... Accelerator. A New Experiment in the Physics of Elementary Particles,. Corporate ... Subject Categories : PARTICLE ACCELERATORS. ...
DTIC Science & Technology
A brief summary of the talks on accelerator physics presented at this conference, Intersections Between Particle and Nuclear Physics , is given. New accelerator facilities and technologies, beam cooling, and the experiments were part of these discussions.
Energy Citations Database
When the authors first proposed an accelerator-driven reactor, the concept was opposed by physicists who had earlier used the accelerator for their physics experiments. This opposition arose because they had nuisance experiences in that the accelerator wa...
National Technical Information Service (NTIS)
This is a brief prepared for the NSF management to explain the particle and accelerator physics motivations for MICE.
DOE Information Bridge
The article discusses in general terms the state of the art of collective ion accelerator technology and the prospects of further development and applications of ultrahigh energy accelerators. (Author)
The SLC program is an accelerator experiment and a physics experiment. The progress in the accelerator experiment has been rapid, with injector and damping ring components working, conventional construction on schedule, and technical components in production. ...
When the authors first proposed an accelerator-driven reactor, the concept was opposed by physicists who had earlier used the accelerator for their physics experiments. This opposition arose because they had nuisance experiences in that the accelerator was not reliable, and ...
A summary is given of the trigger and data acquisition parameters for a variety of proposed future B physics experiments at hadron accelerators.
The Continuous Electron Beam Accelerator Facility (CEBAF) will be a 4-GeV, 200- mu A superconducting recirculating linear accelerator to provide CW electron beams to simultaneous nuclear physics experiments in three end stations. Funded by the Department ...
This report summarizes the work of the Accelerator Physics Section of the Institute of Nuclear Sciences during the period January-December 1985. Applications of the EN-tandem accelerator included (sup 13)N production for tracer experiments in plants and a...
accelerator-based experiments have been the primary source of new discoveries in particle physics. The Large Hadron Collider is the world�s more powerful accelerator,...
Science.gov Websites
Experimenting with plasticine Hugh Fricker Confusion over the physics of circular motion J K Atkin Theories of acceleration Glen Thomas Reply to J K Atkin and correction Yasin �nsal
NASA Astrophysics Data System (ADS)
The early history of physics at accelerators is reviewed, with emphasis on three experiments which have had a profound influence on our veiw of the structure of matter: The Franck and Hertz experiment opening practical ways of studying nuclear disintegrat...
As a particle physics experiment with the capability to detect neutrinos with energies far beyond those produced at accelerators, IceCube will join the race ...
NASA Website
... some equipment for research in high-energy physics, and of planning experiments to be done at the ZGS accelerator at the ...
... The "sediment" used in the experiments is Polyethylene Terephthalate (PET) whose relevant physical characteristics have been determined to be ...
An amusement park is a large physics laboratory, full of rotating and accelerated coordinate systems. The forces are experienced throughout the body and can be studied with simple equipment or with electronics depending on age and experience. In this paper, we propose adaptations of classical physics ...
ERIC Educational Resources Information Center
Few universities or colleges have an accelerator for use with advanced physics laboratories, but many of these institutions have a scanning electron microscope (SEM) on site, often in the biology department. As an accelerator for the undergraduate, advanced physics laboratory, the SEM is an excellent substitute for ...
Work carried out in 1982 on 52 experiments approved by the Particle Physics Experiments Selection Panel is described. Each experiment is listed under title, collaboration, technique, accelerator, year of running, status and spokesman. Unedited contributio...
l963. The Wisconsin tandem accelerator is used part of the time for experiments in neutron physics. In these experiments the properties of neutrons from charged-particle reactions as well as the interaction of neutrons with nuclei are studied. Some of the techniques used and some of the results obtained ...
The motivation for and present activity in rare kaon decay experiments are described. The reach of present and future accelerators for this physics is discussed. 56 refs., 10 figs.
the international high-energy physics community, the FLUKA particle transport ... accelerator-based elementary particle physics experiments. ...
This paper briefly discusses progress in low energy kaon physics and hypernuclear physics. Certain kaon reactions are discussed and future possible accelerator experiments are described. (LSP)
On the basis of their everyday experiences, students have developed an understanding of many of the concepts of mechanics by the time they take their first physics course. However, an accurate understanding of acceleration remains elusive. Many students have difficulties distinguishing between velocity and ...
Accelerator-based atomic physics experiments at Brookhaven presently use heavy-ion beams from the Dual MP Tandem Van de Graaff Accelerator Facility for atomic physics experiments of several types. Work is presently in progress to develop experiments ...
Where and how will wake field acceleration devices find use for other than, possibly, accelerators for high energy physics. I don't know that this can be responsibly answered at this time. What I can do is describe some recent results from an ongoing expe...
To extend the scope of physics experiments the EhGP-10M accelerator is switched on to pulse operation. Specifications of the nanoseocnd duration pulse shapers are given, so are the results of accelerator pulse regime study. The source of the negatively ch...
