Since the superconducting heavy ion linac ATLAS is an ideal post-accelerator for radioactive beams, plans are being developed for expansion of the facility with the addition of a driver accelerator, a production target/ion source combination, and a low q/...
National Technical Information Service (NTIS)
Since the superconducting heavy ion linac ATLAS is an ideal post-accelerator for radioactive beams, plans are being developed for expansion of the facility with the addition of a driver accelerator, a production target/ion source combination, and a low q/m pre-accelerator for radioactive ions. ...
Energy Citations Database
The Accelerator Production of Tritium (APT) project will employ a high power proton accelerator to generate neutrons in a spallation target for the production of tritium. This paper will describe major attributes of the safety of this facility. 1 fig.
DOE Information Bridge
At Sandia National Laboratories we are assessing the response of fusion target materials to shock loading with the particle beam accelerators HYDRA and PROTO I and the gas gun facility. Nonlinear shock-accelerated unstable growth of fabrication irregulari...
flowing powder target. The same concept could be used for a Spallation Neutron Source target Spallation Neutron Source", Proc. of ICONE-12, Washington DC, USA, Paper 49518 [2] RB Palmer et al, 200 Nucl
E-print Network
This proposal is submitted in response to a programmatic need at LLL for a supplier of 50-cm targets (tritided) for the new RTNS-II facility. Previous letters of inquiry to Mound also delineate a need for recovery of tritium from expended RTNS-II targets....
A compilation is presented of the experimental facilities of the world's cyclotrons including history and status, staff and operation, research staff, target facilities, magnet, acceleration system, vacuum system, characteristic beams, beam properties, and a plan view of the facility ...
The China Spallation Neutron Source (CSNS) is an accelerator-based facility. The accelerator of CSNS consists of a low energy linac, a Rapid Cycling Synchrotron (RCS) and two beam transport lines. The overall physics design of CSNS accelerator is described, including the design principle, the choice of the main ...
NASA Astrophysics Data System (ADS)
Following a brief introduction to Fermilab facilities and a review of the accelerator status and plans, the physics potential for the Fermilab III upgrade program is discussed for both the fixed target and collider modes.
We review plans for future fixed target lepton- and hadron-scattering facilities, including the 12 GeV upgraded CEBAF accelerator at Jefferson Lab, neutrino beam facilities at Fermilab, and the antiproton PANDA facility at FAIR. We also briefly review recent theoretical developments which will ...
Particle accelerators have evolved over the last 50 years from simple devices to powerful machines, and will continue to have an important impact on research, technology and lifestyle. Today they cover a wide range of applications, from television and com...
The Los Alamos Meson Physics Facility (LAMPF) consists of a linear accelerator with multiple target systems, where the particle beam is being switched into separate channels to be aimed at discrete terminals to perform a variety of functions. The beam is ...
A tungsten moderator will be placed behind the target of the Oak Ridge Electron Linear Accelerator (ORELA) to convert gamma radiation to slow positrons. These will be extracted and led through evacuated solenoids to an experiment room. A Penning trap will...
For studies of interactive surface effects caused by the simultaneous bombardment of targets by both chemically active and inactive ion species (e.g., D exp + and He exp + , respectively) a two beam component accelerator facility was placed in operation. ...
The electromagnetic isotope enrichment facility at ORNL provides a broad spectrum of highly enriched stable isotopes to the worldwide scientific community. The continued timely availability of these materials is of vital importance in many areas of basic research and, in particular, as source material for the fabrication of accelerator ...
The work is aimed at experimental determinign and computer simulating the independent and cumulative yields of residual product nuclei in the target and structure materials of the transmutation facilities driven by high-current accelerators.
avionics systems, such as the upcoming mission to Europa, the ... The band diagram of such a device is shown in Fig ... All UV light ... The parameters that determine the target theory curve should ..... b. IUCF is the Indiana Cyclotron Facility. UCD is the UC Davis facility. GMH is the electron accelerator ...
