Japan Atomic Energy Research Institute (JAERI) is developing the world's strongest spallation neutron source using high power proton accelerator and promoting a neutron science project for comprehensive studies on basic science and nuclear transmutation o...

In the mid-1930s, after the discovery of the neutron in 1932 and the construction of machines that could accelerate particles, fusion reactions were ...

support for the Los Alamos Neutron Science Center (LANSCE). AOT's R&D efforts include plasma physics, ion beam generation; accelerator physics, engineering, design;...

... Accession Number : AD0196177. Title : PARTICLE ACCELERATORS AS NEUTRON SOURCES FOR NEUTRON RADIOGRAPHS. ...

The China Spallation Neutron Source (CSNS) is an accelerator-based high-power project currently in preparation under the direction of the Chinese Academy of Sciences (CAS). The complex is based on an H-linear accelerator, a rapid cycling proton synchrotro...

complex, consisting of a negative hydrogen-ion injector, a 1 GeV linear accelerator, a proton accumulator ring, and a liquid mercury target system. The SNS accelerator is the only...

As a graduate research in the Faculty of Science, Kyoto University, we are developing a miniature neutron source and conducting experiments with neutrons produced. Compared with X-rays, neutrons haven't been very widely used for material science until now. It is because there are few facilities ...

Recent interest in the production of epithermal neutrons for use in boron neutron capture therapy (BNCT) has prompted an investigation into the feasibility of generating such neutrons with a tandem cascade accelerator. Accelerator-produced neutrons in the range of roughly ...

Nov 3, 2009 ... All the material in the exosphere is accelerated in the ... The inset is a schematic illustration of how thermal neutrons are used to probe ...

Cyclotron Particle Accelerator produces high-energy beams to study radiation damage to reactor materials, neutron radiation therapy for cancer, production of radioisotopes, and...

is the half-mile long linear acceleartor, the heart of LANSCE. This high-intensity proton accelerator powers LANSCE's many experimental facilities including the Lujan Neutron...

... ACCELERATORS, NEUTRON FLUX), NEUTRON ... REACTIONS, REACTOR CORES, ELECTRON ... ELECTRON IRRADIATION, MEASUREMENT. ...

In the last few years there has been increasing interest in the use of heavy ion accelerators for research in nuclear physics, radiobiology, medicine and space science. Neutrons of energy up to that of the primary accelerated heavy ion may be produced by interaction with matter. The knowledge of the yield and ...

For the accelerator production of tritium (APT), the accelerator driven transmutation facility (ADTF), and the advanced fuel cycle initiative (AFCI), tungsten is being proposed as a target material to produce neutrons. In this study, tungsten rods were irradiated at the 800MeV Los Alamos Neutron ...

A linear accelerator for the driver of a mu-mu collider can easily be based on operating characteristics of the Los Alamos Neutron Science Center (LANSCE) linac, or can incorporate many of the advances that have been realized from the Accelerator Driven Transmutation Technologies (ADTT) studies, from the ...

Neutron Science Center (LANSCE) beam-delivery complex, which includes the accelerator, Proton Storage Ring (PSR), and associated beam-transfer lines. (These lines provide the...

... warfare, joint planning, national and international ... tube ion accelerator as neutron ... TUBES, ION ACCELERATORS, MAINTENANCE EQUIPMENT ...

The Los Alamos Neutron Science Center (LANSCE) continues to be a signature experimental science facility at Los Alamos National Laboratory (LANL). The 800 MeV linear proton accelerator provides multiplexed beams to five unique target stations to produce medical radioisotopes, ultra-cold ...

Neutron spectrometry provides many branches of science and technology with the necessary data. Usually the main part of the data is supplied by powerful neutron time-of-flight spectrometers. Nevertheless there are many other very effective but simpler and cheaper neutron spectroscopy methods on ...