The DO experiment was upgraded in spring 2006 to harvest the full physics potential of the Tevatron accelerator at Fermi National Accelerator Laboratory, Batavia, Illinois, USA. It is expected that the peak luminosity delivered by the accelerator will inc...
When particle physics is a closed subject which has been condensed into a text book, the material will surely be organized by concepts and not according to what fact was learned on what accelerator. But short of that day facilities must be designed, planned, and developed, and experiments must be executed on one of a number of ...
Several plasma accelerator concepts are reviewed, with emphasis on the Plasma Beat Wave Accelerator (PBWA) and the Plasma Wake Field Accelerator (PWFA). Various accelerator physics issues regarding these schemes are discussed, and numerical examples on laboratory scale ...
The physics goals, the detector and its performanceas well as status and plans of the NA61/SHINE experiment at the CERN SPS accelerator are presented.
The methology of radio biological experiments using radioactive isotopes as neutron sources is discussed as are accelerators and reactors. The physical mechanisms of neutron interaction with biological objects, methods of measuring and calculating the abs...
The group considered physics, accelerator, and polarized source issues. Most of the physics study was concerned with what significant and unique experiments could be done if polarized protons could be accelerated in the main injector and eventually in the Tevatron. 12 refs., 4 figs.
The possibility of making experiments on heavy ion fusion (accelerator and target physics) and on matter research at high pressure and temperatures (solid-state density, p > 10 Mbar, T > 200000 exp 0 K) is studied. The accelerator-physical limits of the r...
The effect of the age, occupation and physical training on the human tolerance to long term accelerations was investigated. 427 test subjects - fighter pilots, engineers, physicians and research workers were used in the experiments. The lowest tolerance w...
Atomic Physics research with beams from accelerators has continued to expand and the number of papers and articles at meetings and in journals reflects a steadily increasing interest and an increasing support from various funding agencies. An attempt will...
Many materials processing and fluids physics experiments conducted in a microgravity environment require knowledge of the orientation of the low-frequency acceleration vector. This need becomes especially acute for space experiments such as directional so...
This report presents a review of the experiments performed at the MP Accelerator of the Strasbourg Nuclear Research Center. The review is illustrated with some typical experiments. (Atomindex citation 11:504352)
HIRFL is an accelerator complex consisting of 3 accelerators, 2 radioactive beams lines, 1 storage rings and a number of experimental setups. The research activities at HIRFL cover the fields of radio-biology, material science, atomic physics, and nuclear physics. This report mainly concentrates on the ...
Topics by chapter title include: fundamental particles and their interactions with matter; radiation fields: their specification and measurement; particle accelerators and their radiation environments; human response to ionizing radiation; the measurement of radiation fields- radiation detectors; accelerator shielding; induced activity at ...
This paper discusses: accelerator physics and special projects; experiments and injectors; magnetic optics and beam diagnostics; accelerator design and engineering; radio-frequency technology; accelerator theory and simulation; free-electron laser technology; accelerator ...
Accelerator facilities are being used to provide an educational experience to undergraduate students, both science and non-science majors, and to graduate students. Nuclear physics, accelerator physics, atomic physics, chemistry, materials science, and some nuclear ...
Non-accelerator Particle Physics and Neutrino Physics Research programs of: Prof. Martin connect particle physics with astrophysics and cosmology Some questions: - What particles constitute "dark? #12;The techniques: Laboratory experiments, in the style of particle physics ...
E-print Network
These proceedings address numerous topics in high energy physics, including social impact; experiment planning, and accelerator design and operation; testing of current theories; lepton physics; supersymmetry; field theories and particle models; invariance principles and conservation laws; instrumentation and ...
Recent activities at the JAEA-Tokai tandem accelerator facility are presented. The terminal voltage of the tandem accelerator reached 19.1 MV by replacing acceleration tubes. The multi-charged positive-ion injector was installed in the terminal of the tandem accelerator, supplying high-current noble-gas ions. A ...
The experimental observation that all forms of matter experience the same gravitational acceleration is embodied in the weak equivalence principle of gravitational physics. However no experiment has tested this principle for particles of antimatter such a...
Task B is involved in a unified program investigating charmed quark physics in two different, yet related accelerator experiments. The first of these is Fermilab Experiment E760, a high resolution study of the formation of charmonium states in proton-anti...
This report is divided into: the experimental research program; theoretical physics program; accelerator research and development; and divisional computing activities. The experimental research program covers: experiments with data; experiments in plannin...
The coaxial plasma accelerator is a simple, compact, and mechanically robust device that utilizes the Lorentz J�B force to accelerate plasma to high velocity. Originally developed in the 1950s for the purpose of providing energetic plasmas for fusion energy experiments, coaxial plasma accelerators are presently ...
Results of a year-long workshop devoted to a review of the physics opportunities of the BABAR experiment at the PEP-II B Factory, at the Stanford Linear Accelerator Center laboratory are presented.