NASA Website
Targets are made at Los Alamos for experiments at the Ion Beam Facility (Van de Graaff), the Medium Energy Physics Facility (LAMPF), and for experiments conducted at many other accelerators in the US and Europe. Thin, isotopic targets are made by sputtering and evaporation. Versatile, ...
A heavy liquid-metal target has been proposed as a representative target of a 5MW-scale neutron source for a neutron scattering facility coupled with a high-intensity proton accelerator. In the report, about mercury considered to be the best material of t...
The Holifield Radioactive Ion Beam Facility (HRIBF) construction project has been completed and the first radioactive ion beam has been successfully accelerated. The project, which began in 1992, has involved numerous facility modifications. The Oak Ridge Isochronous Cyclotron has been converted from an energy booster for heavy ion ...
The MUSE-4 experiment, dedicated to the Accelerator Driven System (ADS) development studies, was achieved in the MASURCA nuclear reactor facility from 2000 to 2004. An external neutron source was introduced in a lead buffer zone located at the centre of the reactor core in order to simulate the spallation source. This paper deals with the GENEPI ...
In July 1992, a project was started to reconfigure the Holifield Heavy Ion Research Facility (HHIRF) to form the Holifield Radioactive Ion Beam Facility (HRIBF). This ORNL project to produce medium-intensity, proton-rich, radioactive ion beams (RIBS) for astrophysics, nuclear physics, and applied research was first described to the SNEAP community at Chalk ...
This proposal is submitted in response to a programmatic need at LLL for a supplier of 50-cm targets (tritided) for the new RTNS-II facility. Previous letters of inquiry to Mound also delineate a need for recovery of tritium from expended RTNS-II targets. As explained in this proposal, the tritided target ...
There is considerable interest worldwide in the research which could be done at a next generation, advanced radioactive beam facility. To generate high quality, intense beams of accelerated radionuclides via the {open_quotes}isotope separator on-line{close_quotes} (ISOL) method requires two major accelerator components: a high power ...
The Neutrino Factory is an important tool in the long-term neutrino physics program. Substantial effort is put internationally into designing this facility in order to achieve desired performance within the allotted budget. This accelerator is a secondary beam machine: neutrinos are produced by means of the decay of muons. Muons, in turn, are produced by ...
A preconceptual design for an Accelerator Production of Tritium (APT) facility is currently under development by several national laboratories in conjunction with industry. The design consists of an accelerator that bombards a spallation target with high energy protons. Neutrons are produced in the spallation ...
... PARTICLE ACCELERATORS, *TRITIUM, *PRODUCTION ENGINEERING, FEASIBILITY STUDIES, PARTICLE ACCELERATOR TARGETS, HELIUM ...
DTIC Science & Technology
Proton irradiation set up at 14UD BARC-TIFR Pelletron Accelerator Facility at TIFR is being utilized to conduct experiments for variety of applications including, production of radionuclides such as 52Mn, 96Tc and 236Pu and for monoenergetic high energy neutrons production via Li (p, n) Be reaction. The installation and commissioning of the multi ...
We describe Monte Carlo simulations of three facilities for the production of epithermal neutrons for Boron Neutron Capture Therapy (BNCT) and examine general aspects and problems of designing the spectrum-shaping assemblies to be used with these neutron sources. The first facility is based on an accelerator-driven low-power ...
... joint planning, national and international ... ACCELERATORS, *PROTON ACCELERATORS, PARTICLE ACCELERATOR TECHNIQUES ...
Future advances in several research areas are being based around accelerator facilities that employ targets for generating neutrons, neutrinos or rare isotopes. The demand for higher neutron intensities and particle or isotope production is driving facilities to higher accelerator powers and ...
A number of questions which deal with the serviceability of structural materials for the beam stop first-wall and stripper targets of the Moscow Meson Facility (MMF) are considered. This report compares the effects on target lifetime of factors such as radiation damage, thermal heating, constant and dynamic thermostresses, and erosion ...
The recent paper 'Accelerator and Target Technology for Accelerator Driven Transmutation and Energy Production' and report 'Accelerators for America's Future' have endorsed the idea that the next generation particle accelerators would enable ...