A pulsed neutron source facility will be constructed at Kyoto University, where the accelerated 3.5 MeV proton beam will bombard a Li or Be target to generate neutrons. The average current, the pulse width and the typical repetition rate are 100 ?A, 100 ?s and 70 Hz, respectively. The purposes of the system are ...

Recent interest in the production of epithermal neutrons for use in boron neutron capture therapy (BNCT) has prompted an investigation into the feasibility of generating such neutrons with a tandem cascade accelerator. Accelerator-produced neutrons in the...

This paper presents applications of high power RF proton linear accelerators to several fields. Radioisotope production is an area in which linacs have already provided new isotopes for use in medical and industrial applications. A new type of spallation neutron source, called a long-pulse spallation source (LPSS), is discussed for application to ...

Since superconductivity fever spread around the world, neutron powder diffraction has become very popular and been widely used by crystallographers, physicists, chemists, mineralogists, and materials scientists. The purpose of present paper is to show, firstly, important characteristics of time-of-flight TOF powder diffraction using cold-neutron source in ...

When coupled with the spallation process in appropriate target materials, high-power accelerators can be used to produce large numbers of neutrons, thus providing an alternate method to the use of nuclear reactors for this purpose. Spallation offers exciting new possibilities for generating intense neutron fluxes for a variety of ...

When coupled with the spallation process in appropriate target materials, high-power accelerators can be used to produce large numbers of neutrons, thus providing an alternate method to the use of nuclear reactors for this purpose. Spallation offers exciting new possibilities for generating intense neutron fluxes for a variety of ...

The Intense Pulsed Neutron Source (IPNS) facility has now been operating in a routine way for outside users since November 1, 1981. From that date through December of 1982, the accelerator system was scheduled for neutron science for 4500 hours. During this time the accelerator achieved its ...

The Intense Pulsed Neutron Source (IPNS) facility has now been operating in a routine way for outside users since November 1, 1981. From that date through December of 1982, the accelerator system was scheduled for neutron science for 4500 hours. During this time the accelerator achieved its ...

The Los Alamos Neutron Science Center (LANSCE) accelerator and beam delivery complex generates the proton beams that serve three neutron production sources; the thermal and cold source for the Manuel Lujan Jr. Neutron Scattering Center, the Weapons Neutron Research (WNR) ...

A wide programme on neutron-induced data for various applications is running at the 20-180 MeV neutron beam facility at the The Svedberg Laboratory, Uppsala. The main research areas are nuclear data for accelerator-driven transmutation of nuclear waste, single-event effects, and dose effects in fast-neutron cancer ...

A wide programme on neutron-induced data for various applications is running at the 20-180 MeV neutron beam facility at the The Svedberg Laboratory, Uppsala. The main research areas are nuclear data for accelerator-driven transmutation of nuclear waste, single-event effects, and dose effects in fast-neutron cancer ...

Neutron-scattering research has a lot to do with our everyday lives. Things like medicine, food, electronics, cars and airplanes have all been improved by neutron-scattering research. Neutron research also helps scientists improve materials used in a multitude of different products, such as high-temperature superconductors, powerful ...

"The world's brightest pulsed neutron and muon source located at the UK Rutherford Appleton Laboratory," ISIS "supports an international community of around 1600 scientists who use neutrons and muons for research in physics, chemistry, materials science, geology, engineering, and biology." Researchers can find detailed accounts of ...

accelerates protons to generate pulsed neutrons, ORELA bom- bards a tantalum target with electrons, producing's moat with cyber- alligators to keep out the invaders.--B.C. New organizations include Neutron Sciences and two new divisions. The Spallation Neutron Source and High Flux Isotope ...

The Accelerator Production of Tritium (APT) project is developing an accelerator and a spoliation neutron source capable of producing tritium through neutron capture on He-3. A high atomic weight target is used to produce neutrons that are then multiplied and moderated in a blanket prior to ...

The science and technology of proton accelerators have progressed considerably in the past three decades. Three to four orders of magnitude increase in both peak intensity and average flux have made it possible to construct high intensity proton accelerators for modern applications, such as: spallation neutron ...