This report discusses the following topics: Low-energy particle dynamics; QCD dynamics on the lattice; lattice QCD Vacuum; phenomenology & cosmology; the ZEUS Experiment at HERA; neutrino physics at LAMPF; non-accelerator physics; and SSC activity.
A series of small-scale experiments has been proposed to study critical physics issues of a circular induction accelerator for heavy-ion fusion. Because the beam dynamics will be dominated by space charge, the experiments require careful design of the lattice and acceleration schedule. A ...
Many recent discoveries in astrophysics involve phenomena that are highly complex. Carefully designed experiments, together with sophisticated computer simulations, are required to gain insights into the underlying physics. We show that particle accelerators are unique tools in this area of research, by providing precision calibration ...
Dec 29, 2004 ... use experiments to validate granular flow equations derived from fundamental physical principles, in which the acceleration of gravity ...
... Pagination or Media Count : 42. Descriptors : *PLASMAS(PHYSICS), MAGNETIC FIELDS, ACCELERATION, ARGON, GAS FLOW, SHOCK TUBES ...
CCLDAS supports a diverse experimental program, performed in conjunction with ... The flagship device at CCLDAS is a dust accelerator, completed and ... in addition to our own research program, the experimental facilities are open to ...
... Abstract : A short survey is presented of the nuclear physics experiments which were performed recently using particle accelerators similar to the 3 ...
The use of existing Fermilab facilities to provide beams for two muon experiments - the Muon to Electron Conversion Experiment (Mu2e) and the New g-2 Experiment - is under consideration. Plans are being pursued to perform these experiments following the completion of the Tevatron Collider Run II, utilizing the beam ...
A plan for exploring the physics and technology of induction linac development is discussed which involves a series of increasingly sophisticated experiments. The first is the single-beam transport experiment, which has explored the physics of a single space-charge-dominated beam. Second is the multiple-beam ...
This report discusses the NEPTUN-A experiment that will study spin effects in violent proton-proton collisions; the Siberian snake tests at IUCF cooler ring; polarized gas jets; and polarized proton acceleration to 1 TeV at Fermilab.
For true insight into the nature of dark energy, measurements of the precision and accuracy of the Supernova/Acceleration Probe (SNAP) are required. Precursor or scaleddown experiments are unavoidably limited, even for distinguishing the cosmological cons...
The DO experiment is sited at a high-energy particle accelerator, the Tevatron Collider, at the Fermi National Accelerator Laboratory (Fermilab) in Batavia, Illinois, USA. Fermilab is a High-Energy Physics research laboratory operated by Universities Rese...
The meeting was prompted by recent problems with isotope availability from DOE accelerator facilities; these difficulties have resulted from conflicting priorities between physics experiments and isotope production activities. The workshop was a forum in ...
A 3 MV, 800 kA, 24 ns electron beam accelerator is described and the results of initial switching experiments are discussed. The generator will provide a source for studying the physics of processes leading to electron beam driven, inertially confined fus...
A previously developed test design for accelerated aging of photovoltaic modules was experimentally evaluated. The studies included a review of relevant field experience, environmental chamber cycling of full size modules, and electrical and physical eval...
A previously developed test design for accelerated aging of photovoltaic modules was experimentally evaluated. The studies included a review of relevant field experience, environmental chamber cycling of full-size modules, and electrical and physical eval...
Idaho State University Physics Department is assisting the Idaho National Engineering Laboratory in the analysis of beam monitor data taken during an electron accelerator experiment conducted at the Lawerence Livermore National Laboratory in 1987. The bea...
The Main Injector is a new rapid cycling accelerator at Fermilab which is a source of protons to be used in antiproton production to enhance the luminosity of the Tevatron Collider and to provide extracted beams for use in a range of fixed target experiments. We discuss the current status of the accelerator and the ...
J-PARC accelerator research complex, consisting of LINAC, RCS and MR synchrotron, has successfully produced neutron, muons, kaons, and neutrinos by steady commissioning since November 2006. There are three experimental facilities, and for nuclear and particle physics, nine experiments are approved in a hadron ...
The J-PARC (Japan Proton Accelerator Research Complex), which consists of LINAC, RCS and MR synchrotron, has successfully produced wide variety of secondary beam (neutrons, muons, pions, kaons, and neutrinos) by steady commissioning since November 2006. There are three experimental facilities, and for nuclear and particle physics, ten ...
The author presents the status of the long baseline neutrino oscillation experiment MINOS at Fermi National Accelerator Laboratory (Fermilab). He also summarizes the status of the detector and beam construction, the expected event rates and sensitivity to physics. He also comments on possible future plans to improve the performance of ...
The ultimate accelerator for use in atomic physics experiments is one which gives the experimenter free choice of the element to be accelerated, as well as the ability to specify the desired charge state and velocity. Such an accelerator does not as yet exist, but much progress has been made in ...
Since 1991, the CEA has studied the physics of hybrid systems, involving a sub-critical reactor coupled with an accelerator. These studies have provided information on the potential of hybrid systems to transmute actinides and, long lived fission products. The potential of such a system remains to be proven, specifically in terms of the ...
