients greater than 20 GeV/m and up to 10 GeV energy gain/loss at the 1% level in 1 meter plasmas using electron bunches. Simulations show that the blowout regime is reached at the saturation of the SMI. For the positron driven scenario, the blowout leads to the defocusing of most of the positrons and a gain/loss up to 5 GeV at the 1 % energy level is reached. Simulation results as well as diagnostics to measure the SMI in the planned experiments are discussed.

    Hogan, Mark; Vieira, Jorge; Lopes, Nelson; Fonseca, Ricardo; Reimann, Olaf; Litos, Mike; Li, Selina; Gessner, Spencer; Marsh, Ken; Vafaei, Navid; Joshi, Chan; Mori, Warren; Adli, Erik; Fang, Yun; Silva, Luis; Muggli, Patric

    2012-10-01

    319

    Progress at SLAC on high-power rf pulse compression  

    SciTech Connect

    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.

    Wilson, P.B.; Farkas, Z.D.; Lavine, T.L.; Menegat, A.; Nantista, C.; Ruth, R.D. (Stanford Linear Accelerator Center, Menlo Park, CA (United States)); Kroll, N.M. (Stanford Linear Accelerator Center, Menlo Park, CA (United States) California Univ., San Diego, La Jolla, CA (United States). Dept. of Physics)

    1992-06-01

    320

    Progress at SLAC on high-power rf pulse compression  

    SciTech Connect

    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.

    Wilson, P.B.; Farkas, Z.D.; Lavine, T.L.; Menegat, A.; Nantista, C.; Ruth, R.D. [Stanford Linear Accelerator Center, Menlo Park, CA (United States); Kroll, N.M. [Stanford Linear Accelerator Center, Menlo Park, CA (United States)]|[California Univ., San Diego, La Jolla, CA (United States). Dept. of Physics

    1992-06-01

    321

    The Bill of Rights Institute  

    NSDL National Science Digital Library

    The Bill of Rights Institute is an educational nonprofit organization dedicated to helping high school history teachers enhance their students' understanding of their rights and responsibilities as citizens, as well as providing an awareness of the historical and intellectual origins of the U.S. Constitution and the Bill of Rights. The Institute provides educational resources available for classroom use, including The Bill of Rights and You, a comprehensive curriculum that contains notes and videos. The Institute also conducts regional workshops, offering continuing education credits, and holds summer seminars featuring top educators and scholars.

    2002-01-01

    322

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

    ERIC Educational Resources Information Center

    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…

    Young, Raymond J.; McDougall, William P.

    323

    Problems in School Desegregation: Two Summer Institutes for School Leaders.  

    ERIC Educational Resources Information Center

    The objectives of the program were to assist 24 teams averaging five leaders per team to plan the strategy and procedures of desegregation in their school systems. This was accomplished by being briefed on the provisions of the Civil Rights Bill, by analyzing the problems incident to desegregation in their own school system, and by formulating…

    Myers, Robert B.

    324

    NSF/Tokyo Report: 1998 Summer Institute Program in Japan  

    NSF Publications Database

    ... research environment, intensive Japanese language training, and an introduction to the science and ... who are both familiar with the culture and language of Japan, and the research being conducted in ...

    325

    Plant IT Summer Institute July 9, 2008 Resources  

    NSDL National Science Digital Library

    Pollen collection and identification, genetically engineered crops. Agricultural expert â Miguel Gutierrez Horticulture experts - Don C. Wilkerson and Micah Hale Visualization expert-Larry Griffing SEM

    Ethel Stanley (Beloit College;Biology); Toni Lafferty (C.H. Yoe High School;Science)

    2008-07-09

    326

    Plant IT Summer Institute July 8, 2009 Resources  

    NSDL National Science Digital Library

    Posters offer a way to present questions, data, methods, and conclusions and involve learners in peer review. Case writing should draw on learnerâÂÂs prior experience and generate a need to know. The use of online resources is encouraged.

    Ethel Stanley (Beloit College;Biology)

    2009-07-08

    327

    Plant IT Summer Institute July 7, 2009 Resources  

    NSDL National Science Digital Library

    This session focuses on seed technology, selection and improvement including pelleting. We'll focus on seed germination and collect forensic evidence using seeds and seedlings. Identification and image capture with QX3 are explored. Participants will use the Plant IT blog.

    Ethel Stanley (Beloit College;Biology); Toni Lafferty (C.H. Yoe High School;Science)

    2009-07-07

    328

    PlantIT Summer Institute July 14, 2010 Resources  

    NSDL National Science Digital Library

    Evidence for an investigative case is provided, including fiber analysis images. Participants submit group posters on fiber and sequence analysis. See links to resources for building a case on cotton.

    Ethel D. Stanley (Beloit College;Biology); Toni Lafferty (C. H. Yoe High School;Biology)

    2010-07-14

    329

    NIH Summer Handbook.  

    National Technical Information Service (NTIS)

    This handbook is for those individuals who are new to NIH. It provides information about the Institutes and Centers of the NIH and the activities and contacts useful to persons unfamiliar with the agency. It is an invaluable tool for new students.

    2008-01-01

    330

    Institutional productivities  

    NASA Astrophysics Data System (ADS)

    We considered the 5707 research papers published in the ApJ, AJ, and PASP in 1952, 1962, 1972, 1982, and 1992. For each paper we noted the affiliations and, assuming that each of n authors should get credit for one/n paper for his/her institution, we determined the numbers of papers published by 38 preselected institutions, the remaining other U.S. institutions, and non-U.S. institutions. The ten or 20 most- productive institutions are listed for each year. In many cases the institutions with the largest staffs are at the top of the lists. Then we determined the numbers of AAS members at each institution and computed the mean number of papers per AAS member. We found that pure research organizations have the highest productivity per AAS member and the averages decrease as we progress to institutions whose staff members have many other commitments in addition to research.

    Abt, Helmut A.

    1993-07-01

    331

    Summer Bridge: Preparing Disadvantaged Vocational Students for Success.  

    ERIC Educational Resources Information Center

    Summer Bridge, a 2-week, non-credit program of intensive career exploration and personal development offered to eligible freshmen at Alvin Community College, was instituted to enhance retention rates and achievement levels among high-risk students, particularly during their first semester at the college. The rationale for the program lay in the…

    Parochetti, Jo Ann; And Others

    332

    Evaluation of Michigan Migrant Education, Summer 1971 Programs.  

    ERIC Educational Resources Information 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…

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

    333

    The 1982 NASA/ASEE Summer Faculty Fellowship Program  

    NASA Technical Reports Server (NTRS)

    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.

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

    1982-01-01

    334

    Drexel University - Summer Science Courses  

    NSDL National Science Digital Library

    This website provides information regarding various online remidiation summer courses taught online via Drexel University. These courses include: Medical Gross Anatomy, Medical Embryology, Medical Microanatomy, and Medical Neuroscience.

    Drexel University (Drexel University)

    2012-07-24

    335

    Commissioning a Helium II Test Facility at SLAC  

    SciTech Connect

    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.

    Katz, A.

    2004-09-03

    336

    Silly Dilly Summer. 1990 Iowa Summer Library Program.  

    ERIC Educational Resources Information Center

    This manual presents materials which were designed for use by librarians in planning for and implementing the 1990 Iowa summer library program, "Silly Dilly Summer." The manual includes the program's planning materials (e.g., the resource list and a planning checklist) and publicity materials for promoting the program. The other sections include a…

    Irving, Jan

    337

    Tsunami Summer! 2003 Young Adult Summer Library Program.  

    ERIC Educational Resources Information Center

    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,…

    Alabama Public Library Service, Montgomery.

    338

    [Phenotype analysis and mutant gene location of ventral yellow mouse (VY(Slac))].  

    PubMed

    The ventri-yellow pigmentation mouse (temporarily named VY(Slac)) arose spontaneously in the C57BL/6J inbred mouse strain, found and bred by Shanghai SLAC Laboratory Animal Co., Ltd. VY(Slac) presented a special phenotype marked by yellow coat on the ventral surface of neck and trunk that was without melanin deposition but maintained a normal structure. The number of melanocytes in epidermis and melanin in hair follicle of the abdominal skin of the mutant mouse were less than that of their background strain, while there was no significant difference between the dorsal skins of the two strains. This mutant phenotype was inherited as single-gene dominant inheritance, confirmed by genetic experiment, and there was no significant difference between VY(Slac) and B(6) for other biological parameters such as weight, anatomic and histological structures of major organs and blood physiology. When the linkage relationship between the genomic DNA samples of F(2) 48 mice (VY(Slac)D(2)F(1)×D(2)) and mutant phenotype were evaluated, the mutant gene was confirmed on chromosome 2 near D2Mit229. New microsatellite and SNP markers were selected to amplify genomic DNA samples of 196 F(2) mice and the mutant gene was narrowed down to 5.3 Mb region between rs13476833 and rs27310903 on chromosome 2. The preliminary results of our phenotype analysis and gene location provides a solid basis for further identification of this mutant gene. PMID:22653857

    Shi, Mei-Lian; Xu, Ping; Yin, Xiao-Shu; Yang, Wei-Wei; Gu, Mei-Er; Yu, Li-Ping; Liu, Gui-Jie; Wu, Bao-Jin

    2012-06-01

    339

    United States Air Force Summer Faculty Research Program (1986). Program Technical Report. Volume 3.  

    National Technical Information Service (NTIS)

    The United States Air Force Summer Faculty Research Program (USAF-SFRP) is a program designed to introduce university, college, and technical institute faculty members to Air Force research. This three volume document is a compilation of the final reports...

    R. C. Darrah R. Kopka S. K. Espy

    1986-01-01

    340

    The gauge hierarchy problem, technicolor, supersymmetry, and all that  

    Microsoft Academic Search

    Not Available Note from the Editor: Dr. Susskind's contribution to the Solvay Conference covered material which he had already presented to a large extent at the SLAC Summer Institute. Whilst he did not deem it appropriate to write a new text, we are happy, for the sake of completeness, to reproduce here his written contribution to the SLAC Summer Institute.

    Leonard Susskind

    1984-01-01

    341

    Stop the Summer Reading Slide  

    ERIC Educational Resources Information Center

    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…

    Lundstrom, Meg

    2005-01-01

    342

    Summer Fun in the Sun  

    Microsoft Academic Search

    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

    D. Alexander; D. Noldon

    2002-01-01

    343

    Families, Schools, and Summer Learning  

    ERIC Educational Resources Information Center

    In this study we used spring-to-fall reading achievement data to measure summer gains and losses for a sample of over 300 early elementary school students from high-poverty schools. We combined evidence from a randomized experiment of an academically intensive community-based summer school program with parent telephone survey data regarding the…

    Borman, Geoffrey D.; Benson, James; Overman, Laura T.

    2005-01-01

    344

    Evaluation of Summer Bridge Programs  

    ERIC Educational Resources Information Center

    Many colleges and universities in the United States offer summer programs for their incoming students. While programs are structured and administered in a variety of ways and target various student populations, the most common type of summer bridge program aims to serve historically underrepresented students and students of low socioeconomic…

    Garcia, Lisa D.; Paz, Chiara C.

    2009-01-01

    345

    Special Handbook: The Summer Scholar  

    ERIC Educational Resources Information Center

    No longer is summer ushered in with that old "no more lessons, no more books" refrain. There are plenty of vacation learning opportunities--in and around New York, at college campuses, and even abroad--for all age groups. Here is a roundup of this summer's offerings. (Editor)

    Thaler, Pat Koch; Shapiro, Sonya

    1978-01-01

    346

    Quality of Summer Teachers Examined  

    ERIC Educational Resources Information Center

    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…

    Sawchuk, Stephen

    2011-01-01

    347

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

    SciTech Connect

    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.

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

    2012-06-06

    348

    SLAC R and D toward a TeV Linear Collider  

    SciTech Connect

    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.

    Wilson, P.B.

    1988-10-01

    349

    Essay: Bob Siemann-SLC Days at SLAC  

    SciTech Connect

    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

    Raubenheimer, Tor O.; /SLAC

    2011-11-14

    350

    Solstice, Science, and Summer Reading  

    NSDL National Science Digital Library

    Like generations before them, teachers often use the energy of the summer Sun to nurture seeds of growth (both real and virtual) for another year. Whether you believe the ancient legends or not, summer provides catch-up time. You can turn off your alarm and let the magic of your biorhythms take over. As they have in past years, the reviewers of NSTA Recommends have prepared some suggestions for summer reading. Some of their suggestions are scientific, some motivational, some practical�and some just plain fun. So where ever your comfort zone is, pull up a chair because it's time to read.

    Texley, Juliana

    2007-07-01

    351

    THE 1965 INSTITUTES IN ENGLISH, REPORT OF A PILOT STUDY TO DEVELOP CRITERIA FOR EVALUATING NDEA INSTITUTES IN ENGLISH.  

    ERIC Educational Resources Information Center

    THE DUAL PURPOSES OF THIS 1965 PILOT STUDY OF THE 103 NATIONAL DEFENSE EDUCATION ACT SUMMER INSTITUTES IN ENGLISH WERE TO DRAW CONCLUSIONS ABOUT HOW A STUDY OF INSTITUTES COULD BEST BE CONDUCTED AND WHAT OUGHT TO BE THE PURPOSES OF SUCH A STUDY, AND TO REPORT ON WHAT THE INSTITUTES ACCOMPLISHED, TENTATIVELY EVALUATING THEIR EFFECTIVENESS. THE…

    GRAY, DONALD, J.