An experimental neutron source facility has been developed for producing medical isotopes, training young nuclear professionals, providing capability for performing reactor physics, material research, and basic science experiments. It uses a driven subcritical assembly with an electron accelerator. The neutrons ...

The Los Alamos Neutron Science Center (LANSCE) 800 MeV proton linear accelerator (linac) operates at a maximum repetition rate of twice the AC power line frequency, i.e. 120 Hz. The start of each machine cycle occurs a fixed delay after each zero-crossing of the AC line voltage. Fluctuations in the AC line frequency and phase are ...

... FAST NEUTRONS, RADIATION HAZARDS, RADIATION MONITORS, PARTICLE ACCELERATORS, NEUTRON FLUX, NEUTRON COUNTERS. ...

Tritium contamination reduction in small ion accelerators for neutron production, discussing pumping

Soft error rate (SER) testing of devices have been performed using the neutron beam at the Radiation Science and Engineering Center at Penn State University. The soft error susceptibility for different memory chips working at different technology nodes and operating voltages is determined. The effect of 10B on SER as an in situ excess charge source is ...

A new pulsed neutron source based on a beam-blanking device has been under construction and improvement at the Moscow Meson Factory of the Institute for Nuclear Research of the Russian Academy of Sciences. Neutrons are generated in the course of the spallation process in a water-cooled tungsten target by a proton beam with an energy of ...

The centerpieces of the Los Alamos Neutron Science Center (LANSCE) are a half-mile long 800-MeV proton linear accelerator and proton storage ring. The accelerator, storage ring, and target stations provide the protons and spallation neutrons that are used in the numerous basic research and ...

GEANIE is a multi-detector, high-resolution gamma-ray spectrometer that is operated as a collaborative effort between Lawrence Livermore National Laboratory and Los Alamos National Laboratory. The WNR high-energy spallation neutron source at the Los Alamos Neutron Science Center (LANSCE) provides GEANIE's beam. GEANIE enables ...

iThemba Laboratory for Accelerated Based Sciences is a multi-disciplinary research centre, operated by the National Research Foundation. It provides national accelerator and ancillary facilities for research and training in physical, biomedical, chemical and material sciences, research in, and the treatment of, ...

Oak Ridge National Laboratory Physics Division The Oak Ridge Electron Linear Accelerator Pulsed Neutron Source The ORELA is a powerful electron accelerator-based neutron source...

... Accelerators and Colliders; Beam Dynamics; Applications and New Methods of Acceleration; New Methods; Linear Accelerators and Pulsed Power ...

Ibaraki Prefectural Government established Science Frontier 21 Initiative (SF21) in 2001. In SF21 the active co-operations between Tsukuba, Tokai and Hitachi areas are accelerated and two Prefecture's neutron spectrometers have been constructed in order to establish the advanced industrial zone by setting the J-PARC as a key component. ...

This handbook reviews those problems and methods of science and technology where the neutrons produced in the /sup 3/H/d, n//sup 4/He and /sup 2/H/d, N//sup 3/He reactions play the main role. It also discusses possible applications of these small generators as thermal neutron sources, addresses the small ...

At the National Science Centre, Kharkiv Institute of Physics and Technology (NSC KIPT) the possibility of creating an installation with a subcritical reactor driven by an electron accelerator is examined. To obtain the maximal stream of neutrons from a neutron-producing target at a minimal density of energy ...

The use of small accelerators in trace element analyses, as applied to environmental science education at the undergraduate level, is discussed. A 2- MeV Van de Graaff accelerator and a converted neutron generator, operating from 100 to 150 kV are used to accelerate protons for the ...

Several of the neutron scattering instruments at the Intense Pulsed Neutron Source (IPNS) at Argonne use neutron choppers for monochromatization of the neutron beam. Since the neutron burst is produced by a proton beam extracted from the Rapid Cycling Syn...