Experiments are being developed at the Triangle Universities Nuclear Laboratory to offer undergraduate physics majors laboratory experiences in the atmosphere of a frontier accelerator facility. These experiments differ from projects done by Undergraduate Research Assistants in that they are ...
The design and performance optimization of particle accelerators is essential for the success of the DOE scientific program in the next decade. Particle accelerators are very complex systems whose accurate description involves a large number of degrees of freedom and requires the inclusion of many physics processes. Building on the ...
Brookhaven National Laboratory's (BNL's) Accelerator Test Facility (ATF) is a user facility for accelerator- and beam- physics. Researchers from national and foreign universities, the DOE's national laboratories, and small businesses can carry out their experiments here, thereby relieving their institutions and ...
From the Department of Energy's Fermi National Accelerator Laboratory Web site, (last mentioned in the August 2, 2000 Scout Report) comes the handy Acronyms of High-Energy Physics Web site. Organized into four categories including laboratories, accelerators, detectors and experiments, and other institutions, each ...
NSDL National Science Digital Library
With the 4 GeV Continuous Electron Beam Accelerator Facility presently under construction in Newport News, Virginia, a new domain of nuclear and subnuclear phenomena can be investigated, mainly through coincidence experiments. An overview of the characteristic features of the accelerator and associated experimental equipment is given. ...
The Radiological Research Accelerator Facility (RARAF) is based on a 4-MV Van de Graaff accelerator, which is used to generate a variety of well-characterized radiation beams for research in radiobiology and radiological physics. The experiments run at RARAF are described, and center on neutron dosimetry, ...
The particles and energies commonly used for medium energy nuclear physics and heavy charged particle radiobiology and radiotherapy at particle accelerators are in the charge and energy range of greatest interest for space radiation health. In this article we survey some of the particle accelerator facilities in the United States and ...
PubMed
Experiments on collective ion acceleration by means of the formation of a virtual cathode have been carried out for a number of years in the Soviet Union and in the United States. Recently, there has been renewed interest in the subject as a possible means of accelerating ions to very high energies. By understanding the ...
This report contains lecture notes on beam dynamics and acceleration concepts in particle accelerators. (LSP)
... Descriptors : *ELECTRON ACCELERATORS, *SOLIDS, DESIGN, LINEAR ACCELERATORS, MEASUREMENT, PHYSICAL PROPERTIES. ...
We propose an accelerator physics experiment in DAFNE to prove the regime of bunch length modulation in storage rings, which has never been tested before in any existing accelerator. The result of the experiment can be of great interest for the future colliders and for the synchrotron light ...
After a brief review of the current neutrino oscillation status, we present neutrino oscillation results for recent and current accelerator-based neutrino experiments including K2K, MiniBooNE and MINOS experiments. We also foreshadow to prospects and status of future various accelerator-based neutrino ...
The 500 nm Free-Electron Laser (ATF) of the Brookhaven National Laboratory is reviewed. We present an overview of the ATF, a high-brightness, 50-MeV, electron accelerator and laser complex which is a users' facility for accelerator and beam physics. A number of laser acceleration and FEL ...
Recent results of accelerator neutrino experiments are reviewed with emphasis on facilities and instrumentations. The progress in neutrino physics in last two decades has been made possible in large part by large underground facilities, which were motivated for the experimental search of phenomena associated with Grand Unified ...
... Descriptors : *PARTICLE ACCELERATORS, *PLASMAS(PHYSICS), *BETATRONS, BETATRONS, PLASMAS(PHYSICS), INSTRUMENTATION ...
The early history of physics at accelerators is reviewed, with emphasis on three experiments which have had a profound influence on our veiw of the structure of matter: The Franck and Hertz experiment opening practical ways of studying nuclear disintegration, and the discovery of the del/sup + +/ isobar of the ...
Although accelerator based experiments for undergraduates are often considered only for junior or senior physics majors, introductory students can also benefit from them. Rutherford backscattering and a {sup 12}C(p,p){sup 12}C elastic scattering resonance can be presented in ways that are well-suited for students who have taken only an ...
This report is a compilation of papers reflecting current trends in non-accelerator particle physics, corresponding to talks that its author was invited to present at the Workshop on Tibet Cosmic Ray Experiment and Related Physics Topics held in Beijing, ...
The Fear of Physics Web site contains more than twenty interactive physics related activities. Everything from things that spin, sound, atoms, collisions, and the Doppler effect are included. The Speed and Acceleration link teaches about movement by allowing users to choose two vehicles and change their position, speed, and ...
oscillation physics in the U.S. is centered at the Fermi National Accelerator Laboratory (FNAL), in particular Long-Baseline Neutrino Physics in the U.S. Sacha E. Kopp a#3; a Department of Physics, University" (NuMI) [1], at the Fermi National Accelerator Laboratory. The #12;rst ...
A workshop took place at La Thuile and at CERN in January 1987 to study the physics potential of three types of particle collider with energies in the TeV region, together with the feasibility of experiments with them. The machines were: a large hadron co...