This chapter is designed to serve as a review and reference for the wide and still-evolving field of particle sources and accelerators. The object of this chapter is to give a comprehensive and easily understandable survey of the field in greater detail to the users of accelerators, nuclear physicists and chemists, as well as students. The field of ...
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 Science Center ...
A deuteron linear accelerator capable of accelerating continuous 100 mA beam currents to an energy of 30 MeV and producing high energy neutrons via deuteron breakup on a liquid lithium target will be described. The facility will contain two 500-kV injecto...
Results are presented of exploratory and preliminary studies of a next generation of heavy ion accelerators. The conclusion is reached that useful luminosities are feasible in a colliding beam facility for relativistic heavy ions. Such an accelerator complex may be laid out in such a way as to provide extractebeams for fixed ...
The Holifield Radioactive Ion Beam Facility (HRIBF) includes a cyclotron (ORIC) which provides high-intensity light-ions for producing radioactive atoms, and a 25 MV tandem electrostatic accelerator which is used to accelerate the radioactive-ions for nuclear structure and nuclear astrophysics research. Ion sources and ...
A new approach for positron acceleration in non-linear plasma wakefields driven by electron beams is presented. Positrons can be produced by colliding an electron beam with a thin foil target embedded in the plasma. Integration of positron production and acceleration in one stage is realized by a single relativistic, intense electron ...
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, cancer with energetic ...
A real-time measurement system of the spatial dose distribution is developed and realized for monitoring the bremsstrahlung flow generated on X-ray target by 5MeV 50kW electron accelerator. The sensors of the system consist of semiconductor diodes. The beam target and electron accelerator (ILU-10) are briefly ...
A 200 kV, 200 mA dc, deuterium ion accelerator has been constructed to evaluate high-temperature hydride materials such as scandium and erbium for use as targets in D--T neutron generators. The metal hydride film is deposited on a water-cooled, copper sub...
Results of experiments on proton acceleration from aluminum foils and organic films irradiated by laser pulses with intensities of up to 2 � 1019 W/cm2 are presented. To prevent thin targets from destruction by the superluminescence prepulse, a fast light shutter based on a Pockels cell was introduced in the amplifying system of the SOKOL-P ...
A proposal was developed for the construction of a 1000 GeV on 1000 GeV colliding beam facility at Fermi National Accelerator Laboratory. To achieve the same 2000-GeV center-of-mass energy with a fixed target accelerator would require a beam of more than ...
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 ...
The authors plan to build a BNCT facility based on electrostatic quadrupole (ESQ) accelerator technology. It is an experimentally-proven technology capable of delivering a high proton current for producing a neutron intensity greater than what is required for BNCT clinical trials. They also present a design of a lithium neutron-production ...
Multi-pulse radiographic accelerators, such as the DARHT-II facility under construction at Los Alamos National Laboratory, generate X-rays by striking a solid, high-Z ''bremsstrahlung converter target'' with a tightly focused, high-current, relativistic electron beam. In the process, the converter ...
The Holifield Radioactive Ion Beam Facility (HRIBF) is a national user facility for research with radioactive ion beams (RIBs) that has been in routine operation since 1996. It is located at Oak Ridge National Laboratory (ORNL) and operated by the ORNL Physics Division. The principal mission of the HRIBF is the production of high quality beams of ...
In 1992, the HHIRF became a project to develop a first-generation radioactive ion beam facility, the HRIBF, a national user facility for RIB research. Intense beams from ORIC will produce radioactive atoms as reaction products in thick targets using an ISOL-type target-ion source mounted on a 300-kV RIB injector. ...
The experimental program at the Fragment Mass Analyzer (FMA) at the ATLAS accelerator is well under way. Experiments have been carried out at the target position and at the focal plane. After a brief facility description, some recent experimental results are presented.
The extraction system of the National Accelerator Centre cyclotron in Pretoria has been modified to deliver high intensity deuteron beam currents for radiation therapy. A fast neutron field is generated via the d(16 MeV) + Be reaction on a thick target an...
The overall objective of the research was to set up facilities to generate transient magnetic fields in the megagauss range. The principal application envisaged was the eventual combination of megagauss targets with high energy accelerator beams to test f...