Next-generation pulsed neutron sources using high-intensity proton accelerators have made a great deal of progress in Japan (J-PARC project), United States (SNS project), and United Kingdom (ISIS second target station project), where the peak intensity of the neutrons flux is expected to be an order of magnitude higher than the ...

The Los Alamos Neutron Science Center (LANSCE) accelerator and beam delivery complex generates the proton beams that serve three neutron production sources, a proton radiography facility and a medical and research isotope production facility. The recent operating history of the facility, including both achievements ...

. Scott. The design and testing high power lithium target for accelerator-based boron neutron capture therapy. Research and Development in Neutron Capture Therapy, Eds.: W. Sauerwein, R. Moss, and A. Wittig . - , , . , . [1] B. Bayanov, et al. Accelerator based neutron source for the ...

As a result of stripping of deuterons accelerated in the JINR proton synchrotron a beam of neutrons was formed with regulated momentum and stabilized intensity. The neutron port was formed in such a manner as to use the stripping neutrons emitted at the a...

Neutron irradiation studies of silicon and liquid phase epitaxial (LPE) GaAs Schottky barrier radiation detectors were carried out using 1.1 MeV fast neutrons produced using the Australian Nuclear Science and Technology Organisation's 3 MeV Van de Graaff accelerator. Neutrons were provided by ...

National Laboratories often have unique facilities that cannot be normally found at universities, and that provide unique opportunities to perform research using world class instrumentation in collaboration with teams of experts. This synergy of expertise and world-class facilities also offers unique opportunities for mentoring and training of students in settings different from the university ...

The China Spallation Neutron Source (CSNS) is an accelerator-based high-power project currently in preparation under the direction of the Chinese Academy of Sciences (CAS). The complex is based on an H- linear accelerator, a rapid cycling proton synchrotron accelerating the beam to 1.6 GeV, a ...

Kharkov Institute of Physics and Technology (KIPT) of Ukraine has a plan to construct an experimental neutron source facility. The facility has been developed for producing medical isotopes, training young nuclear professionals, supporting the Ukraine nuclear industry, providing capability for performing reactor physics, material research, and basic ...

We developed a neutron irradiation facility, neutron exposure accelerator system for biological effect experiments (NASBEE) for biological studies in National Institute of Radiological Sciences, Japan. Irradiation field of 2 MeV average neutrons generated by a Be(d-n)B reaction is established. ...

A description is given of a lead slowing-down spectrometer (LSDS) installed at the 800-MeV proton accelerator of the Los Alamos Neutron Science Center (LANSCE). The LSDS is designed to study neutron-induced fission on actinides that can only be obtained or used in small quantities. The characteristics of this LSDS ...

July 2005 Abstract A description is given of a lead slowing-down spectrometer (LSDS) installed at the 800-MeV proton accelerator of the Los Alamos Neutron Science Center (LANSCE). The LSDS is designed. The characteristics of this LSDS (energy�time relation, energy resolution, neutron flux) are presented through

The report deals with work done during 1988 in the field of muon spectroscopy, neutron scattering, spallation neutron source SINQ, cryogenic detectors, accelerator mass spectrometry, geochemistry, trace elements, aerosol chemistry, heavy elements, cement ...

... 218.1992. Wender, S. Accelerated Neutron Testing of Semiconductor Devices, pp. 52�53. Los Alamos Nuclear Science ... J. Geerts, C. O�Brien. (2009) Novel magnetic-semiconductors in modified iron titanate...

In the context of general environmental concerns, the issue of waste from nuclear power plants is a question of actual interest. Here fundamental research in Nuclear Science may have great potential impact on society and on the longer-term future. In contrast to certain non-scientifically voiced opininos, it is clear, from basic facts of Nuclear Science, ...

Advanced characterization techniques and accelerated simulation are the cornerstones of the Energy Department`s science-based program to maintain confidence in the safety, reliability, and performance of the US nuclear deterrent in an era of no nuclear testing. Neutrons and protons provided by an accelerator-based ...