The document reports on an experiment in a series designed to test the hypothesis of a total physical response, which states that listening comprehension for a foreign language can be accelerated if students are asked to emit a response with the entire bo...
A review is made of the papers describing some superconducting magnet systems used in the high-energy physics experiments. The review consists of three sections: a) pulsed superconducting magnets and superconducting accelerators, b) superconducting magnet...
The bulk of this semiannual progress report of the LASL MP Division is concerned with brief reports of physics research. Other sections deal with facility and experimental developments, accelerator operations, experiments run, new proposals, meetings, and...
The physics opportunities at an asymmetric B Factory operating at the unprecedented luminosity of 10{sup 36} cm{sup -2}s{sup -1} are unique and attractive. The accelerator appears to be practical and the challenges of performing a sensitive experiment in this environment can be met.
Students aged 15 to 22 were asked to describe or explain experiments carried out in a spaceship instead of on the Earth. The test questions cover kicks, centrifugal governors, physical training, acceleration, intermolecular forces, everyday objects (e.g.,...
Activity-based collisional analysis is developed for introductory physics and astronomy laboratory experiments. Crushable floral foam is used to investigate the physics of projectiles undergoing completely inelastic collisions with a low-density solid forming impact craters. Simple drop experiments enable ...
The Maryland Transport Experiment employs a beam of low energy electrons to study, on a scaled basis, the nonlinear physics of space-charge-dominated transport which is important to a range of accelerator systems. Several series of experiments are discussed, which have investigated significant aspects of both the ...
The diversity of non-accelerator experiments is at first look both dazzling and even daunting. However, nearly all of these experiments strive to attain the same goal, to search for new physics, beyond the current Standard Model. These measurements are also unified in the fact that their results are often dominated ...
The YALINA-Booster experiments and analyses are part of the collaboration between Argonne National Laboratory of USA and the Joint Institute for Power & Nuclear Research - SOSNY of Belarus for studying the physics of accelerator driven systems for nuclear...
Development work was performed on an experiment to use the Electron Test Accelerator to search for parity violation in the photodisintegration of deuterium. The enhanced transient field technique was further developed and exploited in several experiments ...
This report discusses some of the experiments that will be held at the Brookhaven RHIC. The detectors that will be used at Brookhaven RHIC are also discussed. The main purpose in building this accelerator is to produce and detect the so-called Quark-Gluon plasma. Purposes are emphasized in this paper. 12 refs., 7 figs. (LSP)
Is low-energy antiproton physics phasing out with the present round of experiments or are there good reasons to continue at an improved slow antiproton facility which could be located at a high intensity hadron accelerator. We point out, that there are fo...
Various types of neutrino detectors are reviewed. They are classified as radiochemical detectors, liquid scintillation detectors, water Cherenkov detectors, detectors for neutrino experiments at high-energy accelerators, and other types of detectors. Epoch-making experiments in neutrino physics achieved with each ...
The Gammasphere array of Compton-suppressed spectrometers has just completed a cycle of experiments at the ATLAS accelerator at Argonne National Laboratory. A majority of experiments studied the properties of nuclei at the very limits of stability in vari...
Thomas Jefferson National Accelerator Facility (Jefferson Lab) is a U.S. Department of Energy Facility (1) conducting Nuclear Physics experiments that currently have data collection rates of up to 20 MB / second. Future experiments, however, are expected ...
HERA-B is a fixed target experiment at the 920 GeV proton beam of the Hera accelerator at Desy in Hamburg. The experiment was originally designed to measure CP violation in the B system. In 2000 the detector was essentially completed. We report on the status of the experiment, the first physics ...
. ############ # #################### ############################################################################### ################# #################################################################################### ########### # Abstract On the KEK-ATF accelerator the proof-of-principle experiment will be carried out, in which ]). ...
We will start with a brief overview of neutrino oscillation physics with emphasis on the remaining unanswered questions. Next, after mentioning near future reactor and accelerator experiments searching for a non zero {theta}{sub 13}, we will introduce the plans for the next generation of long-baseline accelerator ...
The BNL IFEL will be used to optically prebunch the e-beam before sending it into an inverse Cerenkov acceleration (ICA) stage. Prebunching the beam will greatly improve the efficiency of the ICA process. The basic experimental design and preliminary model predictions for the combined ICA/IFEL experiment are discussed. Near-term goals are to demonstrate ...
This document presents our proposal to continue the activities of Boston University researchers in high energy physics research. We have a broad program of participation in both non-accelerator and accelerator-based efforts. High energy research at Boston University has a special focus on the physics program of the ...
An intense muon source can be built in stages to support a uniquely broad program in high energy physics. Starting with a low-energy cooled muon beam, extraordinarily precise lepton flavor violation experiments are possible. Upgrading the facility with acceleration and a muon storage ring, one can build a Neutrino Factory that would ...
Inertial fusion target physics imposes important constraints on the design of linacs for heavy-ion fusion. The most challenging constraint from a scientific standpoint is the requirement that the accelerator deliver more than 10{sup 14} W of beam power to a small quantity (less than 100 mg) of matter. The most challenging constraint from an engineering ...