A program is proposed for upgrading the usefulness and attractiveness of ZGS polarized facilities to the user community. It is hoped that the advance approval or completion of parts (or all) of such a program will lead to an accelerated interest in propos...
This document comprises viewographs which describes the Fusion Materials Irradiation Test Facility (FMIT) and gives its schedule of completion. FMIT will approximate the neutron environment in fusion plants by means of deuterium ions accelerated to 35 MeV onto a liquid lithium target. (DLC)
The possibilities of electroproduction experiments at a facility such as the proposed European electron accelerator are discussed. Examples given are from studies of hadronization, color transparency, backward production, virtual Compton scattering and target spectator decay. Some conclusions about machine parameters are drawn. 25 ...
Photoproduction of(eta) and(eta)(prime) mesons has been studied at the Continuous Electron Beam Accelerator Facility (CEBAF) Large Acceptance Spectrometer (CLAS) using a tagged photon beam incident on a hydrogen target with photon energies from the respec...
Specific experiments and instrumentation and facility developments are discussed. The 12 UD Pelletron worked well and was utilized over 2900 hours as the time of beam on targets. The performance of the polarized ion source was good, and it produced the be...
A description is given of recent developments in the target facility at Argonne National Laboratory. Highlights include equipment upgrades which enables us to provide enhanced capabilities for support of the Argonne Heavy-Ion ATLAS Accelerator Project. Also future plans and additional equipment acquisitions will be discussed. 3 refs., ...
A description is given to some recent developments in the target facility at Argonne National Laboratory. Highlights include equipment upgrades which enable us to provide enhanced capabilities for support of the Argonne Heavy-Ion ATLAS Accelerator Program. Work currently in progress is described and future prospects discussed. 8 refs.
The Laboratory Microfusion Facility (LMF) is being planned to develop high-grain, high-yield (200 MJ-1000 MJ) ICF targets for applications to nuclear weapons effects simulation, thermonuclear weapons physics, and energy production. It is expected that a 1000-MJ yield will require {approximately}10--20 MJ input energy to the target. The ...
Approaches to develop targets for production of intense radioactive ion beams (RIBs) have been evaluated over the past five years. It is acknowledged that many desired physics objectives using RIBs can be met only by using production beams of energetic protons with currents up to 100 {mu}A. Such beams can be made available at future spallation neutron ...
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 ...
Particle accelerators are important tools for materials research and production. Advances in high-intensity linear accelerator technology make it possible to consider enhanced neutron sources for fusion material studies or as a source of spallation neutrons. Energy variability, uniformity of target dose distribution, ...
Targets must be injected into an IFE power plant with an accuracy of and plusmn; 5 mm at a rate of approximately 5 to 10 each second. Targets must be tracked very accurately to allow driver beams to be aligned with defined points on the targets with accuracy {+-}200{mu}m for indirect drive and {+-}20{mu}m for direct drive. An ...
... foil targets are ablatively accelerated by a multi-nanosecond Nd ... accelerating target. ... laser beam requirements for uniform ablative acceleration. ...
The planned rare isotope accelerator facility RIA in the US would become the most powerful radioactive beam facility in the world. RIA s driver accelerator will be a device capable of providing beams from protons to uranium at energies of at least 400MeV per nucleon, with beam power up to 400 kW. Radioactive beam ...
Development of a facility combining an isotope-separator-on-line (ISOL) with a post-accelerator, to produce energetic ion beams far from the valley of nuclear stability, was originally proposed for installation on one of the beam lines of the TRIUMF cyclotron about ten years ago. A test facility (TISOL) consisting of a ...
A new conceptual design for an accelerator-based boron neutron capture therapy (ABNCT) facility based on the high-current low-energy proton beam driven by the linear accelerator at SARAF (Soreq Applied Research Accelerator Facility) incident on a windowless forced-flow liquid-lithium ...
PubMed
An outline is given of the general problems of high-power targets used in particle accelerators with cw and pulsed beams for a variety of uses, such as neutron and radioactive particle production and in particular for pion production in neutrino factories. The question of heat dissipation and thermal shock with pulsed beams will be examined along with ...