    352

    Ocean Institute  

    NSDL National Science Digital Library

    Site contains information on programs available for every grade, news, schedules and membership information. Detailed syllabus and lesson plans for each activity are provided. Activities include field trips, research vessels voyages, summer camps, and visits to the center. A list of commercial, governmental and professional partners is included. The vision is to provide hands-on experience in marine science, environmental education and maritime history. Located in Dana Point, California.

    353

    The Summer of Hydrogen  

    NASA Technical Reports Server (NTRS)

    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.

    Weber, Philip

    2008-01-01

    354

    Emphasizing Attendance in Summer School.  

    ERIC Educational Resources Information Center

    A six-week remedial summer school program for potential dropouts in a Wisconsin high school is described. The key factor was an attendance clause that limited students to three absences lest they be withdrawn from the program. (TE)

    Roherty, Mark T.; Gruber, James L.

    1986-01-01

    355

    NCI at Frederick: Summer Students  

    Cancer.gov

    The 2013 Summer Handbook is available online. You can use it to find descriptions of career and professional development programs, information on safety training at the NIH and commuting options, and suggestions for museums to visit in your spare time.

    356

    Current Research: Summer Reading Suggestions  

    NSDL National Science Digital Library

    To supplement your summer reading, NSTA's affiliates would like to suggest some recent articles on education research. These articles cover a variety of topics that include diversity, technology, and science teacher retention. The abstracts of these impor

    2009-07-01

    357

    Goddard Summer Interns: Danielle Wood  

    NASA Video Gallery

    Profile of Goddard intern Danielle Wood. Danielle is interning at Goddard in the Innovative Partnerships Program and at NASA Headquarters in the Office of the Chief Technologist in the summer of 20...

    358

    Overcome Inertia through Summer Reading  

    NSDL National Science Digital Library

    Resistance or disinclination to motion is common in middle school teachers over the summer months, especially in those who find themselves at rest in a beach chair. But while your body is at rest, there are plenty of ways to energize your mind--reading is the ideal way to replace summer inertia with professional momentum! For that reason, the NSTA Recommends team has once again come with the following suggestions for your reading enjoyment.

    Texley, Juliana

    2006-07-01

    359

    The Summer Robotic Autonomy Course  

    NASA Technical Reports Server (NTRS)

    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.

    Nourbakhsh, Illah R.

    2002-01-01

    360

    Phenomenology Institute  

    NSDL National Science Digital Library

    The Phenomenology Institute at the University of Wisconsin-Madison pursues "a broad range of research in particle physics theory and phenomenology." At this website, users can view concise summaries of its many focuses including in neutrino physics, string theory and extra dimensions, and electroweak physics. Visitors can find links to the homepages of many of the researchers involved with the Institute. The website features the upcoming and past events held by the Institute such as the Pheno Symposiums. Individuals can examine abstracts and compressed postscripts of the phenomenology preprints since 1994 as well as articles about the newest issues in phenomenology written for the popular press.

    361

    Urban Institute  

    NSDL National Science Digital Library

    The Urban Institute is a Washington DC-based, nonprofit organization devoted to economic and social policy research. Its Website holds a wealth of information featuring in-depth reports on social and economic issues facing the US and abroad. These reports are updated frequently and focus on such issues as American health care reform, child support, and social security. The Research section contains a huge database of Urban Institute reports and can be searched by topic, author, and date. The site also links to Urban Institute special programs including the National Center for Charitable Statistics and The Retirement Project.

    362

    BABAR - the detector for the PEP II B Factory at SLAC  

    SciTech Connect

    BABAR refers to the detector that is being designed for the PEP II B-Factory at SLAC to perform a comprehensive study of CP violation in B meson decays. The design requirements and the principal detector components are briefly described. A summary of the expected physics performance is presented.

    Lueth, V.; BABAR Collaboration

    1994-09-01

    363

    SLAC-PUB-8779: Observational Evidence for Two Cosmological Predictions Made by Bit-String Physics  

    NSDL National Science Digital Library

    This pre-print from the Stanford Linear Accelerator Center (SLAC) covers string theory and dark matter, in particular the baryon/ photon ratio at the time of nucleogenesis. The theories presented are not in disagreement with actual cosmological data, including that from BOOMERANG. This pre-print may be downloaded for free in .pdf or .ps format.

    Noyes, H. P.

    2001-01-01

    364

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

    SciTech Connect

    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.

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

    2012-07-05

    365

    Structure Loaded Vacuum Laser-Driven Particle Acceleration Experiments at SLAC  

    SciTech Connect

    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.

    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

    366

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

    SciTech Connect

    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.

    Rosenzweig, J. B.; Andonian, G.; Niknejadi, P.; Travish, G.; Williams, O.; Xuan, K. [UCLA Dept. of Physics and Astronomy, 405 Hilgard Ave. Los Angeles, CA, 90095 (United States); Muggli, P. [University of Southern California, Los Angeles, CA, 90089 (United States); Yakimenko, V. [Brookhaven National Laboratory, Upton, NY, 11973 (United States)

    2010-11-04

    367

    Anomalous Electron Loading in SLAC 5045 Klystron and Relativistic Klystron Input Cavities.  

    National Technical Information Service (NTIS)

    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 dr...

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

    1989-01-01

    368

    Advocacy for the Archives and History Office of the SLAC National Accelerator Laboratory: Stages and Methods  

    Microsoft Academic Search

    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

    Jean Marie Deken

    2009-01-01

    369

    Design optimization for an X-ray free electron laser driven by SLAC linac  

    Microsoft Academic Search

    I present a design study for an X-ray Free Electron Laser (FEL) driven by the SLAC linac. The study assumes the FEL is based on Self-Amplified Spontaneous Emission (SASE) and lasing is achieved in a single pass of a high current, high brightness electron beam through a long wiggler. Following a brief review of the fundamentals of SASE, I provide

    Ming Xie

    1995-01-01

    370

    Recent Measurements and Plans for the SLAC Compton X-Ray Source.  

    National Technical Information Service (NTIS)

    A compact source of monoenergetic X-rays, generated via Compton backscattering, has been developed in a collaboration between U.C Davis and SLAC. The source consists of a 5.5 cell X-band photoinjector, a l.05 m long high gradient accelerator structure and...

    A. E. Vlieks R. Akre G. Caryotakis C. DeStefano W. J. Frederick

    2005-01-01

    371

    SLAC (Stanford Linear Accelerator Center) Linac as Used in the SLC Collider.  

    National Technical Information Service (NTIS)

    The linac of the SLAC Linear Collider (SLC) must accelerate three high intensity bunches on each linac pulse from 1.2 GeV to 50 GeV with minimal increase of the small transverse emittance. The procedures and adjustments used to obtain this goal are outlin...

    J. T. Seeman G. Abrams C. Adolphsen W. Atwood K. L. F. Bane

    1989-01-01

    372

    Beam Test Proposal of an ODR Beam Size Monitor at SLAC FFTB.  

    National Technical Information Service (NTIS)

    ODR (Optical Diffraction Radiation) transverse beam size measurement at the SLAC FFTB at 28.5 GeV is a challenge and it requires special target and optics system, which is much difficult than the conventional ODR beam size measurement. We propose to use a...

    Y. Fukui D. Cline J. Urakawa M. Ross A. Potylitsyn

    2005-01-01

    373

    Femtosecond Width X-ray Generation with the SLAC Linac and the FFTB Beamline.  

    National Technical Information Service (NTIS)

    We describe a new Sub-Picosecond Photon Source (SPPS) based on proposal to generate 30 GeV bunches as short as 30 fs rms with the SLAC linac. The bunch is compressed in three stages, starting with the existing ring-to-linac compressor. A second stage of c...

    P. Krejcik J. Arthur R. Carr M. Cornacchia P. Emma

    2001-01-01

    374

    Summer Final Report  

    NASA Technical Reports Server (NTRS)

    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.

    Makidi, Nitou

    2012-01-01

    375

    Burn Institute  

    MedlinePLUS

    ... do each year – a burn injury. Learn more Fire and Burn Prevention Each year, the Burn Institute ... thousands of children and adults each year through fire and burn prevention education, burn survivor support programs ...

    376

    Molecular Evolution of Slow and Quick Anion Channels (SLACs and QUACs/ALMTs)  

    PubMed Central

    Electrophysiological analyses conducted about 25?years ago detected two types of anion channels in the plasma membrane of guard cells. One type of channel responds slowly to changes in membrane voltage while the other responds quickly. Consequently, they were named SLAC, for SLow Anion Channel, and QUAC, for QUick Anion Channel. Recently, genes SLAC1 and QUAC1/ALMT12, underlying the two different anion current components, could be identified in the model plant Arabidopsis thaliana. Expression of the gene products in Xenopus oocytes confirmed the quick and slow current kinetics. In this study we provide an overview on our current knowledge on slow and quick anion channels in plants and analyze the molecular evolution of ALMT/QUAC-like and SLAC-like channels. We discovered fingerprints that allow screening databases for these channel types and were able to identify 192 (177 non-redundant) SLAC-like and 422 (402 non-redundant) ALMT/QUAC-like proteins in the fully sequenced genomes of 32 plant species. Phylogenetic analyses provided new insights into the molecular evolution of these channel types. We also combined sequence alignment and clustering with predictions of protein features, leading to the identification of known conserved phosphorylation sites in SLAC1-like channels along with potential sites that have not been yet experimentally confirmed. Using a similar strategy to analyze the hydropathicity of ALMT/QUAC-like channels, we propose a modified topology with additional transmembrane regions that integrates structure and function of these membrane proteins. Our results suggest that cross-referencing phylogenetic analyses with position-specific protein properties and functional data could be a very powerful tool for genome research approaches in general.

    Dreyer, Ingo; Gomez-Porras, Judith Lucia; Riano-Pachon, Diego Mauricio; Hedrich, Rainer; Geiger, Dietmar

    2012-01-01

    377

    Los Alamos Space Weather Summer School  

    NASA Astrophysics Data System (ADS)

    Los Alamos National Lab recently initiated a new summer school specializing on space science, space weather, and instrumentation. The school is geared towards graduate level students and has been established to bring graduate students together with internationally recognized scientists at the Los Alamos National Lab. Students are receiving a prestigious Vela Fellowship to cover relocation expenses and cost of living for the duration of their stay in Los Alamos. For two months students have the opportunity to attend science lectures given by distinguished researchers at LANL. Topics are related to space weather research including plasma physics, radiation belts, numerical modeling, solar wind physics, spacecraft charging, and instrumentation. Students are also working closely with a Los Alamos mentor on exciting space weather science topics with access to Los Alamos GPS and geosynchronous data. The summer school concludes with project presentations by the students in a technical forum. The program is designed for graduate students currently enrolled at US Universities and open to all nationalities. We are presenting an overview of this exciting new program funded by IGPP (Institute of Geophysics and Planetary Physics), the Global Security Directorate, and the Directorate for Science, Technology and Engineering at Los Alamos National Lab.

    Koller, J.

    2011-12-01

    378

    NASA/ASEE Summer Faculty Fellowship Program  

    SciTech Connect

    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.

    Hosler, E.R.; Valdes, C.; Brown, T.

    1993-10-01

    379

    NASA/ASEE Summer Faculty Fellowship Program  

    NASA Technical Reports Server (NTRS)

    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.

    Hosler, E. Ramon (editor); Valdes, Carol (editor); Brown, Tom (editor)

    1993-01-01

    380

    Results from HAPPEX and Future Plans at Jlab and SLAC  

    NASA Astrophysics Data System (ADS)

    We present updated results from the HAPPEX experiment at Jefferson Laboratory. The parity violating left-right asymmetry was measured in the elastic scattering of 3.3 GeV/c^2 longitudinally polarized electrons off protons in a liquid hydrogen target at a scattering angle ?_lab 12.5^o (Q^2 0.5 (GeV/c)^2). The new results are obtained from a run in summer '99 in which a high polarization ( 70%) strained GaAs photocathode was used successfully for the first time in a parity violating electron scattering experiment. The physics asymmetry of roughly 15 parts per million (ppm) was measured with an accuracy approaching 1 ppm. The experimental techniques used to control potential systematic errors will be described in detail. The measurement bodes well for future parity violating asymmetry measurements that are planned at Jefferson Laboratory and the Stanford Linear Accelerator Center. The motivations for these experiments in construction and their current status will be discussed.

    Kumar, Krishna

    2000-04-01

    381

    How To?Make Summer (Learning) Fun  

    ERIC Educational Resources Information Center

    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…

    Lindroth, Linda

    2005-01-01

    382

    Development of Cellulosic Biofuels (LBNL Summer Lecture Series)  

    ScienceCinema

    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.

    Somerville, Chris (Director, Energy Biosciences Institute)

    2011-04-28

    383

    Development of Cellulosic Biofuels (LBNL Summer Lecture Series)  

    SciTech Connect

    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.