Recent experimental progress in laser acceleration of charged particles (electrons) and its associated processes has shown that intense electromagnetic pulses can promptly accelerate charged particles to high energies and that their energy spectrum is quite hard. On the other hand some of the high energy astrophysical phenomena such as extremely high ...
The Advanced Test Accelerator (ATA) is a linear induction accelerator being built at Lawrence Livermore National Laboratory. The aim of the ATA, together with its associated physics program is the research and development necessary to resolve whether particle-beam propagation is possible. Since the accelerator is ...
Laser- and particle beam-driven plasma wakefield accelerators produce accelerating fields thousands of times higher than radio-frequency accelerators, offering compactness and ultrafast bunches to extend the frontiers of high energy physics and to enable laboratory-scale radiation sources. Large-scale kinetic ...
Accelerator-driven High-Energy Density Physics (HEDP) experiments require typically 1 nanosecond, 1 microcoulomb pulses of mass 20 ions accelerated to several MeV to produce eV-level excitations in thin targets, the 'warm dense matter' regime. Traditional...
Future experiments to study high energy physics require the construction of new, high-intensity particle accelerators that are pushing the frontiers of accelerator design. Electron cloud effects are considered to be one of the most important factors that ...
. These high-energy deuterons were directed to the boron sample, where they produced 105 atoms of positron to accelerate protons and ions for experiments in nuclear physics and for applications in nuclear medicine. The development of short- pulse high-intensity lasers2 made it possible to accelerate protons and ...
The uses of high-current positive-ion accelerators for low-cross-section reactions are discussed. The use of low intrinsic efficiency detectors and the low counting rate for some experiments using the accelerator are discussed. The production of monoenergetic, variable-energy gamma rays in the nonresonance capture of protons ...
These web pages display and explain the position, velocity and acceleration of an object moving in one dimension. The user is able to experiment with the initial conditions of two objects and see how they move through motion diagrams. Note that, because this is one dimensional motion, the author does not consider the vector nature of the velocity and ...
A continuing problem at many laboratories is the training of new operators in the arcane technology of particle accelerators. Presently most of this training occurs 'on the job,' under a mentor. Such training is expensive, and while it provides operational experience, it is frequently lax in providing the physics ...
The long-range goal of the US Heavy Ion Fusion (HIF) program is to develop heavy ion accelerators capable of igniting inertial fusion targets to generate fusion energy for electrical power production. Accelerators for heavy ion fusion consist of several subsystems: ion sources, injectors, matching sections, combiners, induction ...
Inverse Cerenkov acceleration (ICA) has entered a new phase in its development. The issue of staging and rephasing the optical wave with a microbunched electron beam is now being examined. This ability to accelerate over multiple stages is important for scaling laser accelerator devices to higher energies. An inverse free electron ...
Small scale accelerator technologies provide opportunities in innovative and efficient transportation systems. Accelerator technologies are ever decreasing in size and complexity. The goal of the research was to develop more efficient small scale accelerators by optimizing high current flow through the accelerating ...
The study of the Inverse Free-Electron Laser, as a potential mode of electron acceleration, has been pursued at Brookhaven National Laboratory for a number of years. More recent studies focused on the development of a low energy (few GeV), high gradient, multistage linear accelerator. The authors are presently designing a short ...
Progress achieved in the understanding and development of collective ion acceleration is presented. Extensive analytic and computational studies of slow cyclotron wave growth on an electron beam in a helix amplifier were performed. Research included precise determination of linear coupling between beam and helix, suppression of undesired transients and end effects, and ...
The accelerating expansion of the universe presents an exciting, fundamental challenge to the standard models of particle physics and cosmology. I highlight some of the outstanding challenges in both developing theoretical models and interpreting without bias the observational results from precision cosmology experiments in the next ...
A facility to produce proton-rich radioactive beams for nuclear structure and astrophysics experiments is proposed. This Oak Ridge Exotic Beam (OREB) facility is based on two existing accelerators. Beams of mass up to 80 can be accelerated to energies of about 5 MeV/nucleon. It will provide opportunities to study new areas in nuclear ...
Some discoveries in elementary particle physics are recounted from personal and historical perspective with particular reference to their interaction with particle accelerators. The particle examples chosen include the /psi///ital J/, the /Upsilon/, and the study of nucleon constituents with inelastic electron scattering. Precursors ...
that generate highly stripped ions in order to achieve high energies economically. As a result, acceleratorsMultiple electron stripping of heavy ion beams D. MUELLER,1 L. GRISHAM,1 I. KAGANOVICH,1 R. Accelerators designed primarily for nuclear physics or high energy physics experiments utilize ...
The author's assignment at this conference is to assess where the authors are in high-energy physics and speculate on where the authors might be going. This frees him from any obligation to summarize all that went on here and allows him to talk just about those topics that interest him the most at this time. He will lets his prejudices show and talks a bit about ...