The heart of the Los Alamos Neutron Science Center (LANSCE) is a pulsed linear accelerator that is used to simultaneously provide H+ and H- beams to several user facilities. This accelerator contains two Cockcroft-Walton style injectors, a 100-MeV drift tube linac and an 800-MeV coupled cavity linac. This ...

The fourteenth International Conference on the Application of Accelerators in Research and Industry was held in November, 1996 in Texas, USA. The United States Department of Energy was one of the sponsors of this conference. The conference was widely attended by accelerator scientists throughout the world. The topics discussed included a wide range of ...

An Accelerator-based Neutron Generator is described that consists of a 30-MeV deuteron linear accelerator using a flowing liquid lithium target. With a continuous deuteron current of 100 milliamperes, a source intensity of more than 10 exp 16 neutrons per...

Using the method of albedo dosimetry, the neutron and photon dose and the mean (effective) neutron energy has been determined in the radiation fields of four different electron accelerators (two linear accelerators, two betatrons). Thermoluminescence-dose...

We installed the data acquisition (DAQ) system on the High Resolution Chopper Spectrometer (HRC) at beamline BL12 at the Materials and Life Science Experimental Facility (MLF) of the Japan Proton Accelerator Research Complex (J-PARC). In inelastic neutron scattering experiments with the HRC, the event data of the detected ...

A modeling investigation was performed to choose moderator material and size for creating optimal epithermal neutron beams for BNCT based on a proton accelerator and the 7Li(p,n)7Be reaction as a neutrons source. An optimal configuration is suggested for ...

Neutron fields in occupationally accessible areas around nuclear reactors, radioisotope sources and medical and high energy accelerators have been characterized using currently available information. Neutron, rem meters, such as the Leake detector, are th...

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 ...

In this work we present an optimized neutron beam shaping assembly for epithermal Accelerator-Based Boron Neutron Capture Therapy (AB-BNCT) and discuss the simulations leading to its design.

In this work we present an optimized neutron beam shaping assembly for epithermal Accelerator-Based Boron Neutron Capture Therapy (AB-BNCT) and discuss the simulations leading to its design.

acceleration level) are typically measured during the science missions to characterize ... acceleration measurement instrument. Measuring the acceleration ...

... joint planning, national and international politics ... Beam Dynamics; Accelerator Technology I ... Descriptors : *PARTICLE ACCELERATORS, SYMPOSIA ...

Los Alamos National Laboratory (LANL) is home to the Los Alamos Neutron Science Center (LANSCE). LANSCE is a unique facility because its neutron spectrum closely mimics the neutron spectrum at terrestrial and aircraft altitudes, but is many times more intense. Thus, LANSCE provides an ideal setting for ...

When completed in 2006, the Spallation Neutron Source (SNS) will use an accelerator to produce the most intense beams of pulsed neutrons in the world. This unique facility is being built by a collaboration of six US Department of Energy laboratories and will serve a diverse community of users drawn from academia, industry, and ...

When completed in 2006, the Spallation Neutron Source (SNS) will use an accelerator to produce the most intense beams of pulsed neutrons in the world. This unique facility is being built by a collaboration of six US Department of Energy laboratories and will serve a diverse community of users drawn from academia, industry, and ...

Discussions on considerations and design of shielding for spallation neutron sources at accelerator facilities are summarized. (WHK)

... Descriptors : *TRITIUM, *PARTICLE ACCELERATOR TARGETS, *NEUTRON FLUX, SOURCES, DEUTERON REACTIONS, TRITON BEAMS, ION ...

... Title : DETAIL VISIBILITY ON NEUTRON RADIOGRAPHS PRODUCED WITH A 35 MEV ELECTRON LINEAR ACCELERATOR. Corporate Author : ...