    Somerville, Chris (Director, Energy Biosciences Institute) [Director, Energy Biosciences Institute

    2007-06-20

    384

    Earth Institute  

    NSDL National Science Digital Library

    The mission of the Earth Institute at Columbia University is to help the world achieve sustainability by expanding understanding of the Earth as one integrated system. Through research, education, and the practical application of research to real-world challenges, the Institute addresses nine interconnected global issues: climate and society, water, energy, poverty, ecosystems, public health, food and nutrition, and hazards and urbanization. The Institute's site offers a collection of videotaped events, including the biannual "State of the Planet" conferences, 2002-08, a Distinguished Lecture series, and the Sustainable Development seminar series, as well as e-seminars and e-briefings, information about funding opportunities, and information about educational opportunities at Columbia.

    385

    Summer Fun in the Sun  

    NASA Astrophysics Data System (ADS)

    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.

    Alexander, D.; Noldon, D.

    2002-05-01

    386

    Cato Institute  

    NSDL National Science Digital Library

    The Cato Institute is a think tank based on "limited government, free markets, individual liberty, and peace." It's Web site is highlighted by the full text of many of its Briefing Papers, all of its Foreign Policy Briefing Series, over 100 of its Policy Analysis Series, all of its Social Security Privatization Series, and articles from its semi-monthly Cato Policy Reports (under Publications and Broadcasts). In addition, the site offers information about the Institute, its staff, its events, and its other publications.

    1999-01-01

    387

    Summer School and Summer Learning, 2002: Progress and Challenges.  

    ERIC Educational Resources Information Center

    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

    Denton, David R.

    388

    Institutional Transformation.  

    ERIC Educational Resources Information Center

    Although incivility and conflict have long plagued community colleges and other educational institutions, recent budget declines have made this situation more critical. In the past, those who disagreed could be bought off and organizations tended to hire layers of people to perform tasks that one person with a personal computer can perform today.…

    Harris, Zelema M.

    389

    Undignifying institutions  

    PubMed Central

    Declarations of the importance of dignity in health care are commonplace in codes of practice and other mission statements, yet these documents never clarify dignity's meaning. Their vague aspirations are compared to comments from staff and patients about opportunities for and barriers against the promotion of dignity in elderly care institutions. These suggest that while nurses and health care assistants have an intuitive understanding of dignity, they either do not or cannot always bring it about in practice. Thus, despite stated intentions to promote dignity, it appears that the circumstances of at least some elderly care institutions cause patients to experience avoidable indignities. Such institutions are "undignifying institutions" because they fail to acknowledge dignity's basic components, focus excessively on quantifiable priorities, and have insufficient resources available to assure consistently dignifying care. As a partial solution, we argue that health workers should be taught to understand and specify the components of dignity, which will better prepare them to challenge undignifying practices and to recognise opportunities for dignity promotion.

    Seedhouse, D; Gallagher, A

    2002-01-01

    390

    Institution Morphisms  

    NASA Technical Reports Server (NTRS)

    Institutions formalize the intuitive notion of logical system, including both syntax and semantics. A surprising number of different notions of morphisim have been suggested for forming categories with institutions as objects, and a surprising variety of names have been proposed for them. One goal of this paper is to suggest a terminology that is both uniform and informative to replace the current rather chaotic nomenclature. Another goal is to investigate the properties and interrelations of these notions. Following brief expositions of indexed categories, twisted relations, and Kan extensions, we demonstrate and then exploit the duality between institution morphisms in the original sense of Goguen and Burstall, and the 'plain maps' of Meseguer, obtaining simple uniform proofs of completeness and cocompleteness for both resulting categories; because of this duality, we prefer the name 'comorphism' over 'plain map.' We next consider 'theoroidal' morphisms and comorphisims, which generalize signatures to theories, finding that the 'maps' of Meseguer are theoroidal comorphisms, while theoroidal morphisms are a new concept. We then introduce 'forward' and 'semi-natural' morphisms, and appendices discuss institutions for hidden algebra, universal algebra, partial equational logic, and a variant of order sorted algebra supporting partiality.

    Goguen, Joseph; Rosu, Grigore; Norvig, Peter (Technical Monitor)

    2001-01-01

    391

    Beam-Beam Deflection as a Beam Tuning Tool at the SLAC (Stanford Linear Accelerator Center) Linear Collider.  

    National Technical Information Service (NTIS)

    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 deflecti...

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

    1989-01-01

    392

    PD Pathways: Attending a Science Institute  

    NSDL National Science Digital Library

    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

    Konitzer, Andrea; Marcou, Darcy; Lange, Melissa; Ashmann, Scott

    2010-12-01

    393

    Kick Off Summer With Reading  

    NSDL National Science Digital Library

    For the first few weeks of summer break, most teachers appreciate nothing more than a comfortable lounge chair on a breezy veranda. Fortunately, that is the ideal position from which to begin a personal program of rich professional development (PD)--by exp

    Texley, Juliana

    2010-07-01

    394

    1984 Summer Instructional Television Evaluation.  

    ERIC Educational Resources Information Center

    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…

    Hayes, LaMarian

    395

    Boost Reading Skills by Summer  

    ERIC Educational Resources Information Center

    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.

    Fink, Jennifer L. W.

    2012-01-01

    396

    Summer Reading Goes High Tech  

    ERIC Educational Resources Information Center

    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…

    Fink, Jennifer L. W.

    2012-01-01

    397

    Design Optimization for an X-Ray Free Electron Laser Driven by SLAC Linac  

    SciTech Connect

    I present a design study for an X-ray Free Electron Laser (FEL) driven by the SLAC linac. The study assumes the FEL is based on Self-Amplified Spontaneous Emission (SASE) and lasing is achieved in a single pass of a high current, high brightness electron beam through a long wiggler. Following a brief review of the fundamentals of SASE, I will provide without derivation a collection of formulas relating SASE performance to the system parameters. These formulas allow quick evaluation of FEL designs and provide powerful tools for optimization in multidimensional parameter space. Optimization is carried out for the SLAC FEL over all independent system parameters modeled, subjected to a number of practical constraints.

    Xie, Ming

    1994-12-01

    398

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

    PubMed

    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

    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

    399

    A 2--4 nm Linac Coherent Light Source (LCLS) using the SLAC linac  

    SciTech Connect

    We describe the use of the SLAC linac to drive a unique, powerful. short wavelength Linac Coherent Light Source (LCLS). Operating as an FEL, lasing would be achieved in a single pass of a high peak current electron beam through a long undulator by self-amplified spontaneous emission (SASE). The main components are a high-brightness rf photocathode electron gun; pulse compressors; about 1/5 of the SLAC linac; and a long undulator with a FODO quadrupole focussing system. Using electrons below 8 GeV, the system would operate at wavelengths down to about 3 nm, producing {ge}10 GW peak power in sub-ps pulses. At a 120 Hz rate the average power is {approx} 1 W.

    Winick, H.; Bane, K.; Boyce, R. [and others

    1993-05-01

    400

    [Functional results after proximal row carpectomy (PRC) in patients with SNAC-/SLAC-wrist stage II].  

    PubMed

    The proximal row carpectomy (PRC) is a motion preserving procedure which creates a new joint without arthrosis. It is a frequently used procedure in stage II of a posttraumatic degenerative arthrosis of the wrist after scaphoid nonunion or scapholunate ligament instability (SNAC-/SLAC-wrist). In this retrospective analysis the functional postoperative results of this operation are compared in light of a homogenous indication (SNAC-/SLAC-wrist stage II). In 38 patients PRC was performed for a stage II SNAC- (n = 29) or SLAC-wrist (n = 9) between June 1994 and March 2002. Postoperative examination included range of motion and grip strength. Pain was assessed using a visual analogue scale (VAS 0 - 100). The DASH questionnaire (disability of the arm, shoulder and hand) was used to evaluate the disabilities in activities of daily living (ADL). Thirty patients (79 %) with a mean age of 39 years (23 - 59) were evaluated with a mean follow-up of 27 months (6 - 100). Mean extension and flexion of the wrist reached 75 degree which was 57 % of the contralateral hand. Mean radial and ulnar deviation was 33 degree corresponding with 52 % of the contralateral hand. The average grip strength was 50 % of the unaffected side. The postoperative DASH score was 27.4. Pain with strenuous activity was reduced by 40 %, resting pain by 77 %. Three patients showed radiological signs of a radiocapitate arthrosis, one patient needed conversion into a complete wrist arthrodesis. Our results are in concordance with the literature. However, our follow-up time is relatively short and we cannot make any conclusion about the long-term outcome. PRC is a technically straightforward procedure for treatment of carpal collapse. For stage II of the SNAC-/SLAC-wrist we consider the resection of the proximal carpal row an alternative procedure to the midcarpal arthrodesis particularly in patients who require less grip strength and when a shorter postoperative immobilization is reasonable. PMID:15877271

    Baumeister, S; Germann, G; Dragu, A; Tränkle, M; Sauerbier, M

    2005-04-01

    401

    IMPROVEMENTS FOR THE THIRD GENERATION PLASMA WAKEFIELD EXPERIMENT E-164 AT SLAC  

    Microsoft Academic Search

    The E-164 experiment at the Stanford Linear Accelerator Center is the third in a series investigating Plasma Wakefield Acceleration where the wake is driven by electron bunches. A collaboration between SLAC, UCLA and USC, E-164 has up to 2 x 10¹° electrons at 28.5 GeV in 100 micron long bunches. These bunches enter a 30cm long Lithium plasma with density

    2004-01-01

    402

    Radiation safety analysis for the experimental hutches at the Linac coherent light source at SLAC  

    Microsoft Academic Search

    The Linac Coherent Light Source (LCLS), the world's first X-ray free electron laser, will be constructed at the Stanford Linear Accelerator Center (SLAC) and is expected to be completed in 2009. A two-mirror system will be used in order to reduce background radiation in near and far experimental hutches. This paper describes the layout of the two-mirror system and also

    X. S. Mao; S. H. Rokni; H. Vinckea

    2006-01-01

    403

    Radiation Safety Aspects of the Linac Coherent Light Source Project At SLAC  

    Microsoft Academic Search

    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

    S. H. Rokni; A. Fasso; S. Mao; H. Vincke

    2005-01-01

    404

    Availability Performance and Considerations for LCLS X-Ray FEL at SLAC  

    Microsoft Academic Search

    The Linac Coherent Light Source (LCLS) is an X-ray Free Electron Laser (FEL) facility located at the SLAC National Accelerator Laboratory. LCLS has been in operation since spring 2009, and it has completed its 3rd user run. LCLS is the first in its class of X-ray FEL user facilities, and presents different availability challenges compared to storage ring light sources.

    2011-01-01

    405

    Design optimization for an X-ray free electron laser driven by SLAC LINAC  

    Microsoft Academic Search

    I present a design study for an X-ray Free Electron Laser (FEL)driven by the SLAC linac. The study assumes the FEL is basedon Self-Amplified Spontaneous Emission (SASE) and lasing isachieved in a single pass of a high current, high brightness electronbeam through a long wiggler. Following a brief review ofthe fundamentals of SASE, I will provide without derivation acollection of

    Ming Xie; Lawrence Berkeley

    1996-01-01

    406

    LUCIFER status report, summer 2004  

    Microsoft Academic Search

    LUCIFER (LBT NIR Spectrograph Utility with Camera and Integral-Field Unit for Extragalactic Research) is a NIR spectrograph and imager for the LBT (Large Binocular Telescope) working in the wavelength range from 0.9 to 2.5 microns. The instrument is to be built by a consortium of five german institutes (Landessternwarte Heidelberg (LSW), Max Planck Institut for Astronomy (MPIA), Max Planck Institut

    Holger Mandel; Immo Appenzeller; Walter Seifert; Harald Baumeister; Peter Bizenberger; Ralf-Juergen Dettmar; Hans Gemperlein; Bernhard Grimm; Tom M. Herbst; Reiner Hofmann; Marcus Jutte; Werner Laun; Michael Lehmitz; Sebastiano Ligori; Rainer Lenzen; Kai Polsterer; Ralf-Rainer Rohloff; Andreas Schuetze; Andreas Seltmann; Peter Weiser; Harald Weisz; Wenli Xu

    2004-01-01

    407

    LUCIFER status report: Summer 2006  

    Microsoft Academic Search

    LUCIFER (LBT NIR Spectrograph Utility with Camera and Integral-Field Unit for Extragalactic Research) is a NIR spectrograph and imager for the LBT (Large Binocular Telescope) working in the wavelength range from 0.9 to 2.5 microns. Two instruments are built by a consortium of five German institutes (Landessternwarte Heidelberg (LSW), Max Planck Institut for Astronomy (MPIA), Max Planck Institut for Extraterrestric

    H. G. Mandel; I. Appenzeller; W. Seifert; H. Baumeister; R.-J. Dettmar; C. Feiz; H. Gemperlein; A. Germeroth; B. Grimm; J. Heidt; T. Herbst; R. Hofmann; M. Jütte; V. Knierim; W. Laun; T. Luks; M. Lehmitz; R. Lenzen; K. Polsterer; A. Quirrenbach; R.-R. Rohloff; J. Rosenberger; P. Weiser; H. Weisz

    2006-01-01

    408

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

    PubMed

    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

    Chan, Ivy; Liu, James; Tran, Henry

    2013-08-01

    409

    The status of the SLAC Linear Collider and of the Mark II detector  

    SciTech Connect

    At SLAC we are currently involved in the exciting challenge of commissioning the first example of a new type of colliding beam accelerator, the SLAC Linear Collider, or SLC. The goals of the SLC are two-fold. It will explore the concept of linear colliders, and it will allow the study of physics on the Z/sup 0/ resonance. It accomplishes these goals by exploiting the existing SLAC linac and the large visible cross-section of approximately thirty nanobarns of the Z/sup 0/. The MARK II detector will have the opportunity to be first to explore the physics in this regime. This paper briefly reports the status of the SLC and of the MARK II as of early October 1987, at which time commissioning efforts were interrupted in order to place the MARK II detector at the collision point and to incorporate some improvements to the SLC. The first portion of this report highlights some of the milestones achieved in the SLC commissioning and some of the problems encountered. The last portion outlines improvements made to the MARK II for physics at the SLC. 10 refs., 12 figs., 1 tab.