Use of a high-power electron linac as the driver accelerator for a Radioactive Ion Beam (RIB) facility is proposed. An electron beam of 30MeV and 100kW can produce nearly 5�1013 fissions/s from an optimized 235U target and about 60% of this from a natural uranium target. An electron beam can be readily ...
We report the status of evaluating an accelerated and focused compact torus as a driver for ICF. We are studying the acceleration and focusing aspects experimentally in the RACE facility, a recently completed ring generator coupled to a 260 kJ acceleration bank. Compact torus and ICF target ...
In the last few years it has become apparent that the surface contamination on laser ion-acceleration targets is a major impediment to the acceleration of the actual target ions. To this end we have performed experiments at the Los Alamos Trident Laser facility using one arm of the Trident ...
... A i' A Method For Estimating Ta-,rget Acceleration And Its Use In ... V, 4. TITLF. (and Subtitle) METHOD FOR ESTIMATING TARGET ACCELERATION ...
The Programmatic Environmental Impact Statement for Tritium Supply and Recycling considers several methods for the production of tritium. One of these methods is the Accelerator Production of Tritium. This report summarizes the design characteristics of APT including the accelerator, target/blanket, tritium extraction ...
Development of conceptual approaches for targets to produce intense radioactive ion beams is needed in anticipation of activity for a next-generation, intense ISOL-type radioactive beams facility, strongly recommended in the NSAC 1995 Long Range Plan for Nuclear Science. The production of isotopes in vapor form for subsequent mass separation and ...
Numerical simulations are used to study acceleration of protons by intense laser pulses and the induced heating of a secondary target using this proton beam. Laser-plasma interaction and ion acceleration are modeled with a multidimensional, relativistic particle-in-cell code. Proton slowing-down and secondary ...
A facility for testing the effectiveness of high energy neutrons for the treatment of malignant tumors has been constructed at the Fermi National Accelerator Laboratory. The first neutrons were produced by the bombardment of 66-MeV protons on a beryllium target in July, 1975. After physically characterizing the neutron beam and ...
A beamline systems code, that is being developed for Accelerator-Driven Transmutation Technology (ADTT) facility trade studies, is described. The overall program is a joint Grumman, G. H. Gillespie Associates (GHGA) and Los Alamos National Laboratory effort. The GHGA Accelerator Systems Model (ASM) has been adopted as the framework on ...
For many years now, Los Alamos National Laboratory has been working to develop a conceptual design of a facility for accelerator production of tritium (API). The APT accelerator will produce high energy protons which will bombard a heavy metal target, resulting in the production of large numbers of spallation ...
The electron-to-positron conversion and acceleration system is described. It essentially consists of a 3 mm thick W-Re converter target immersed in a magnetic lens and placed in between both sections of a linear electron accelerator; it further comprises a long solenoid over the second linac section and a short coil to bridge the gap ...
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 physical understanding of the different ...
During the last couple of years the scientific activities at the former VICKSI [1] facility have been switched to applications of ion beam techniques in medicine, modification of materials, and materials analyses. The nuclear physics programmes were no longer supported. With the new activities, the requirements on the accelerator specifications, beam ...
A Fusion Materials Irradiation Test Facility is being designed to be constructed at Hanford, Washington, The system is designed to produce about 10/sup 15/n/cm-s in a volume of approx. 10 cc and 10/sup 14/ n/cm-s in a volume of 500 cc. The lithium and target systems are being developed and designed by HEDL while the 35-MeV, 100-mA cw ...
At Sandia National Laboratories we are assessing the response of fusion target materials to shock loading with the particle beam accelerators HYDRA and PROTO I and the gas gun facility. Nonlinear shock-accelerated unstable growth of fabrication irregularities has been demonstrated, and jetting is found to occur in ...
The accelerator production of tritium (APT) facility, with its high beam current and high beam energy, would be an ideal supplier of radioisotopes for medical research, imaging, and therapy. By-product radioisotopes will be produced in the APT window and target cooling systems and in the tungsten target through ...