The Spallation Neutron Source (SNS) is a facility being designed for scientific and industrial research and development. SNS will generate and use neutrons as a diagnostic tool for medical purposes, material science, etc. The neutrons will be produced by bombarding a heavy metal target with a high-energy beam of ...

The process of developing an individual into a competent operator who can safely and efficiently operate the Los Alamos Neutron Science Center (LANSCE), or other accelerator facility, is a complex process. It begins with recruiting and ends with retention; steps in between include training, professional development and career ...

The LASL ion linear accelerator program PIGMI and the application of the technology developed in this program to neutron therapy equipment is described.

Reference Data Tutorials Links Facilities Spallation Neutron Source High Flux Isotope Reactor Scientific Labs Joint Institute for Neutron Sciences Guest House Instruments SNS...

History Reactor Technical Parameters Capabilities Neutron Scattering In-Vessel Irradiation Gamma Irradiation Neutron Activation Analysis Isotope Production Operating Status...

... Accelerator Conference on Accelerator Science and Technology ... of the Nuclear and Plasma Sciences Society of ... with oral and poster presentations. ...

The Los Alamos Neutron Science Center (LANSCE) accelerator is an 800-MeV proton linac that drives user facilities for isotope production, proton radiography, ultra-cold neutrons, weapons neutron research and various sciences using neutron scattering. ...

The Los Alamos Neutron Science Center (LANSCE) accelerator is an 800-MeV proton linac that drives user facilities for isotope production, proton radiography, ultra-cold neutrons, weapons neutron research and various sciences using neutron scattering. ...

Several positive-ion accelerators that are used as neutron sources for activation analysis are described. These accelerators produce neutrons from (p,n) or (d,n) reactions. The Van de Graaff accelerator and two portable neutron generators are illustrated. A mobile ...

SciDAC1, with its support for the 'Advanced Computing for 21st Century Accelerator Science and Technology' (AST) project, witnessed dramatic advances in electromagnetic (EM) simulations for the design and optimization of important accelerators across the Office of Science. In SciDAC2, EM ...

The Nuclear Science and Engineering Research Center (NSERC), a Defense Threat Reduction Agency (DTRA) office located at the United States Military Academy (USMA), sponsors and manages cadet and faculty research in support of DTRA objectives. The NSERC has created an experimental pyroelectric crystal accelerator program to enhance undergraduate education at ...

... Accession Number : AD0193695. Title : PORTABLE ACCELERATING TUBE WITH ION SOURCE FOR NEUTRON GENERATOR. Corporate Author : ...

Accelerators are the largest and most costly scientific instruments of the Department of Energy, with uses across a broad range of science, including colliders for particle physics and nuclear science and light sources and neutron sources for materials studies. COMPASS, the Community Petascale Project for ...

Accelerators are the largest and most costly scientific instruments of the Department of Energy, with uses across a broad range of science, including colliders for particle physics and nuclear science and light sources and neutron sources for materials studies. COMPASS, the Community Petascale Project for ...

Accelerators are the largest and most costly scientific instruments of the Department of Energy, with uses across a broad range of science, including colliders for particle physics and nuclear science and light sources and neutron sources for materials studies. COMPASS, the Community Petascale Project for ...

In support of the Advanced Fuel Cycle Initiative, cross sections for hydrogen and helium production by neutrons are being investigated on structural materials from threshold to 100 MeV with the continuous-in-energy spallation neutron source at the Los Alamos Neutron Science Center (LANSCE). The present measurements ...

A novel neutron reflectometer with horizontal geometry will be established at BL16 in Materials and Life Science Experimental Facility (MLF) of Japan Proton Accelerator Research Complex (J-PARC) as a successor of a reflectometer ARISA-II. ARISA-II corresponding to a single neutron beam downward at 2.22 deg has ...

... fast neutron fluence of 1.8 x 1019 neutrons in ... and provide a significant pulsed neutron simulation ... caused breakdowns in the accelerator bank feed ...

... which accelerate the electrons and deuterons to produce x-rays and neutrons. ... A viable model for neutron and x-ray production in the pinch ...