    Lankford, A.J.

    1987-10-01

    410

    Nuclear Concepts & Technological Issues Institute: Teacher Activity Booklet.  

    ERIC Educational Resources Information Center

    For many summers the Radiation Science and Engineering Center at Pennsylvania State University has been the site of a Nuclear Concepts and Technological Issues Institute for secondary school science teachers. As a culminating activity of the institute teachers develop lesson plans, laboratory experiments, demonstrations, or other activities and…

    Davison, Candace C., Ed.; Lunetta, Lois W., Ed.

    411

    GeoFORCE Alaska, A Successful Summer Exploring Alaska's Geology  

    NASA Astrophysics Data System (ADS)

    Thirty years old this summer, RAHI, the Rural Alaska Honors Institute is a statewide, six-week, summer college-preparatory bridge program at the University of Alaska Fairbanks for Alaska Native and rural high school juniors and seniors. This summer, in collaboration with the University of Texas Austin, the Rural Alaska Honors Institute launched a new program, GeoFORCE Alaska. This outreach initiative is designed to increase the number and diversity of students pursuing STEM degree programs and entering the future high-tech workforce. It uses Earth science to entice kids to get excited about dinosaurs, volcanoes and earthquakes, and includes physics, chemistry, math, biology and other sciences. Students were recruited from the Alaska's Arctic North Slope schools, in 8th grade to begin the annual program of approximately 8 days, the summer before their 9th grade year and then remain in the program for all four years of high school. They must maintain a B or better grade average and participate in all GeoFORCE events. The culmination is an exciting field event each summer. Over the four-year period, events will include trips to Fairbanks and Anchorage, Arizona, Oregon and the Appalachians. All trips focus on Earth science and include a 100+ page guidebook, with tests every night culminating with a final exam. GeoFORCE Alaska was begun by the University of Alaska Fairbanks in partnership with the University of Texas at Austin, which has had tremendous success with GeoFORCE Texas. GeoFORCE Alaska is managed by UAF's long-standing Rural Alaska Honors Institute, that has been successfully providing intense STEM educational opportunities for Alaskan high school students for over 30 years. The program will add a new cohort of 9th graders each year for the next four years. By the summer of 2015, GeoFORCE Alaska is targeting a capacity of 160 students in grades 9th through 12th. Join us to find out more about this exciting new initiative, which is enticing young Alaska Native and minority students into the geosciences. View them as they explore the permafrost tunnel in Fairbanks, sand dunes in Anchorage, Portage Glacier, Matanuska-Susitna Glacier, and the Trans-Alaska pipeline damage from the earthquake of 2002.

    Wartes, D.

    2012-12-01

    412

    General circulation model simulations of winter and summer sea-level pressures over North America  

    USGS Publications Warehouse

    In this paper, observed sea-level pressures were used to evaluate winter and summer sea-level pressures over North America simulated by the Goddard Institute for Space Studies (GISS) and the Geophysical Fluid Dynamics Laboratory (GFDL) general circulation models. The objective of the study is to determine how similar the spatial and temporal distributions of GCM-simulated daily sea-level pressures over North America are to observed distributions. Overall, both models are better at reproducing observed within-season variance of winter and summer sea-level pressures than they are at simulating the magnitude of mean winter and summer sea-level pressures. -from Authors

    McCabe, Jr, G. J.; Legates, D. R.

    1992-01-01

    413

    LP 2003 - 2004 Summer Student Poster Day  

    Cancer.gov

    D  CCR Home   About CCR   CCR Intranet        Laboratory of Pathology LP Home Clinical Services Basic Sciences Training LP Staff Accessibility of Web Site LP 2003 - 2004 Summer Student Poster Day Click on an image to enlarge Back to Summer Student

    414

    Five Steps to Choosing Summer Child Care  

    MedlinePLUS

    ... Guardians » Resources » Additional Resources 5 Steps To Finding Summer Care Wednesday, March 30, 2011 - 9:36 pm | ... efforts in your community to expand and support summer child care options. For more information, contact your ...

    415

    Summer Reading Program for Disadvantaged Youth  

    ERIC Educational Resources Information Center

    During the summer of 1969, Vicore, Inc. simultaneously conducted four classes in reading improvement skills for disadvantaged youth employed as Summer Aids at the Naval Weapons Laboratory in Dahlgren, Virginia. (Author/EB)

    Ramig, Robert R.

    1971-01-01

    416

    Hydromania: Summer Science Camp Curriculum  

    Microsoft Academic Search

    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

    Moura; Joan

    1995-01-01

    417

    Chemical and Biological Summer Poisons  

    PubMed Central

    Summer has its own special poisoning hazards for the vacationer, gardener or outdoorsman. Because of the comparative variety of accidental human poisonings from contact with these seasonal toxic substances, either artificial or natural, many family physicians are unfamiliar with their effects. Some of us, unfortunately, will be called upon to deal with them over the next few months. This article highlights some of the hazards, outlines their toxicology and summarizes the treatment of the poisoned patient.

    Lees, Ronald E. M.

    1972-01-01

    418

    Artists Paint ... Summer: Grade 2  

    ERIC Educational Resources Information Center

    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…

    Herberholz, Barbara

    2012-01-01

    419

    Santa Cruz summer study papers  

    SciTech Connect

    Utilization of conservation measures and application of passive solar design in buildings are examined. The notion that solar energy is materials-intensive and requires so much energy in construction as to be impractical is dispelled. Also, the notion that conservation is doing without is dispelled. This report is a collection of papers by the author related to the Summer Study and entitled: On the Quality of Buildings; Balanced Design; Technical Potential of Combined Passive Solar and Conservation Strategies; and Alternative BEPS Implementation.

    Balcomb, J.D.

    1980-01-01

    420

    Hydromania: Summer Science Camp Curriculum.  

    SciTech Connect

    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.

    Moura, Joan

    1995-07-01

    421

    Summer Reading and the Ethnic Achievement Gap  

    ERIC Educational Resources Information Center

    A number of studies have shown that low-income and minority students undergo larger summer reading losses than their middle-class and White classmates, and that reading is the only activity that is consistently related to summer learning. The purpose of this study was to explore whether reading books during summer vacation improved fall reading…

    Kim, Jimmy

    2004-01-01

    422

    46 CFR 45.53 - Summer freeboard.  

    Code of Federal Regulations, 2013 CFR

    ...2013-10-01 2013-10-01 false Summer freeboard. 45.53 Section 45.53...LOAD LINES Freeboards § 45.53 Summer freeboard. (a) Except as required...this section, the minimum freeboard in summer for a type A vessel is F in the...

    2013-10-01

    423

    Close the Achievement Gap with Summer Learning  

    ERIC Educational Resources Information Center

    Summer vacation from school can bring afternoons at the swimming pool, family vacations, and maybe a spirit-filled summer camp that ignites a passion for art or rock climbing. But for many children, summer also means setbacks in learning that take a tremendous toll on teaching and student performance over time. PTA leaders can make a vital…

    Huggins, Gary

    2012-01-01

    424

    Summer Session Organizational Models at Canadian Universities  

    ERIC Educational Resources Information Center

    The issue of summer session organizational models continues to be of interest to summer session deans/directors and university administrators. The University of Victoria surveyed Canadian universities on this issue in 1994. Based on a similar survey done in 2009, this paper updates the status of Canadian university summer session organizational…

    Kops, Bill

    2010-01-01

    425

    Summer Session: A Time for Innovation  

    ERIC Educational Resources Information Center

    Summer is almost here (at least for those of us who teach semesters). Many of us are taking a well-deserved break to spend time with our families, conduct research, travel, and myriad other activities. Some of us, however, will be teaching summer school. For those of us lucky enough to be teaching this summer, we have one suggestion: Be bold!…

    Mola, Monty

    2013-01-01

    426

    Research Reports: 1984 NASA/ASEE Summer Faculty Fellowship Program  

    NASA Technical Reports Server (NTRS)

    A NASA/ASEE Summer Faulty Fellowship Program was conducted at the Marshall Space Flight Center (MSFC). The basic objectives of the programs are: (1) to further the professional knowledge of qualified engineering and science faculty members; (2) to stimulate an exchange of ideas between participants and NASA; (3) to enrich and refresh the research and teaching activities of the participants' institutions; and (4) to contribute to the research objectives of the NASA Centers. The Faculty Fellows spent ten weeks at MSFC engaged in a research project compatible with their interests and background and worked in collaboration with a NASA/MSFC colleague. This document is a compilation of Fellows' reports on their research during the summer of 1984. Topics covered include: (1) data base management; (2) computational fluid dynamics; (3) space debris; (4) X-ray gratings; (5) atomic oxygen exposure; (6) protective coatings for SSME; (7) cryogenics; (8) thermal analysis measurements; (9) solar wind modelling; and (10) binary systems.

    Freeman, L. M. (editor); Osborn, T. L. (editor); Dozier, J. B. (editor); Karr, G. R. (editor)

    1985-01-01

    427

    Research reports: 1994 NASA/ASEE Summer Faculty Fellowship Program  

    NASA Technical Reports Server (NTRS)

    For the 30th consecutive year, a NASA/ASEE Summer Faculty Fellowship Program was conducted at the Marshall Space Flight Center (MSFC). The basic objectives of the programs, which are in the 31st year of operation nationally, are (1) to further the professional knowledge of qualified engineering and science faculty members; (2) to stimulate an exchange of ideas 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 centers. The Faculty Fellows spent 10 weeks at MSFC engaged in a research project compatible with their interests and background and worked in collaboration with a NASA/MSFC colleague. This document is a compilation of Fellows' reports on their research during the summer of 1994.

    Freeman, L. Michael (editor); Chappell, Charles R. (editor); Six, Frank (editor); Karr, Gerald R. (editor)

    1994-01-01

    428

    Research reports: 1987 NASA/ASEE Summer Faculty Fellowship Program  

    NASA Technical Reports Server (NTRS)

    For the 23rd consecutive year, a NASA/ASEE Summer Faculty Fellowship Program was conducted at the Marshall Space Flight Center (MSFC). The program was conducted by the University of Alabama in Huntsville and MSFC during the period 1 June to 7 August 1987. Operated under the auspices of the American Society for Engineering Education, the MSFC program, as well as those at other NASA Centers, was sponsored by the Office of University Affairs, NASA Headquarters, Washington, D.C. The basic objectives of the program are: (1) to further the professional knowledge of qualified engineering and science faculty members; (2) to stimulate an exchange of ideas between participants and NASA; (3) to enrich and refresh the research and teaching activities of the participant's institutions; and (4) to contribute to the research objectives of the NASA Centers. This document is a compilation of Fellow's reports on their research during the Summer of 1987.

    Karr, Gerald R. (editor); Cothran, Ernestine K. (editor); Freeman, L. Michael (editor)

    1987-01-01

    429

    Research reports: 1994 NASA/ASEE Summer Faculty Fellowship Program  

    SciTech Connect

    For the 30th consecutive year, a NASA/ASEE Summer Faculty Fellowship Program was conducted at the Marshall Space Flight Center (MSFC). The basic objectives of the programs, which are in the 31st year of operation nationally, are (1) to further the professional knowledge of qualified engineering and science faculty members; (2) to stimulate an exchange of ideas 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 centers. The Faculty Fellows spent 10 weeks at MSFC engaged in a research project compatible with their interests and background and worked in collaboration with a NASA/MSFC colleague. This document is a compilation of Fellows' reports on their research during the summer of 1994. Separate articles have been abstracted into the energy data base.

    Freeman, L.M.; Chappell, C.R.; Six, F.; Karr, G.R.

    1994-10-01

    430

    Research Institute for Technical Careers  

    NASA Technical Reports Server (NTRS)

    The NASA research grant to Wilberforce University enabled us to establish the Research Institute for Technical Careers (RITC) in order to improve the teaching of science and engineering at Wilberforce. The major components of the research grant are infrastructure development, establishment of the Wilberforce Intensive Summer Experience (WISE), and Joint Research Collaborations with NASA Scientists. (A) Infrastructure Development. The NASA grant has enabled us to improve the standard of our chemistry laboratory and establish the electronics, design, and robotics laboratories. These laboratories have significantly improved the level of instruction at Wilberforce University. (B) Wilberforce Intensive Summer Experience (WISE). The WISE program is a science and engineering bridge program for prefreshman students. It is an intensive academic experience designed to strengthen students' knowledge in mathematics, science, engineering, computing skills, and writing. (C) Joint Collaboration. Another feature of the grant is research collaborations between NASA Scientists and Wilberforce University Scientists. These collaborations have enabled our faculty and students to conduct research at NASA Lewis during the summer and publish research findings in various journals and scientific proceedings.

    Glenn, Ronald L.

    1996-01-01

    431

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

    PubMed Central

    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.