Ultra high energy cosmic rays (UHECR) have been observed but their sources and production mechanisms are yet to be understood. We envision a laboratory astrophysics program that will contribute to the understanding of cosmic accelerators with efforts to: (1) test and calibrate UHECR observational techniques, and (2) elucidate the underlying physics of ...
This report discusses the following topics: OPAL experiment at LEP; Deep inelastic muon interactions at TeV II; D{phi} experiment; Physics with the CLEO detector at CESR; CYGNUS experiment; {nu}{sub e}e elastic scattering experiment; Further results from JADE; Theory of polarization in electron ...
The history of two related strong interaction experiments carried out at the Argonne ZGS accelerator in the mid 1960's is described. These experiments involved the study of the production and decay distributions of ?+p-->?+N for forward production of ?, and ?+p-->N*+? for backward production of N*. Special emphasis is given to ...
The Wii is a very popular gaming console. An important component of its appeal is the ease of use of its remote controller, popularly known as a Wiimote. This simple-looking but powerful device has a three-axis accelerometer and communicates with the console via Bluetooth protocol. We present two experiments that demonstrate the feasibility of using the Wiimote in introductory ...
In the physics department at Concordia College, Moorhead, MN there are three standard experiments in the undergraduate curriculum for which a 350kV Cockroft-Walton ion accelerator is used. These include 1) Rutherford scattering of protons by thin metallic foils, 2) the nuclear reaction of protons with 12C to produce 13N + {gamma} and ...
The purpose of this program was to study the physics of the ion-energy boosting electrostatic lens for collective ion acceleration in the Luce diode. Extensive work was done in preparation for experiments on the PI Pulserad 1150. Analytic work was done on the orbit of protons in a mass spectrometer and a copper stack for nuclear ...
The High Energy Physics Group at the U. of Maryland engaged in a substantial number of different types of particle physics experiments. The largest and most important experiment is that on e exp + e exp - interactions. Three experiments were carried out t...
I describe the future accelerator facilities that are currently foreseen for electroweak scale physics, neutrino physics, and nuclear structure. I will explore the physics justification for these machines, and suggest how the case for future accelerators can be made.
The NASA Headquarters Microgravity Research Division sponsors the Microgravity Research Program with science disciplines of biotechnology, combustion science, fluid physics, fundamental physics, and materials science. Two supporting disciplines are multi-discipline science experiments conducted in a glovebox and microgravity ...
The U.S. Heavy Ion Fusion Virtual National Laboratory is proposing as its next experiment the Integrated Beam Experiment (IBX). All experiments in the U.S. Heavy Ion Fusion (HIF) program up to this time have been of modest scale and have studied the physics of selected parts of a heavy ion driver. The mission of ...
This is a progress report for the period May 1992 through April 1993. The first section, entitled ``Purpose and Trends, gives background on the recent trends in the research program and its evolution from an emphasis on nuclear structure physics to its present emphasis on relativistic heavy ion and RHIC physics. The next section, entitled ...
The volume presents a program of research initiatives in atomic, molecular, and optical physics. The current state of atomic, molecular, and optical physics in the US is examined with respect to demographics, education patterns, applications, and the US economy. Recommendations are made for each field, with discussions of their histories and the relevance ...
A playground can provide a valuable physics education laboratory. For example, Taylor et al. describe bringing teachers in a workshop to a playground to examine the physics of a seesaw and slide, and briefly suggest experiments involving a merry-go-round. In this paper, we describe an experiment performed by ...
A playground can provide a valuable physics education laboratory. For example, Taylor et al.1 describe bringing teachers in a workshop to a playground to examine the physics of a seesaw and slide, and briefly suggest experiments involving a merry-go-round. In this paper, we describe an experiment performed by ...
The Heavy Ion Fusion Accelerator Research Program at Lawrence Berkeley Laboratory has proposed building a 10 MeV Induction Linac Systems Experiment, ILSE, to investigate accelerator physics and beam manipulations which are needed or desirable for an induction linac driver. This paper describes the ...
Aleph is one of the four large High-Energy Physics experiments being completed for the LEP accelerator at CERN. Several hundred thousand detector elements deliver some 500 Mbytes of raw data per second. The authors introduce the accelerator, the experiment and describe the design and ...
Data on real-photon induced reactions have been taken using the Tagged Photon Facility (TPF) and the Continuous Electron Beam Accelerator Facility (CEBAF) at the Thomas Jefferson National Accelerator Facility (JLab) during the first year of running in Hall B. These data have been taken for the purpose of investigating the electromagnetic structure of ...
The technical description treats the arrangement of the Injector System (made up of an existing High Voltage Marx Generator, a new Four-beam Source array and a Beam Conditioning Unit for matching and steering) and the Accelerator Apparatus which contains the 24 shaped-pulsed accelerating units. Flexibility in diagnostic capability and ...
We suggest to start an accelerator physics project called the Mainz Energy recovering Superconducting Accelerator (MESA) as an extension to our experimental facilities. MESA may allow to introduce an innovative internal target regime based on the ERL principle. A second mode of operation will be to use an external polarized electron ...