The description of beams in RF and induction accelerators share many common features. Likewise, there is considerable commonality between electron induction accelerators (see Chap. 7) and ion induction accelerators. However, in contrast to electron induction accelerators, there are fewer ion induction ...
The question of whether a facility for fixed target physics should be provided at the SSC must be answered before the final technical design of the SSC can be completed, particularly if the eventual form of extraction would influence the magnet design. To this end, an enthusiastic group of experimentalists, theoreticians and ...
The original goal of this proposal was to study frozen spin polarized targets (HD target and other technologies) and produce a conceptual design report for the implementation of such a target in the HALL B detector of the Thomas Jefferson National Accelerator Facility (JLab). During the first ...
Large particle accelerators are proposed as drivers for new ways to produce electricity from nuclear fusion and fission reactions. The accelerators must be designed to deliver large particle beam currents to a target facility with very little beam spill along the accelerator itself, in order ...
Investigations are underway to determine the concept feasibility and design criteria for an intense-neutron-source facility using a supersonic-jet target. This target consists of an expansion nozzle where deuterium gas is accelerated to supersonic velocities and an interaction region where a tritium-ion beam ...
Within the last few years, there have also appeared in the Heavy-Ion Fusion literature several studies of targets which have outer tampers. One-dimensional simulations indicate higher target gains with a judicious amount of tamping. But for these targets, a full investigation has not been carried through in regards to conservative ...
The DRAGON facility at TRIUMF/ISAC detects reaction products following radiative capture of a hydrogen or helium target nucleus by an accelerated heavy ion. Capture reactions of interest in nuclear astrophysics may have reaction rates 10 14 orders of magnitude lower than the intensity of the incident beam: as well as efficiently ...
... Tracking of constant- velocity targets and stationary target localization are spe- cial cases of constant-acceleration target tracking. ...
A new polarized 3He target has been developed for nuclear physics experiments utilizing the High Intensity Gamma Source (HI?S) at the Duke Free Electron Laser Laboratory (DFELL). This target is designed for a broad program of physics employing high intensity polarized photons and a polarized 3He target as an effective polarized neutron ...
Abstract - The Spallation Neutron Source (SNS) is a proton accelerator facility that generates neutrons for scientific researchers by spallation of neutrons from a mercury target. The SNS became operational on April 28, 2006, with first beam on target at approximately 200 W. The SNS ...
Abstract - The SNS is a proton accelerator facility that generates neutrons for scientific researchers by spallation of neutrons from a mercury target. The SNS became operational on April 28, 2006 with first beam on target at approximately 200 watts. The SNS accelerator, ...
CSR, a new Cooler-Storage-Ring project, is the post-acceleration system of the Heavy Ion Research Facility in Lanzhou (HIRFL). It consists of a main ring (CSRm) and an experimental ring (CSRe). From the HIRFL cyclotron system the heavy ions will be accumulated, cooled and accelerated in the CSRm, then extracted fast and injected into ...
... similar to that used for radar) to accelerate electrons in a part of the accelerator called the "wave guide," then allows these electrons to collide with a heavy metal target. As ...
MedlinePLUS
... warfare, joint planning, national and international ... ACCELERATORS, LINEAR ACCELERATORS, PARTICLE ACCELERATOR TARGETS ...
... Title : 10-MEV ROTATING TARGET LINEAR ACCELERATOR FOR RADIOGRAPHY OF LARGE ROCKET MOTORS. Corporate Author : ...
... Title : 10 MEV ROTATING TARGET LINEAR ACCELERATOR FOR RADIOGRAPHY OF LARGE ROCKET MOTORS. Corporate ...
Inertial fusion energy research has enjoyed increased interest and funding. This has allowed expanded programs in target design, target fabrication, fusion chamber research, target injection and tracking, and accelerator research. The target design effort examines ways to minimize the beam ...
The Spallation Neutron Source (SNS) will be an accelerator-based facility in Oak Ridge, TN, delivering pulsed neutron beams to experimenters. Negative hydrogen ion-beams are generated and pre-accelerated in a 2.5-MeV linac injector, or front end (FE), accelerated to 1 GeV energy by a linear ...