    Zhang, Yue

    2011-01-01

    432

    Mars' South Polar Cap in Summer  

    NASA Technical Reports Server (NTRS)

    Simultaneous infrared and visible images taken by the camera system on NASA's Mars Odyssey spacecraft show the martian south polar cap in late summer. The black areas in the infrared image are at a temperature near -125 degrees Celsius (-193 degrees Fahrenheit) and correspond to solid carbon dioxide ice. The purple regions are areas of exposed water ice at a temperature near -95 degrees Celsius (-139degrees Fahrenheit). The warmest (red) areas are classic 'dark lanes' of frost-free soil at a temperature near -55 degrees Celsius(-67 degrees Fahrenheit). The right panel shows the same infrared image with a visible image superimposed. The infrared image is approximately 32 kilometers (20 miles) wide.

    The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the 2001 Mars Odyssey mission for NASA's Office of Space Science in Washington, D.C. Investigators at Arizona State University in Tempe, the University of Arizona in Tucson and NASA's Johnson Space Center, Houston, operate the science instruments. Additional science partners are located at the Russian Aviation and Space Agency and at Los Alamos National Laboratories, New Mexico. Lockheed Martin Astronautics, Denver, is the prime contractor for the project, and developed and built the orbiter. Mission operations are conducted jointly from Lockheed Martin and from JPL.

    2002-01-01

    433

    My Summer Internship at Kennedy Space Center  

    NASA Technical Reports Server (NTRS)

    During my summer internship at Kennedy Space Center, I worked on several projects with my mentor Grace Johnson in the Education Programs Office. My primary project was the CubeSat project in which my job was to help mentor Merritt Island High School students in the building of a CubeSat. CubeSats are picosatellites that are used to carry out auxiliary missions; they "piggy back" into orbit on launch vehicles launching primary missions. CubeSats come in the sizes of 1U (10 by 10 by 10 cm) 2U (1Ux2) and 3U (1Ux3). The Cube Sats are housed in a protective deploying device called a Poly Picosatellite Orbital Deplored (P-POD). I also participated in a Balloon Workshop with the MIHS students. This was an intense 4-day project in which we constructed a balloon satellite equipped with a camera whose main goal was to obtain video images of the curvature of the earth at high altitudes and relay it back down to our ground station. I also began developing my own science research program for minority serving institutions to be implemented when funding becomes available. In addition to the projects that I completed during my internship, I got the opportunity to go on various tours of the technological facilities here at Kennedy Space Center.

    Philpott, Hobert Leon

    2011-01-01

    434

    PREFACE: First Multiflow Summer School on Turbulence  

    NASA Astrophysics Data System (ADS)

    Multiflow is a research program, funded by the European Research Council, whose goal is to improve our understanding of the multiscale dynamics of turbulence in fluids. Its first Summer School on Turbulence took place at the School of Aeronautics of the Universidad Politécnica de Madrid over the months of June and July of 2013, with the goal of providing a meeting place for theoreticians, experimentalists and simulators, in which to develop and test new ideas on turbulence physics and structure. Around forty, mostly young, participants from twenty international groups met for five weeks of collaborative work, primarily using the computational data archived in the receiving institution but, in many cases, also contributing their own. Although the format included a few invited formal seminars and periodic plenary meetings, most of the work took place in small groups that, in many cases, changed their composition during the workshop. The papers in these proceedings reflect the results of the work of those groups which, in many cases, later continued in the form of new collaborations. Participants Further information is available in the PDF

    Jiménez, Javier

    2014-04-01

    435

    F-BF Summer Intern  

    NSDL National Science Digital Library

    This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: You have been hired for a summer internship at a marine life aquarium. Part of your job is diluting brine for the saltwater fish tanks. The brine is co...

    436

    Spin-structure function of the neutron ({sup 3}He): SLAC results  

    SciTech Connect

    A first measurement of the longitudinal asymmetry of deep-inelastic scattering of polarized electrons from a polarized {sup 3}He target at energies ranging from 19 to 26 GeV has been performed at SLAC. The spin-structure function of the neutron g{sub 1}{sup n} has been extracted from the measured asymmetries allowing for a test of the Ellis-Jaffe and Bjorken sum rules. The Quark Parton Model (QPM) interpretation of the nucleon spin-structure function is examined in light of the new results.

    Meziani, Z.E.; E-142 Collaboration

    1993-11-01

    437

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

    SciTech Connect

    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.

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

    2008-10-20

    438

    TOSCA calculations and measurements for the SLAC SLC damping ring dipole magnet  

    SciTech Connect

    The SLAC damping ring dipole magnet was originally designed with removable nose pieces at the ends. Recently, a set of magnetic measurements was taken of the vertical component of induction along the center of the magnet for four different pole-end configurations and several current settings. The three dimensional computer code TOSCA, which is currently installed on the National Magnetic Fusion Energy Computer Center's Cray X-MP, was used to compute field values for the four configurations at current settings near saturation. Comparisons were made for magnetic induction as well as effective magnetic lengths for the different configurations. 1 ref., 12 figs., 2 tabs.

    Early, R.A.; Cobb, J.K.

    1985-04-01

    439

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

    SciTech Connect

    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.

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

    2011-09-06

    440

    Upgrade of the SLAC SLED-II Pulse Compression System based on recent High Power Tests.  

    NASA Astrophysics Data System (ADS)

    In the Next Linear Collider (NLC) it is expected that the high power rf components must be able to handle peak power levels in excess of 400 MW. We present 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_01-TE_10 mode converter and the 4-port hybrid have a maximum useful power limit of 220-250 MW. Based on these tests, modifications to these components have been undertaken to improve their peak handling capability. Results of measurements of these modifications will be presented.

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

    1997-05-01

    441

    Research reports: 1991 NASA/ASEE Summer Faculty Fellowship Program  

    NASA Technical Reports Server (NTRS)

    The basic objectives of the programs, which are in the 28th year of operation nationally, are: (1) to further the professional knowledge of qualified engineering and science faculty members; (2) to stimulate an exchange of ideas between participants and NASA; (3) to enrich and refresh the research and teaching activities of the participants' institutions; and (4) to contribute to the research objectives of the NASA Centers. The faculty fellows spent 10 weeks at MSFC engaged in a research project compatible with their interests and background and worked in collaboration with a NASA/MSFC colleague. This is a compilation of their research reports for summer 1991.

    Karr, Gerald R. (editor); Chappell, Charles R. (editor); Six, Frank (editor); Freeman, L. Michael (editor)

    1991-01-01

    442

    Research reports: 1991 NASA/ASEE Summer Faculty Fellowship Program  

    SciTech Connect

    The basic objectives of the programs, which are in the 28th year of operation nationally, are: (1) to further the professional knowledge of qualified engineering and science faculty members; (2) to stimulate an exchange of ideas between participants and NASA; (3) to enrich and refresh the research and teaching activities of the participants' institutions; and (4) to contribute to the research objectives of the NASA Centers. The faculty fellows spent 10 weeks at MSFC engaged in a research project compatible with their interests and background and worked in collaboration with a NASA/MSFC colleague. This is a compilation of their research reports for summer 1991.

    Karr, G.R.; Chappell, C.R.; Six, F.; Freeman, L.M.

    1991-10-01

    443

    Research Reports: 1989 NASA/ASEE Summer Faculty Fellowship Program  

    NASA Technical Reports Server (NTRS)

    For the twenty-fifth consecutive year, a NASA/ASEE Summer Faculty Fellowship Program was conducted at the Marshall Space Flight Center (MSFC). The basic objectives of the programs are: (1) to further the professional knowledge of qualified engineering and science faculty members; (2) to stimulate an exchange of ideas between participants and NASA; (3) to enrich and refresh the research and teaching activities of the participants' institutions; and (4) to contribute to the research objectives of the NASA Centers. The Faculty Fellows spent ten weeks at MSFC engaged in a research project compatible with their interests and background and worked in collaboration with a NASA/MSFC colleague.

    Karr, Gerald R. (editor); Six, Frank (editor); Freeman, L. Michael (editor)

    1989-01-01

    444

    STEM Summer Academy on the Navajo Reservation  

    NASA Astrophysics Data System (ADS)

    The US Rosetta Project is the NASA contribution to the International Rosetta Mission, an ESA cornerstone mission to comet Churyumov-Gerasimenko. While the project's outreach efforts span multi-media, and a variety of age and ethnic groups, a special emphasis has been made to find a way to provide meaningful outreach to the reservation communities. Because language preservation is an issue of urgent concern to the reservation communities, and because Rosetta, uniquely among NASA missions, has been named after the notion that keys to missing understanding of elements of the ancient past were found in the language on the original Rosetta stone, the US Rosetta Project has embarked upon outreach with a focus on STEM vocabulary in ancient US languages of the Navajo, Hopi, Ojibwe, and other tribal communities as the project expands. NASA image and science are used and described in the native language, alongside lay English and scientific English curriculum elements. Additionally, science (geology/chemistry/botany/physics) elements drawn from the reservation environment, including geomorphology, geochemistry, soil physics, are included and discussed in the native language as much as possible — with their analogs in other planetary environments (such as Mars). In this paper we will report on the most recent Summer Science Academy [2012], a four week summer course for middle school children, created in collaboration with teachers and administrators in the Chinle Unified School District. The concept of the Academy was initiated in 2011, and the first Academy was conducted shortly thereafter, in June 2011 with 14 children, 3 instructors, and a NASA teacher workshop. The community requested three topics: geology, astronomy, and botany. The 2012 Academy built on the curriculum already developed with more robust field trips, addressed to specific science topics, additional quantitative measurements and activities, with more written material for the cultural components from Navajo contributors. In 2012, the Academy was conducted with 45 children and 4 instructors. Following up on lessons learned in previous reports, it is clear that community involvement and buy-in is critical to the success of the program. This means that the US Rosetta Project modified its goals and curriculum to accommodate the teaching desires of teachers in the district, and the capabilities of the medicine men that agreed to participate. The use of NASA material and imagery can be shown to have a positive impact on the accessibility of the overall STEM material. Metrics used in the program will be discussed. Future work to extract STEM language elements to enhance the program will include organized Elder's Round Tables for discussion, and recording, of language with first speakers. Work on this project was supported by NASA at California Institute of Technology/Jet Propulsion Laboratory.

    Alexander, C. J.

    2012-12-01

    445

    Parameters for the PEP-II B-Factory at SLAC in 2008  

    SciTech Connect

    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.

    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

    446

    The UCLA/SLAC Ultra-High Gradient Cerenkov Wakefield Accelerator Experiment  

    SciTech Connect

    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.

    Thompson, M.C.; Badakov, H.; Rosenzweig, J.B.; Travish, G.; /UCLA; Hogan, M.; Ischebec, R.; Siemann, R.; Walz, D.; /SLAC; Scott, A.; /UC, Santa Barbara; Yoder, R.; /Manhattan Coll., Riverdale

    2006-01-25

    447

    The calculations and the measurements of neutron moderation time for neutron detectors at SLAC  

    SciTech Connect

    The purpose of this paper is to report the calculations and the measurements of neutron moderation time for common neutron detectors in pulsed radiation field at SLAC. The detectors used for this study were moderated BF{sub 3} counter, Anderson-Braun ABY detector and Bonner spheres (of 2 inches, 3 inches, 5 inches, 8 inches, 10 inches and 12 inches diameter for calculations and of 2{close_quotes} and 10 inch diameter for measurements). The calculations were made using the MCNP4A code. The geometry of detectors were simulated in details. Sources defined in the calculations include various mono-energetic neutrons from a few eV to 20 MeV, giant resonance neutrons (T = 1 MeV) and the measured spectrum at FFTB (Final Focus Test Beam) of SLAC. The effects of concrete shielding on time distribution for FFTB measured equivalent spectrum were also estimated. Results from calculations were compared with measurements made at FFTB. Mean moderation time estimated from these results plays a crucial role in dead time correction factors of detectors working in pulse mode. This work can help in development of a model for dead time correction of neutron detectors in an accelerator field.

    Arora, R.K. [San Jose State Univ., CA (United States); Liu, J.C.; Rokni, S.; Vylet, V. [Stanford Univ., CA (United States)

    1996-06-01

    448

    Personnel dose equivalent monitoring at SLAC using lithium-fluoride TLD's (thermoluminescent dosimeters)  

    SciTech Connect

    TLD's replaced film badges in the early 1970's for all dose equivalent monitoring, both neutron and photon, and for all locations at SLAC. The photon TLD's, composed of Li-7 loaded teflon discs, are calibrated using conventional gamma-ray sources; i.e., Co-60, Cs-137, etc. For these TLD's a nominal value of 1 nC/mrem is used, and is independent of source energy for 100 keV to 3 MeV. Since measured dose equivalents at SLAC are only a small fraction of the allowable levels, it was not deemed necessary to develop neutron dosimeters which would measure dose equivalent accurately for all possible neutron spectra. Today, wallet TLD's, composed of pairs of Li-7 and Li-6 discs, are used, with the Li-6 measuring only thermal neutrons; i.e., they aren't moderated in any way to make them sensitive to neutrons with energies greater than thermal. The assumption is made that there is a correlation between thermal neutron fluences and fast neutron fluences around the research area where almost all neutron doses (exclusive of sealed sources) are received. The calibration factor for these Li-6 TLD's is 1 nC/mrem of fast neutrons. The method of determining the validity of this calibration is the subject of this note. 4 refs., 9 figs., 1 tab.