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 production of stable and radioactive residual nuclides by medium-energy protons and neutrons is of importance for many fields of basic and applied sciences ranging from astrophysics over space and environmental sciences, medicine, accelerator technology, space and aviation technology to ...

The production of stable and radioactive residual nuclides by medium-energy protons and neutrons is of importance for many fields of basic and applied sciences ranging from astrophysics over space and environmental sciences, medicine, accelerator technology, space and aviation technology to ...

An ideal neutron beam for BNCT is a beam of epithermal neutrons, forward directed, and free of gamma rays and thermal and fast neutrons. Three neutron beams were evaluated, and compared: (1) the operating Brookhaven Medical Research Reactor (BMRR) epither...

Rapid advances in accelerator technology in recent years promise average proton beam currents as high as 250 mA with energies greater than one GeV. Such an accelerator could produce very high intensities of neutrons and other nuclear particles thus opening up new areas of science and technology. An example is the ...

Study of a small accelerator-driven subcritical research reactor in the Vin?a Institute of Nuclear Sciences was initiated in 1999. The idea was to extract a beam of medium-energy protons or deuterons from the TESLA accelerator installation, and to transport and inject it into the reactor. The reactor core was to be composed of the ...

Particle accelerators are among the most complex and versatile instruments of scientific exploration. They have enabled remarkable scientific discoveries and important technological advances that span all programs within the DOE Office of Science (DOE/SC). The importance of accelerators to the DOE/SC mission is evident from an ...

A wide variety of applications ranging from medical (BNCT, Boron Neutron Capture Therapy) and basic science (neutron imaging, material studies) to homeland security (explosive detection and nuclear material non-proliferation) are in need of compact, high flux neutron generators. The Plasma and Ion Source Technology ...

The Rotating Target Neutron Source II facility (RTNS-II) operated for over nine years. Its purpose was to provide high intensities of 14 MeV neutrons for materials studies in the fusion energy program. For the period from 1982-1987, the facility was supported by both the US (Department of Energy) and Japan (Ministry of Education, Culture, and ...

A conceptual design has been completed for an isotope production facility at the high energy end of the Los Alamos Neutron Science Center (LANSCE) accelerator. The authors propose a system that provides a unique irradiation environment that makes use of the 1-mA, 800-MeV proton beam. By placing the isotope production targets within a ...

Materials samples were recently irradiated in the Los Alamos Radiation Effects Facility (LASREF) at the Los Alamos Neutron Science Center (LANSCE) to provide data for the Accelerator Production of Tritium (APT) project on the effect of irradiation on the mechanical and physical properties of materials. The targets were configured to ...

We report a successful demonstration of a high S/N ratio spin flip chopper (SFC) system for pulsed neutron sources. The system consists of two SFCs and each SFC consists of a radio frequency (RF) flipper and Soller magnetic supermirrors. The aperture of the Soller mirror was 18 mm in width and 20 mm in height. The S/N ratio of the system was 306:1. This system is going to be ...

... neutrons. A linear accelerator provided the radiation for both tests (10-Mev electrons and uranium photoneutrons respectively). ...

The acceleration of protons to relativistic energies in active galactic nuclei leads to the creation

... SCIENTIFIC RESEARCH, PARTICLE ACCELERATOR TARGETS, NUCLEAR PARTICLES, NEUTRON ... TIN, NUCLEAR RESONANCE, ISOTOPES ...

... Title : BULK ELEMENTAL ANALYSIS BY THE INELASTIC SCATTERING OF NEUTRONS PRODUCED WITH A VAN DE GRAAFF ACCELERATOR. ...

threshold for accelerator boron neutron capture therapy. Med. Phys. 27(1), 192�202 (2000). 11. Schmid, EAN ACCELERATOR-BASED NEUTRON MICROBEAM SYSTEM FOR STUDIES OF RADIATION EFFECTS Yanping Xu1 2010 A novel neutron microbeam is being developed at the Radiological Research ...