The Holifield Heavy Ion Research Facility (HHIRF) typifies a new generation of heavy ion accelerators capable of producing high resolution beams with sufficient energy to study nuclear reactions across the periodic table. Exploiting the capabilities of the machine depends on the availability of thin foils at each stage of the experimental process. Rugged ...
The aim of the EXCYT (EXotics with CYclotron and Tandem) facility is the production and acceleration of radioactive ion beams (RIBs). A primary beam provided by the K-800 superconducting cyclotron will produce, in a target-ion source complex (TIS), the required nuclear species which can be used for low energy experiments (up to 300 ...
The proton beam target of an accelerator-driven transmutation facility can be designed as a vertical liquid lead column. To prevent lead vapor from entering the accelerator vacuum, a proton-beam window has to separate the area above the lead surface from the accelerator tube. Two ...
A description is given of the radioactive ion beam facility, SIRIUS, proposed to be built at ISIS, the world leading pulsed neutron source. Up to 100 {mu}A of 800 MeV protons from the ISIS synchrotron will be taken down a new beam line into a target station complex where radioactive nuclei will be formed as a result of the interaction with the ...
This document is a report on our activities in FY03 exploring nuclear safety and hazard analysis issues relevant to the Rare Isotope Accelerator (RIA). It is not clear whether DOE will classify the RIA as an accelerator facility subject to the accelerator-specific safety requirements of DOE Order 420.2A or as a ...
... Title : Experimental Evaluation of Track Accelerator ... a full scale accelerator which would ... Subject Categories : TEST FACILITIES, EQUIPMENT AND ...
... conducted on accelerator facilities, involving zero ... of similar exposures on accelerators. ... IMPACT ACCELERATION, EXPERIMENTAL DATA, HIGH ...
A Proposal for a future Radioactive Beams Facility has been developed based on ISIS, the world's brightest pulsed neutron source. Radioactive ions are produced by the spallation process driven by a 100 {mu}A, 800 MeV proton beam delivered from the ISIS synchrotron accelerator. This is ten times more powerful than currently available in the world ...
Radioactive ion beams are produced at INFN- Laboratori Nazionali del Sud (LNS) by means of the two operating accelerators, the Tandem and the Superconducting Cyclotron (CS), originally designed to accelerate stable beams. Both the ISOL (Isotope Separation On Line) and the IFF (In-Flight Fragmentation) methods are exploited to produce RIBs in two different ...
... Study of the Requirements for an Acceleration Facility for Bio-Engineering Research and the Feasibility of Establishing Such in the Atlanta Area. ...
... BEAMS, BREMSSTRAHLUNG, GAMMA RAY SPECTROSCOPY, PARTICLE ACCELERATOR COMPONENTS, LINEAR ACCELERATORS. ...
Construction has begun on ISAC, a radioactive ion beam (RIB) and accelerator facility that utilizes the ISOL (on-line isotope separation) production method. A five-year budget for this new radioactive beam facility at TRIUMF was approved in June 1995. ISAC includes: a new building with 5000 m2 of floor space, a beam line with adequate ...
... Descriptors : *LINEAR ACCELERATORS, *ELECTRON ACCELERATORS, AIR FORCE RESEARCH, TEST FACILITIES, ELECTRON BEAMS ...
Accelerator-based neutron sources are an attractive alternative to nuclear reactors for providing epithermal neutron beams for Boron Neutron Capture Therapy. Based on clinical requirements and neutronics modeling the use of proton and deuteron induced reactions in {sup 7}Li and {sup 9}Be targets has been compared. Excellent epithermal neutron beams can be ...
The Clinton P. Anderson Meson Physics Facility (LAMPF) is a linear proton accelerator operating at 800 MeV and 1.0 mA. It has been operating at substantial power levels since February of 1976. This paper will outline the problems encountered with the original target-cell components, some of the repairs required since, and specifically ...