    Jenkins, T.M.; Busick, D.D.

    1987-03-01

    449

    Ground motion measurements at the LBL Light Source site, the Bevatron and at SLAC  

    SciTech Connect

    This report describes the technique for measuring ground motion at the site of the 1.0 to 2.0 GeV Synchrotron Radiation Facility which was known as the Advanced Light Source (in 1983 when the measurements were taken). The results of ground motion measurements at the Light Source site at Building 6 at LBL are presented. As comparison, ground motion measurements were made at the Byerly Tunnel, the Bevatron, Blackberry Canyon, and SLAC at the Spear Ring. Ground Motion at the Light Source site was measured in a band from 4 to 100 Hz. The measured noise is primarily local in origin and is not easily transported through LBL soils. The background ground motion is for the most part less than 0.1 microns. Localized truck traffic near Building 6 and the operation of the cranes in the building can result in local ground motions of a micron or more for short periods of time. The background motion at Building 6 is between 1 and 2 orders of magnitude higher than ground motion in a quiet seismic tunnel, which is representative of quiet sites worldwide. The magnitude of the ground motions at SLAC and the Bevatron are comparable to ground motions measured at the Building 6 Light Source site. However, the frequency signature of each site is very different.

    Green, M.A.; Majer, E.I.; More, V.D.; O'Connell, D.R.; Shilling, R.C.

    1986-12-01

    450

    Proposal for a Multi-Use Test Beam in the SLAC B-Line  

    SciTech Connect

    With the impending construction of the Linac Coherent Light Source (LCLS) [1] at SLAC, displacing the well used Final Focus Test Beam (FFTB) area, there is growing interest in developing a new test beam facility which makes use of the remaining 2/3 of the SLAC linac, and is available during LCLS operations. The success of the Sub-Picosecond Pulse Source (SPPS) [2] and the desire to preserve this capacity suggest a new beamline with similar or improved electron beam quality, including bunch length compression to 10 {micro}m. Beam availability during LCLS operations requires a new 1-km bypass beamline connecting the 2/3-point of the linac with, for example, the existing B-Line tunnel at the end of the linac. A second operating mode, with LCLS not running, is then available using the existing connection directly from the end of the linac to the B-line. This path would provide the highest beam quality at 30 GeV and also allow a third operational mode by deflecting a few of the very high-brightness 120-Hz, 14-GeV LCLS bunches at low rate (1-10 Hz) into the B-line. Additionally, linear collider research might also be carried out in a short final focus system at the end of the B-Line, capable of producing a 70-nm rms transverse beam size. We describe a design for these systems.

    Emma, P.; Bentson, L.; Erickson, R.; Fieguth, T.; Seeman, J.; Seryi, A.; /SLAC

    2005-05-25

    451

    Results of the SLAC LCLS Gun High-Power RF Tests  

    SciTech Connect

    The beam quality and operational requirements for the Linac Coherent Light Source (LCLS) currently being constructed at SLAC are exceptional, requiring the design of a new RF photocathode gun for the electron source. Based on operational experience at SLAC's GTF and SDL and ATF at BNL as well as other laboratories, the 1.6cell s-band (2856MHz) gun was chosen to be the best electron source for the LCLS, however a significant redesign was necessary to achieve the challenging parameters. Detailed 3-D analysis and design was used to produce near-perfect rotationally symmetric rf fields to achieve the emittance requirement. In addition, the thermo-mechanical design allows the gun to operate at 120Hz and a 140MV/m cathode field, or to an average power dissipation of 4kW. Both average and pulsed heating issues are addressed in the LCLS gun design. The first LCLS gun is now fabricated and has been operated with high-power RF. The results of these high-power tests are presented and discussed.

    Dowell, D.H.; Jongewaard, E.; Limborg-Deprey, C.; Schmerge, J.F.; Li, Z.; Xiao, L.; Wang, J.; Lewandowski, J.; Vlieks, A.; /SLAC

    2007-11-02

    452

    ANALYSIS OF SLICE EMITTANCE MEASUREMENTS FOR THE SLAC GUN TEST FACILITY  

    SciTech Connect

    The Linac Coherent Light Source (LCLS) at SLAC requires the rf photoinjector to produce a beam with a normalized, projected emittance of 1 micron in a 10 ps long bunch with a charge of 1nC. In addition, a small longitudinal emittance is needed to attain the desired 3 kiloamperes peak current after compression in two chicane bunchers. To achieve this excellent beam quality, we are performing systematic studies of both the transverse and longitudinal beam properties from the rf photocathode gun at the SLAC Gun Test Facility (GTF). Time resolved emittances (slice) are determined by using a bunch with a linear energy chirp which is dispersed by a magnetic spectrometer. By varying the strength of a quadrupole lens upstream of the spectrometer allows measurement of the individual slice emittances. Spectrometer images at the various quadrupole settings are binned in small energy/time windows and analyzed for the slice parameters. Our measurements indicate a temporal resolution of approximately 100 femtoseconds. In addition, the longitudinal phase space distribution is determined by measuring the energy spectrum over a range of linac phases. The correlated and uncorrelated components of the phase space distribution are determined by fits to the energy spectra analogous to a quad scan in the transverse dimension. The combined analysis of the transverse and longitudinal data gives not only the slice and longitudinal emittances, but also any correlations due to wakefields or other effects.

    dowell, d

    2004-09-15

    453

    Measurements of ultimate accelerating gradients in the SLAC disk-loaded structure. Part I  

    SciTech Connect

    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.

    Wang, J.W.; Loew, G.A.

    1985-01-01

    454

    Bridge to Success: Insight into Summer Bridge Program Students' College Transition  

    ERIC Educational Resources Information Center

    This study examines the college transition of students who participated in a summer bridge program. Three surveys collected longitudinal data on these students' aspirations and academic and social activities. Data provided from institutional research on their academic progress were also analyzed. A control group composed of non-participating…

    Walpole, MaryBeth; Simmerman, Herb; Mack, Cathy; Mills, John T.; Scales, Michael; Albano, Donna

    2008-01-01

    455

    A Summer Bridge Program for Underprepared First-Year Students: Confidence, Community, and Re-Enrollment  

    ERIC Educational Resources Information Center

    This quasi-experimental, action-research study explored a five-week pre-enrollment initiative called the Pathways Summer Bridge (PSB) Program in the New College of Interdisciplinary Arts and Sciences at Arizona State University (ASU). Theoretically framed and developed using the six components of Tinto's (1993) longitudinal model of institutional

    Suzuki, Anne; Amrein-Beardsley, Audrey; Perry, Nancy J.

    2012-01-01

    456

    Vacation Study Abroad, 1998/99. The Complete Guide to Summer and Short-Term Study.  

    ERIC Educational Resources Information Center

    This guide provides descriptions of 2,008 summer and short-term academic and language study-abroad programs that range in length from one-week to several months. Introductory sections provide information on the Institute of International Education (IIE), IIE publications, the use of the guide, planning study abroad, and 78 publications and 34…

    Steen, Sara J., Ed.

    457

    NASA\\/American Society for Engineering Education (ASEE) Summer Faculty Fellowship Program, 1990  

    Microsoft Academic Search

    Since 1964, NASA has supported a program of summer faculty fellowships for engineering and science educators. The objectives are to further the professional knowledge of qualified engineering and science members; to stimulate and exchange 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

    1990-01-01

    458

    A SURVEY OF INTENSIVE PROGRAMS IN THE UNCOMMON LANGUAGES, SUMMER 1962.  

    ERIC Educational Resources Information Center

    THIS REPORT ON INTENSIVE COURSES IN THE UNCOMMON LANGUAGES CONDUCTED AT 22 AMERICAN COLLEGES AND UNIVERSITIES DURING THE SUMMER OF 1962 IS THE RESULT OF A SURVEY UNDERTAKEN BY H.M. HOENIGSWALD OF THE UNIVERSITY OF PENNSYLVANIA, R.B. NOSS OF THE FOREIGN SERVICE INSTITUTE, AND E.N. MCCARUS AND J.K. YAMAGIWA OF THE UNIVERSITY OF MICHIGAN. (BY…

    HOENIGSWALD, HENRY M.; AND OTHERS

    459

    Work Papers of the Summer Intitute of Linguistics, 1993. University of North Dakota Session, Volume 37.  

    ERIC Educational Resources Information Center

    This volume of work papers from the Summer Institute of Linguistics includes the following: "Goals and Indirect Objects in Seri" (Stephen A. Marlett); "Seri Kinship Terminology" (Mary B. Moser and Stephen A. Marlett); "Quiegolani Zapotec Phonology" (Sue Regnier); "Role and Reference Grammar" (Robert D. Van Valin, Jr.); "The Binding Properties of…

    Dooley, Robert A., Ed.; Meyer, Jim, Ed.

    460

    IMPACTS OF THE NATIONAL SCIENCE FOUNDATIONS SUMMER SCIENCE PROGRAM FOR HIGH ABILITY SECONDARY SCHOOL STUDENTS.  

    ERIC Educational Resources Information Center

    EXAMINED ARE THE EFFECTS OF SUMMER SCIENCE PROGRAMS ON PARTICIPANTS, THEIR HIGH SCHOOLS, THEIR FUTURE EDUCATIONAL PLANS AND CAREERS, AND THE HOST INSTITUTION. ESTABLISHED CRITERIA WERE USED TO SELECT 18 OF 147 PROGRAMS SPONSORED BY THE NATIONAL SCIENCE FOUNDATION IN 1960. ORIENTATION, CLASSROOM, AND RESEARCH PROGRAMS WERE INCLUDED IN THE SAMPLE.…

    EDGERTON, HAROLD A.

    461

    Summer Discovery Program for Academically Gifted Students in Grades 5-8.  

    ERIC Educational Resources Information Center

    Ninety gifted students from Warren County schools participated in a multifaceted summer institute program, focusing on water pollution. Writing and research skills were emphasized. This article describes the rationale, objectives, process, and evaluation design of this program and comments on the future of gifted education. (SJL)

    Hern, Dennis E.; Hern, Ann

    1979-01-01

    462

    The Fermilab Summer Program for Minority Students  

    ERIC Educational Resources Information Center

    Discusses the Fermilab summer program for minority students, its evolution, selection of student participants, selection of student assignments, living arrangements, salaries, and the impact of the program. (SL)

    Carrigan, R. A., Jr.; And Others

    1977-01-01

    463

    LUCIFER status report: summer 2008  

    Microsoft Academic Search

    LUCIFER is a NIR spectrograph and imager (wavelength range 0.9 to 2.5 micron) for the Large Binocular Telescope (LBT) on Mt. Graham, Arizona, working at cryogenic temperatures of less than 70K. Two instruments are built by a consortium of five German institutes and will be mounted at the bent Gregorian foci of the two individual telescope mirrors. Three exchangable cameras

    Holger Mandel; Walter Seifert; Reiner Hofmann; Marcus Jütte; Rainer Lenzen; Nancy Ageorges; Dominik Bomans; Peter Buschkamp; Ralf-Jürgen Dettmar; Carmen Feiz; Hans Gemperlein; André Germeroth; Lutz Geuer; Jochen Heidt; Volker Knierim; Werner Laun; Michael Lehmitz; Ulrich Mall; Peter Müller; Vianac Naranjo; Kai Polsterer; Andreas Quirrenbach; Ludwig Schäffner; Florian Schwind; Peter Weiser; Harald Weisz

    2008-01-01

    464

    International Physics Summer Camp for High School Students  

    NASA Astrophysics Data System (ADS)

    Each year for the past three years, Perimeter Institute for Theoretical Physics in Waterloo, Ontario, Canada, has staged an annual physics summer camp for high school students worldwide. Known as the International Summer School for Young Physicists (ISSYP), it attracts students from all corners of the globe and this year had attendees from 15 countries and 5 continents. The camp is aimed at motivated students around the age of 16 and is a two-week immersion into the exciting world of cutting-edge physics today. It covers topics such as dark matter, superstring theory and quantum computers, and exposes attendees to some of the very latest research results. It includes lectures, tutorials, laboratory visits and small-group projects and, in addition to teaching new material, strives to give students a deeper appreciation of the true nature of science. Throughout, attendees have a great deal of interaction with the institute's scientists. This presentation will give an overview of the camp including the material taught within it, its impact on students and the goals of the program. More information about the camp can be found at: http://www.youngphysicists.ca

    Pope, Damian T.; Korsunsky, B.

    2006-12-01

    465

    The role of supersymmetry phenomenology in particle physics  

    SciTech Connect

    Supersymmetry phenomenology is an important component of particle physics today. I provide a definition of supersymmetry phenomenology, outline the scope of its activity, and argue its legitimacy. This essay derives from a presentation given at the 2000 SLAC Summer Institute.

    Wells, James D.

    2000-12-14

    466

    Enriching Summer Work: An Evaluation of the Summer Career Exploration Program  

    ERIC Educational Resources Information Center

    To determine the impact of the Summer Career Exploration Program (SCEP), a privately funded summer jobs program for low-income teens, P/PV examined the lives of over 1700 applicants. These youth were randomly assigned to participate or to not participate in SCEP in the summer of 1999, and their outcomes were compared at four and twelve months…

    McClanahan, Wendy S.; Sipe, Cynthia L.; Smith, Thomas J.