Argonne National Laboratory (ANL) of USA and Kharkov Institute of Physics and Technology (KIPT) of Ukraine have been collaborating on the conceptual design development of a neutron source facility. It is based on the use of an electron accelerator driven subcritical (ADS) facility with low enriched uranium fuel, using the existing electron ...

From the site: "Science Accelerator is a gateway to science, including [research and development] results, project descriptions, accomplishments, and more, via resources from the Office ... ...

The history of linear accelerators is outiined, and the characteristics of linear accelerators used to achieve high energies are described. Electron accelerators are discussed, and the use of the Cockcroft-Walton accelerator to produce neutrons by the D-T reaction is shown. (T.F.H.)

The Rapid Cycling Synchrotron (RCS) of the Intense Pulsed Neutron Source (IPNS) operating at Argonne National Laboratory is presently producing intensities of 2 to 2.5 x 10/sup 12/ protons per pulse (ppp) with the addition of a new ion source. This intensity is close to the space charge limit of the machine, estimated at approx.3 x 10/sup 12/ ppp, depending somewhat on the ...

The Rapid Cycling Synchrotron (RCS) of the Intense Pulsed Neutron Source (IPNS) operating at Argonne National Laboratory is presently producing intensities of 2 to 2.5 x 10/sup 12/ protons per pulse (ppp) with the addition of a new ion source. This intensity is close to the space charge limit of the machine, estimated at approx. 3 x 10/sup 12/ ppp, depending somewhat on the ...

The Rapid Cycling Synchrotron (RCS) of the Intense Pulsed Neutron Source (IPNS) operating at Argonne National Laboratory is presently producing intensities of 2-2.5 x 10/sup 12/ protons per pulse (ppp) with the addition of a new ion source. This intensity is close to the space charge limit of the machine, estimated at about 3 x 10/sup 12/ ppp, depending somewhat on the ...

Neutron energy spectra penetrated through iron shields were measured using the Self-TOF detector and an NE213 organic liquid scintillator which have been newly developed by our group at the Heavy-Ion Medical Accelerator in Chiba (HIMAC) of National Institute of Radiological Sciences (NIRS), Japan. Neutrons were ...

The neutron leakage from medical and industrial electron accelerators has become an important problem and its detection and shielding is being performed in their facilities. This study provides a new simple method of design calculation for neutron shielding of those electron accelerator facilities by dividing into ...

The authors use the Los Alamos LAHET Code System (LCS)/CINDER`90 suite of codes in a variety of spallation neutron source applications to predict neutronic performance and as a basis for making engineering decisions. They have broadened their usage of the suite from designing LANSCE and the next generation of spallation neutron sources ...

The purpose of this work was to support the design of neutron shields for medium-energy accelerators using neutron transport codes and high-energy cross-section sets. In addition, an estimate was made of the effect of conservatism on facility cost, and thus the incentive to reduce uncertainty associated with the analyses.

The neutral particle 4N channel constructed at Serpukhov accelerator is described. The channel is designed for high energy neutron beam production. The neutron beam has the following characteristics: average energy of neutrons is (40+-5) GeV, intensity - ...

Perfect-crystal neutron interferometers are subject to degradation of their performance caused by vibrational accelerations. It is shown that the most seriously offending accelerations are rotational, and an effective and simple vibration isolation system that has been developed at the MIT Neutron Diffraction ...

Several accelerator-based neutron capture therapy applications are under development. These applications include boron neutron capture therapy for glioblastoma multiform and boron neutron capture synovectomy (BNCS) for rheumatoid arthritis. These modalities use accelerator-based ...

The intensity of proton accelerator has attained to the order to mega-watt, and several MW-class proton accelerators start to operate in the world. J-PARC is a complex of three accelerators, and generates a variety of secondary beams, i.e. muon beam, neutron beam, meson beam and neutrino beam. The muon facility is ...