A pilot accelerator-based source of epithermal neutrons, which is intended for wide application in clinics for boron neutron capture therapy, has been constructed at the Budker Institute of Nuclear Physics (Novosibirsk). A stationary proton beam has been obtained and near-threshold neutron generation regime has been realized. Results of the first ...
With the 4 GeV Continuous Electron Beam Accelerator Facility (CEBAF) presently under construction in Newport News, Virginia, a new range of nuclear and subnuclear phenomena can be investigated, mostly through coincidence experiments. The accelerator characteristics, some examples of its physics programs, and the ...
Most of the scientific tasks of the institute were carried out with the Tandem accelerator. The investigations with polarized particles in the field of nuclear physics were particularly successful in explaining the reaction mechanisms in the presence of resonances. In heavy-ion physics, the study of intermediary structures ...
Atomic Physics research with beams from accelerators has continued to expand and the number of papers and articles at meetings and in journals reflects a steadily increasing interest and an increasing support from various funding agencies. An attempt will be made to point out where interdisciplinary benefits have occurred, and where applications of the new ...
Tarleton State University students began performing both research and laboratory experiments using accelerators in 1998 through visitation programs at the University of North Texas, US Army Research Laboratory, and the Naval Surface Warfare Center at Carderock. In 2003, Tarleton outfitted its new science building with a 1 MV pelletron that was donated by ...
Inertial confinement fusion driven by beams of heavy ions is an attractive route to controlled fusion. In the U.S., induction accelerators are being developed as {open_quotes}drivers{close_quotes} for this process. This paper is divided into two main sections. In the first section, the concept of induction-accelerator driven heavy-ion fusion is briefly ...
A continuing problem at many laboratories is the training of new operators in the arcane technology of particle accelerators. Presently most of this training occurs {open_quotes}on the job,{close_quotes} under a mentor. Such training is expensive, and while it provides operational experience, it is frequently lax in providing the ...
In the past decade, nuclear physics users of Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF) have benefited from accelerator physics advances and machine improvements. As of early 2011, CEBAF operates routinely at 6 GeV, with a 12 GeV upgrade underway. This article reports highlights of ...
The new Schwerionen-Synchrotron (SIS)/Experimenteller Speicher-Ring (ESR) heavy ion accelerator facility (Nucl. Instrum. Methods A {bold 278}, 7, 19 (1989)), built for basic atomic and nuclear physics at Darmstadt (Federal Republic of Germany), also provides unique possibilities to study rf accelerator and beam/target interaction ...
The Advanced Test Accelerator (ATA) is a linear induction electron accelerator whose design parameters are 50 MeV, 10 kA and 70 ns pulse duration. The key physics issues affecting performance of the accelerator involve beam dynamics during transport through the accelerator structure. In this ...
The High Intensity Proton Accelerator Project, named as J-PARC, was started on 1 April 2001 at Tokai-site of JAERI. The accelerator complex of J-PARC consists of three accelerators: 400 MeV Linac, 3 GeV rapid cycle synchrotron and 50 GeV synchrotron; and four major experimental facilities: Material and Life Science Facility, Nuclear ...
Surface acceleration of fast electrons in intense laser-plasma interaction is investigated by using subwavelength grating targets. The fast electron beam emitted along the target surface was enhanced by more than three times relative to that by using planar target. The total number of the fast electrons ejected from the front surface of grating target was two times higher than ...
The recent international standards published by the International Electrotechnical Commission (IEC) on the performance of medical electron accelerators describe suggested test procedures for the performance of radiotherapy accelerators. The recommendations of the Nordic Association of Clinical Physics for testing of the radiation beam ...
The research into advanced acceleration concepts for electron linear accelerators being pursued at SLAC is reviewed. This research includes experiments in laser acceleration, plasma wakefield acceleration, and mmwavelength RF driven accelerators.
Future Accelerators, was created to facilitate international collaboration in the construction and use of accelerators for high energy physics. It was created in 1976 by the...
The Continuous Electron Beam Accelerator Facility (CEBAF) will be a 4-GeV, 200 micro-amp superconducting recirculating linear accelerator to provide CW electron beams to simultaneous nuclear physics experiments in three end stations.Funded by the Department of Energy, CEBAF's purpose is basic research on ...
This year, 1988, is the tenth anniversary of the first use of RF superconductivity to accelerate heavy ions. In June 1978, the first two superconducting resonators of the Argonne Tandem-Linac Accelerator System (ATLAS) were used to boost the energy of a /sup 19/F beam from the tandem, and by September 1978 a 5-resonator linac provided an /sup 16/O beam for ...
This year, 1988, is the tenth anniversary of the first use of rf superconductivity to accelerate heavy ions. In June 1978, the first two superconducting resonators of the Argonne Tandem-Linac Accelerator System (ATLAS) were used to boost the energy of a 19F beam from the tandem, and by September 1978 a 5-resonator linac provided an 16O beam for a ...