    2004-01-01

    467

    Hadron Cascade Code, FLUKA82: Setup and Coupling with EGS4 at SLAC (Stanford Linear Accelerator Center).  

    National Technical Information Service (NTIS)

    This note describes a SLAC implementation of the FLUKA hadronic cascade code coupled with the EGS4 electromagnetic cascade code. As an example of the use of FLUKA-EGS, the momentum distribution of pi sup + mesons produced by 18 GeV electrons striking a 0....

    J. Ranft H. J. Moehring T. M. Jenkins W. R. Nelson

    1986-01-01

    468

    Summer Camps in Engineering Technology  

    NSDL National Science Digital Library

    There is mounting evidence that a nationwide shortage of qualified high-tech workers will jeopardize the country's economic future. It is also well established that a more proactive approach must be taken to nurture the intellectual development of underrepresented groups so that the pool of scientists and engineers expands to include more women, minorities, and persons with disabilities. This paper will provide a description of the two one-week Summer Camps offered by the University of North Carolina at Charlotte's (UNC Charlotte) Engineering Technology Department as a part of its Diversity in Engineering Technology project, funded by the National Science Foundation. The purpose of the camps was to involve high school students in an intensive week-long program and show them that engineering and engineering technology could be fun and rewarding. The Engineering Technology Department at UNC Charlotte has four disciplines: Electrical Engineering Technology, Mechanical Engineering Technology, Civil Engineering Technology, and Fire Safety Engineering Technology. Faculty from each of the disciplines developed an educational, but engaging, hands-on activity designed to pique the interest of the campers. The students were encouraged through daily competitions (and a point system) to participate fully in the activities and score the highest number of points. Each student took home prizes at the end of the week, with the higher points allowing an earlier selection off the prize table. In this paper, we describe in detail the objectives and activities developed for each of the four disciplines. Students participated in fire safety activities, bridge building (with a test to destruction), a GPS treasure hunt (geocaching), solar and fuel cell driven model cars with a test of performance, and a trebuchet building day that included testing of accuracy and distance. Throughout the camp and afterwards, students provided candid feedback about each of the activities, what they liked and disliked, and what they thought we could do better. The camps were very well received and the students overwhelmingly indicated that they would like to participate again next year. We will offer a discussion of the lessons learned by this experience, a description of the changes we will establish for next year, and how the summer camps are an integral part of the Diversity in Engineering Technology project.

    Kuyath, Stephen J.; Murphy, David L.; Sharer, Deborah L.

    2009-08-31

    469

    Temperature and ice layer trends in the summer middle atmosphere  

    NASA Astrophysics Data System (ADS)

    We present results from our LIMA model (Leibniz Institute Middle Atmosphere Model) which nicely reproduces mean conditions of the summer mesopause region and also mean characteristics of ice layers known as noctilucent clouds. LIMA nudges to ECMWF data in the troposphere and lower stratosphere which influences the background conditions in the mesosphere. We study temperature trends in the mesosphere at middle and polar latitudes and compared with temperature trends from satellites, lidar, and phase height observations. For the first time large observed temperature trends in the summer mesosphere can be reproduced and explained by a model. As will be shown, stratospheric ozone has a major impact on temperature trends in the summer mesosphere. The temperature trend is not uniform in time: it is moderate from 1961 (the beginning of our record) until the beginning of the 1980s. Thereafter, temperatures decrease much stronger until the mid 1990s. Thereafter, temperatures are nearly constant or even increase with time. As will be shown, trends in ozone and carbon dioxide explain most of this behavior. Ice layers in the summer mesosphere are very sensitive to background conditions and are therefore considered to be appropriate tracers for long term variations in the middle atmosphere. We use LIMA background conditions to determine ice layer characteristics in the mesopause region. We compare our results with measurements, for example with albedos from the SBUV satellites, and show that we can nicely reproduce observed trends. It turns out that temperature trends are positive (negative) in the upper (lower) part of the ice layer regime. This complicates an interpretation of NLC long term variations in terms of temperature trends.

    Lübken, F.-J.; Berger, U.

    2012-04-01

    470

    Electron transport of a Linac Coherent Light Source (LCLS) using the SLAC linac  

    SciTech Connect

    A linac configuration providing a low emittance high peak current electron beam is under study for a potential Linac Coherent Light Source (LCLS) based on the SLAC accelerator. The parameters of the final electron bunch are nearing the technological limits of present accelerators in both transverse and longitudinal phase space. In this note we describe a layout of the RF gun, linac, and bunch compressors to deliver the required bunch properties. We consider a bunch that is generated by an rf gun and accelerated to 7 GeV in 900 m of SLAC linac structure before it enters the wiggler. We assume that the rf gun generates a gaussian beam with an energy of 10 MeV, a population N = 6 {times} 10{sup 9}e{sup {minus}}, an rms length {sigma}{sub z} = 0.5 mm, an rms energy spread {sigma}{sub {delta}} = 0.2%, and normalized rms emittances {gamma}{epsilon}{sub x,y} = 3 mm-mrad. At the end of the linac, we require that the peak current {cflx I} {approx_gt} 2.5 kA and the peak-to-peak energy spread {Delta}{delta} {approx_lt} 0.2%. To obtain the required high peak current, we need to compress the bunch length by a factor greater than 10. In deciding at what position in the linac to compress we need to consider three issues: the longitudinal wakefield in the linac, this increases the beam`s energy spread and is harder to compensate with short bunches, the transverse wakefield and rf deflections in the linac, these increase the transverse emittance of the beam and are more severe for long bunches, and the effects of phase and current jitter which will change the bunch length and therefore the peak current of the beam. In this paper, we will describe how we compress the bunch to meet these three criteria. Then, we will briefly describe the bunch compressor optics and finally we will mention some details specific to the SLAC site.

    Bane, K.L.; Raubenheimer, T.O.; Seeman, J.T.

    1993-05-01

    471

    1972 Sodus [New York] Migrant Summer Program.  

    ERIC Educational Resources Information Center

    The Sodus 1972 Summer Migrant Program entailed many facets to project learning experiences for the migrant of all ages. Its major goal was widening the migrants' experiences so that they might have more control over their own destiny. The 4 major phases to the Sodus Program's operation included the day care center for infants; the Summer Migrant…

    Gadjo, Henry W.; Hayden, Laurie

    472

    Sweating over the Summer Book Listrusa  

    ERIC Educational Resources Information Center

    The ways to proceed with the summer reading list, which will be able to locate some of the books at the public library during the summer months, are presented. The task of creating a reading list is considered to be difficult as there are thousands of books on the market based on reading for pleasure.

    Geier, Denise B.

    2005-01-01

    473

    Building Effective Programs for Summer Learning.  

    ERIC Educational Resources Information Center

    Summer learning comes from reading books, singing songs, playing games, listening to stories, taking trips, and all kinds of other fun activities that kids rarely realize are actually good for them. However, this kind of summer learning can be more difficult for children of low-income and other disadvantaged families. Careful analysis of…

    Johnson, Peter

    474

    Measuring Mindfulness in Summer Camp Staff  

    ERIC Educational Resources Information Center

    Examining mindfulness in a non-clinical and non-therapeutic setting such as a summer camp is an area of growing interest. Our study tested three mindfulness scales with staff in a summer camp setting, and we conducted preliminary reliability and validity analyses for any modifications needed in the scales. Results indicated two major findings: (a)…

    Gillard, Ann; Roark, Mark F.; Nyaga, Lewis Ramsey Kanyiba; Bialeschki, M. Deborah

    2011-01-01

    475

    Summer Dormancy in Perennial Temperate Grasses  

    Microsoft Academic Search

    Background and Aims Dormancy has been extensively studied in plants which experience severe winter conditions but much less so in perennial herbaceous plants that must survive summer drought. This paper reviews the current knowledge on summer dormancy in both native and cultivated perennial temperate grasses originating from the Mediterranean Basin, and presents a unified terminology to describe this trait. Scope

    FLORENCE VOLAIRE; MARK NORTON

    2006-01-01

    476

    PLCO News, Spring/Summer 1998  

    Cancer.gov

    PLCO News, Spring/Summer 1998 Volume 3, Number 1 ----- Spring/Summer 2000 Cancer Information Services If you have a question about cancer, call and speak with a trained specialist at NCI's Cancer Information Service (CIS). The CIS operates a toll-free

    477

    PLCO News, Spring/Summer 1998  

    Cancer.gov

    PLCO News, Spring/Summer 1998 Volume 1, Number 1 ----- Spring/Summer 1998 TABLE OF CONTENTS Notes from the NCI's PLCO Project Office What is the PLCO Trial?Why volunteer?Screening testsWhy two study groups? From Lab to Life

    478

    PLCO News, Spring/Summer 1999  

    Cancer.gov

    PLCO News, Spring/Summer 1999 Volume 2, Number 1 ----- Spring/Summer 1999 Cancer Information Services If you have a question about cancer, call and speak with a trained specialist at NCI's Cancer Information Service (CIS). The CIS operates a toll-free

    479

    PLCO News, Spring/Summer 1999  

    Cancer.gov

    PLCO News, Spring/Summer 1999 Volume 2, Number 1 ----- Spring/Summer 1999 TABLE OF CONTENTS Notes from the NCI's PLCO Project Office Meet Amy SubarMeet Richard Hayes From Lab to Life Fecal Occult Blood Testing for Colorectal Cancer Clinical Trials

    480

    Strategies for a Successful Summer School Program  

    ERIC Educational Resources Information Center

    Coordinating a summer school program can be a very tedious process. Everyone involved, from the support staff to the teachers to the administrators can become overwhelmed with the politics and population enrolled in one's summer program. However, with full understanding of its student population and resources, schools are then prepared to initiate…

    Rischer, Andres Dewayne

    2009-01-01

    481

    A New Vision for Summer School  

    ERIC Educational Resources Information Center

    Summer school makes an unlikely candidate for a bright spot in education reform during these difficult economic times. It occupies a long-held negative place in U.S. culture, prompting dread in the hearts of many former and current students. Summer school conjures up images of sitting in hot classrooms and receiving remedial instruction while…

    Smink, Jeff

    2012-01-01

    482

    Finding the Resources for Summer Learning Programs  

    ERIC Educational Resources Information Center

    Research on summer learning losses has unambiguous implications for America: all children need learning opportunities in the summer. But how and when policymakers, educators, and youth service providers will fashion appropriate programming are far less clear. At the root of this problem is the need to vastly increase, stabilize, and coordinate…

    Sundius, M. Jane

    2007-01-01

    483

    PLCO News, Spring/Summer 1998  

    Cancer.gov

    PLCO News, Spring/Summer 1998 Volume 3, Number 1 ----- Spring/Summer 2000 TABLE OF CONTENTS Oops! We missed putting this issue up on the web. We should get it up by the end of February 2001. Notes from the NCI's PLCO Project Office Meet the PLCO

    484

    Health News You Can Use …from the world's premier research institute  

    MedlinePLUS

    ... Issues Health News You Can Use …from the world's premier research institute Past Issues / Summer 2007 Table ... medical experts who work for you at the world's leading medical and health research organization, the National ...

    485

    SLAC E155 and E155x Numeric Data Results and Data Plots: Nucleon Spin Structure Functions  

    DOE Data Explorer

    The nucleon spin structure functions g1 and g2 are important tools for testing models of nucleon structure and QCD. Experiments at CERN, DESY, and SLAC have measured g1 and g2 using deep inelastic scattering of polarized leptons on polarized nucleon targets. The results of these experiments have established that the quark component of the nucleon helicity is much smaller than naive quark-parton model predictions. The Bjorken sum rule has been confirmed within the uncertainties of experiment and theory. The experiment E155 at SLAC collected data in March and April of 1997. Approximately 170 million scattered electron events were recorded to tape. (Along with several billion inclusive hadron events.) The data were collected using three independent fixed-angle magnetic spectrometers, at approximately 2.75, 5.5, and 10.5 degrees. The momentum acceptance of the 2.75 and 5.5 degree spectrometers ranged from 10 to 40 GeV, with momentum resolution of 2-4%. The 10.5 degree spectrometer, new for E155, accepted events of 7 GeV to 20 GeV. Each spectrometer used threshold gas Cerenkov counters (for particle ID), a segmented lead-glass calorimeter (for energy measurement and particle ID), and plastic scintillator hodoscopes (for tracking and momentum measurement). The polarized targets used for E155 were 15NH3 and 6LiD, as targets for measuring the proton and deuteron spin structure functions respectively. Experiment E155x recently concluded a successful two-month run at SLAC. The experiment was designed to measure the transverse spin structure functions of the proton and deuteron. The E155 target was also recently in use at TJNAF's Hall C (E93-026) and was returned to SLAC for E155x. E155x hopes to reduce the world data set errors on g2 by a factor of three. [Copied from http://www.slac.stanford.edu/exp/e155/e155_nickeltour.html, an information summary linked off the E155 home page at http://www.slac.stanford.edu/exp/e155/e155_home.html. The extension run, E155x, also makes data available. See the E155x home page at http://www.slac.stanford.edu/exp/e155/e155extension/e155x.html

    486

    Institute Study Report  

    NASA Technical Reports Server (NTRS)

    This report documents a study conducted by the MSFC working group on Institutes in 1995 on the structure, organization and business arrangements of Institutes at a time when the agency was considering establishing science institutes. Thirteen institutes, ten science centers associated with the state of Georgia, Stanford Research Institute (SRI), and IIT Research Institute (IITRI), and general data on failed institutes were utilized to form this report. The report covers the working group's findings on institute mission, structure, director, board of directors/advisors, the working environment, research arrangements, intellectual property rights, business management, institute funding, and metrics.

    Whitaker, Ann; Steadman, Jackie; Little, Sally; Underwood, Debra; Blackman, Mack; Simonds, Judy

    1997-01-01

    487

    Institutional Priority for Diversity at Christian Institutions  

    ERIC Educational Resources Information Center

    This evaluative study explored the relationship between institutional priority for diversity and minority enrollment at four schools within the Council for Christian Colleges and Universities, a consortium of Christian institutions. This institutional evaluation utilized public resources in order to gather descriptive data on minority enrollment…

    Paredes-Collins, Kristin

    2009-01-01

    488

    The Spin Structure Function of the Proton from SLAC Experiment E155  

    SciTech Connect

    Experiment E155 at the Stanford Linear Accelerator Center (SLAC) measured the longitudinal and transverse deep inelastic structure functions of the proton and deuteron using a polarized, 48.3 GeV electron beam and solid polarized targets of ammonia ({sup 15}NH{sub 3}) for proton measurements and lithium deuteride ({sup 6}Li{sup 2}H) for deuteron measurements. Three electromagnetic spectrometers at angles of 2.75{sup o}, 5.5{sup o}, and 10.5{sup o} measured the scattered electrons. This work presents an analysis of the longitudinal structure function of the proton, g{sub 1}{sup p}(x, Q{sup 2}). Included is a re-analysis of the proton target polarization data that for the first time corrects a problem encountered which altered those measurements.

    McKee, P

    2004-02-17

    489

    An Ultra-High Gradient Cherenkov Wakefield Acceleration Experiment at SLAC FFTB  

    SciTech Connect

    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.

    Rosenzweig, J.B.; Hoover, S.; Hogan, M.J.; Muggli, P.; Thompson, M.; Travish, G.; Yoder, R.; /UCLA /SLAC /Southern California U.

    2005-08-02

    490

    An Ultra-High Gradient Cerenkov Wakefield Acceleration Experiment at SLAC FFTB  

    SciTech Connect

    The creation of ultra-high current, ultra-short pulse beams (Q=3 nC, {sigma}z= 20 {mu}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 Cerenkov 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.

    Rosenzweig, J.B.; Hoover, S.; Thompson, M.; Travish, G.; Yoder, R. [UCLA Dept. of Physics and Astronomy, 405 Hilgard Ave., Los Angeles, California 90095 (United States); Hogan, M.J. [Stanford Linear Accelerator Center, Stanford California 94309 (United States); Muggli, P. [University of Southern California, University Park Campus, Los Angeles, CA 90089 (United States)

    2004-12-07

    491

    Intense terahertz pulses from SLAC electron beams using coherent transition radiation  

    SciTech Connect

    SLAC has two electron accelerators, the Linac Coherent Light Source (LCLS) and the Facility for Advanced Accelerator Experimental Tests (FACET), providing high-charge, high-peak-current, femtosecond electron bunches. These characteristics are ideal for generating intense broadband terahertz (THz) pulses via coherent transition radiation. For LCLS and FACET respectively, the THz pulse duration is typically 20 and 80 fs RMS and can be tuned via the electron bunch duration; emission spectra span 3-30 THz and 0.5 THz-5 THz; and the energy in a quasi-half-cycle THz pulse is 0.2 and 0.6 mJ. The peak electric field at a THz focus has reached 4.4 GV/m (0.44 V/A) at LCLS. This paper presents measurements of the terahertz pulses and preliminary observations of nonlinear materials response.

    Wu Ziran; Fisher, Alan S.; Hogan, Mark; Loos, Henrik [Accelerator Directorate, SLAC National Accelerator Laboratory, Stanford University, 2575 Sand Hill Road, Menlo Park, California 94025 (United States); Goodfellow, John [Department of Materials Science and Engineering, Stanford University, Stanford, California 94305 (United States); Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States); Fuchs, Matthias [Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States); PULSE Institute for Ultrafast Energy Science, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States); Daranciang, Dan [Department of Chemistry, Stanford University, Stanford, California 94305 (United States); Lindenberg, Aaron [Department of Materials Science and Engineering, Stanford University, Stanford, California 94305 (United States); Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States); PULSE Institute for Ultrafast Energy Science, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States)

    2013-02-15

    492

    Emittance Studies of the BNL/SLAC/UCLA 1.6 Cell Photocathode RF Gun  

    SciTech Connect

    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.

    Palmer, D.T.; /SLAC; Wang, X.J.; /Brookhaven; Miller, R.H.; /SLAC; Babzien, M.; Ben-Zvi, I.; /Brookhaven; Pellegrini, C.; /UCLA; Sheehan, J.; Skaritka, J.; /Brookhaven; Winick, H.; /SLAC; Woodle, M.; Yakimenko, V.; /Brookhaven

    2011-09-09

    493

    Production and decay of Z bosons at the SLC (SLAC Linear Collider)  

    SciTech Connect

    My lectures at Cargese covered the very first physics results from the SLAC Linear Collider (SLC). At the time of this writing (December 1989), it seems most sensible to present a review of the results that were presented at the school in an updated form. The organization of this report will be to give a brief introduction to linear colliders and the SLC, then to describe the MARK II detector, and finally to review the current status of the three major physics topics discussed at Cargese: the Z line shape, from which we deduce the Z mass and width, and the number of neutrino species, the partonic structure of hadronic decays and a measurement of {alpha}{sub s}, and searches for new quarks and leptons. 39 refs., 27 figs., 3 tabs.

    Feldman, G.J.

    1989-12-01

    494

    Measurements of ultimate accelerating gradients in the SLAC disk-loaded structure  

    SciTech Connect

    This paper is a status report on an on-going program at SLAC to study accelerator structures under high-gradient electric field conditions. The study is a part of a much broader program dealing with future linear colliders. The accelerating gradient that might be achievable in such machines is a crucial parameter because once the beam energy is selected, the gradient determines the length of the linac and directly or indirectly affects the choice of many other parameters. To reach 100 MV/m in a conventional 3 m constant-gradient section without SLED, 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 can build up. The design criteria for this section, the fabrication, matching and tuning, the experimental set-up and the results are described. 6 refs., 5 figs., 1 tab.

    Wang, J.W.; Loew, G.A.

    1985-03-01

    495

    Beam Test Proposal of An ODR Beam Size Monitor at the SLAC FFTB  

    SciTech Connect

    ODR (Optical Diffraction Radiation) transverse beam size measurement at the SLAC FFTB at 28.5 GeV is a challenge and it requires special target and optics system, which is much difficult than the conventional ODR beam size measurement. We propose to use a curved disphased conductive slit target to recover the sensitivity in the measurement of the single bunch transverse beam size by using ODR photons from a conductive slit. In order to cancel the effect of the beam divergence, the conductive slit target surface must be curved. Also, we can obtain the focused interference pattern of the ODR photons at the detector at the shorter distance from the target than the {gamma}{sup 2}{lambda}, by using lens optics system.

    Fukui, Y.; Cline, D.; Zhou, F.; /UCLA; Aryshev, A.; Karataev, P.; Muto, T.; Tobiyama, M.; Urakawa, J.; /KEK, Tsukuba; Bolton, P.R.; Ross, M.C.; /SLAC; Hamatsu, R.; /Tokyo Metropolitan U.; Naumenko, G.A.; Potylitsyn, A.; Sharafutdinov, A.; /Tomsk Polytechnic U.

    2006-03-14

    496

    Facility for Advanced Accelerator Experimental Tests (FACET) at SLAC and its Radiological Considerations  

    SciTech Connect

    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.

    Mao, X.S.; Leitner, M.Santana; Vollaire, J.

    2011-08-22

    497

    The Linac Coherent Light Source at SLAC. Radiological Considerations and Shielding calculations  

    SciTech Connect

    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.

    Mao, X.S.; Fasso, A.; Nakao, N.; Rokni, S.H.; Vincke, H.; /SLAC

    2005-12-02

    498

    [Surgical treatment possibilities of advanced carpal collapse (SNAC/SLAC wrist)].  

    PubMed

    Longstanding and untreated scaphoid fractures and scapholunate dissociations lead to painful destruction of the wrist with carpal collapse. The severity of degenerative arthrosis is classified in three stages and can be treated adequate operatively. SNAC wrist (scaphoid nonunion advanced collapse) after failed fusion of the scaphoid and SLAC wrist (scapholunate advanced collapse) after scapholunate dissociation should be differentiated. The reconstruction of the scaphoid or scapholunate ligament in stage II and III is no reasonable option. Motion preserving procedures such as proximal row carpectomy or midcarpal arthrodesis are preferable in this situation. Thirty-one male patients (average 41 years) were treated for SNAC or SLAC wrist with midcarpal arthrodesis. All patients were reexamined, the mean follow-up was 15 months. Grip strength was measured with the Dexter-System, pain was evaluated by a visual analogue scale (VAS 0-100). Patients' daily activities and general quality of life were estimated with the DASH-questionnaire. Pain was reduced to 50% compared to the preoperative situation. Grip strength improved to 60% of the opposite side. Active range of motion reached 50% of the contralateral wrist. Total DASH-score reached 39.0. Nonunion at the fusion site necessitated additional surgery in four patients resulting in total wrist arthrodesis. 80% of the patients returned to their original occupation. Midcarpal fusion is a reliable procedure for treating the difficult condition of advanced carpal collapse if proper realignment of the carpus is performed. The DASH-score reflects the subjective impressions of the patients in daily life and justifies the choice of a salvage procedure preserving wrist mobility. Total wrist fusion represents the last line of defense. PMID:10969544

    Sauerbier, M; Bickert, B; Tränkle, M; Kluge, S; Pelzer, M; Germann, G

    2000-07-01

    499

    The BOSS Emission-Line Lens Survey. II. Investigating Mass-density Profile Evolution in the SLACS+BELLS Strong Gravitational Lens Sample  

    NASA Astrophysics Data System (ADS)

    We present an analysis of the evolution of the central mass-density profile of massive elliptical galaxies from the SLACS and BELLS strong gravitational lens samples over the redshift interval z ? 0.1-0.6, based on the combination of strong-lensing aperture mass and stellar velocity-dispersion constraints. We find a significant trend toward steeper mass profiles (parameterized by the power-law density model with ?vpropr -?) at later cosmic times, with magnitude d < ? > /dz = -0.60 ± 0.15. We show that the combined lens-galaxy sample is consistent with a non-evolving distribution of stellar velocity dispersions. Considering possible additional dependence of on lens-galaxy stellar mass, effective radius, and Sérsic index, we find marginal evidence for shallower mass profiles at higher masses and larger sizes, but with a significance that is subdominant to the redshift dependence. Using the results of published Monte Carlo simulations of spectroscopic lens surveys, we verify that our mass-profile evolution result cannot be explained by lensing selection biases as a function of redshift. Interpreted as a true evolutionary signal, our result suggests that major dry mergers involving off-axis trajectories play a significant role in the evolution of the average mass-density structure of massive early-type galaxies over the past 6 Gyr. We also consider an alternative non-evolutionary hypothesis based on variations in the strong-lensing measurement aperture with redshift, which would imply the detection of an "inflection zone" marking the transition between the baryon-dominated and dark-matter halo-dominated regions of the lens galaxies. Further observations of the combined SLACS+BELLS sample can constrain this picture more precisely, and enable a more detailed investigation of the multivariate dependences of galaxy mass structure across cosmic time. Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These observations are associated with programs 10174, 10494, 10587, 10798, 10886, and 12209.

    Bolton, Adam S.; Brownstein, Joel R.; Kochanek, Christopher S.; Shu, Yiping; Schlegel, David J.; Eisenstein, Daniel J.; Wake, David A.; Connolly, Natalia; Maraston, Claudia; Arneson, Ryan A.; Weaver, Benjamin A.

    2012-09-01

    500

    Scientific Teaching Targeting Faculty from Diverse Institutions  

    PubMed Central

    We offered four annual professional development workshops called STAR (for Scientific Teaching, Assessment, and Resources) modeled after the National Academies Summer Institute (SI) on Undergraduate Education in Biology. In contrast to the SI focus on training faculty from research universities, STAR's target was faculty from community colleges, 2-yr campuses, and public and private research universities. Because of the importance of community colleges and 2-yr institutions as entries to higher education, we wanted to determine whether the SI model can be successfully extended to this broader range of institutions. We surveyed the four cohorts; 47 STAR alumni responded to the online survey. The responses were separated into two groups based on the Carnegie undergraduate instructional program categories, faculty from seven associate's and associate's-dominant institutions (23) and faculty from nine institutions with primarily 4-yr degree programs (24). Both groups expressed the opinion that STAR had a positive impact on teaching, student learning, and engagement. The two groups reported using techniques of formative assessment and active learning with similar frequency. The mix of faculty from diverse institutions was viewed as enhancing the workshop experience. The present analysis indicates that the SI model for training faculty in scientific teaching can successfully be extended to a broad range of higher education institutions.

    Gregg, Christopher S.; Ales, Jo Dale; Pomarico, Steven M.; Wischusen, E. William; Siebenaller, Joseph F.

    2013-01-01