We have modified the single pulse target experimental facility[1] on the Experimental Test Accelerator II (ETAII) to perform the double pulse target experiments to validate the DARHT-II[2, 3] multi-pulse target concept. The 1.15 MeV, 2 kA Snowtron injector will provide the first electron pulse. ...
The aim of the EXCYT project (EXotics with CYclotron and Tandem) is the development of a facility for producing and accelerating exotic beams from 0.2 up to 8 MeV/amu. EXCYT is based on the ``two accelerators'' method. A K = 800 Superconducting Cyclolron (CS), axially injected by the ECR ion source SERSE, will deliver the primary beam. ...
This Report includes copies of transparencies and notes from the presentations made at the Center for Accelerator Physics at Brookhaven National Laboratory. Editing and changes to the authors` contributions in this Report were made only to fulfill the publication requirements. This volume includes notes and transparencies on eight presentations: ``Application of ...
The interaction of shock waves with inhomogeneous media is important in many astrophysical phenomena. Modelling these phenomena in the laboratory yields additional information to improve both simulations and the interpretation of astrophysical observations. Scaled experiments using magnetically accelerated flyers impacting on low density foam targets have ...
Hybrid reactors (Accelerator Driven Sub-critical Systems, ADS), coupling an accelerator with a target and a sub-critical reactor, could simultaneously burn minor actinides and transmute long-lived fission products, while producing a consistent amount of electrical energy. A group of Italian research and development (R&D) ...
A 22-Mev electron accelerator was used in a facility to produce nearly monoenergetic photons at 1O to l7 Mev. The photoas were produced from the annihilation in flight of positrons. The positrons were created at the end of the first section of the accelerator by irradiation of a thick tantalum target with ...
The TRiga Accelerator-Driven Experiment (TRADE), to be performed in the TRIGA reactor of the ENEA-Casaccia Centre in Italy, consists of the coupling of an external proton accelerator to a target to be installed in the central channel of the reactor scrammed to subcriticality. This pilot experiment, aimed at a global demonstration of ...
A novel numerical modeling of field ionization in PIC (Particle In Cell) codes is presented. Based on the quasistatic approximation of the ADK (Ammosov Delone Krainov) theory and implemented through a Monte Carlo scheme, this model allows for multiple ionization processes. Two-dimensional PIC simulations are performed to analyze the cut-off energies of the laser-accelerated ...
The author has investigated the use of the inverse square function to predict the photon dose rate outside primary barriers for medical accelerators. Measurements of the dose rate as a function of distance outside the barriers were made at five medical accelerator facilities. An analysis of the data showed that the radiation field ...
The next generation of accelerators for MegaWatt proton, electron and heavy-ion beams puts unprecedented requirements on the accuracy of particle production predictions, the capability and reliability of the codes used in planning new accelerator facilities and experiments, the design of machine, target and ...
The Spallation Neutron Source (SNS) is a Department of Energy, accelerator-based neutron source proposed for construction at the Oak Ridge National Laboratory. The project is currently nearing the end of the conceptual design stage. The objective of the target facility is to provide beams of pulsed thermal and sub-thermal neutrons for ...
Because of the lack of a free neutron target, deuterium targets have been used extensively in studying the neutron structure. The unique spin structure of the {sup 3}He ground state wave function and the recent developments in laser technologies made polarized {sup 3}He targets widely used in many experiments from neutron ...
Pilot innovative facility for neutron capture therapy was built at Budker Institute of Nuclear Physics, Novosibirsk. This facility is based on a compact vacuum insulation tandem accelerator designed to produce proton current up to 10 mA. Epithermal neutrons are proposed to be generated by 1.915 MeV protons bombarding a lithium ...
Innovative facility for neutron capture therapy has been built at BINP. This facility is based on compact vacuum insulation tandem accelerator designed to produce proton current up to 10mA. Epithermal neutrons are proposed to be generated by 1.915-2.5MeV protons bombarding a lithium target using (7)Li(p,n)(7)Be ...
In support of the Accelerator Production of Tritium (APT) project, safety analyses for the blanket system have been performed based on the conceptual design for the Target/Blanket (T/B) Facility. During mitigated event sequences safety engineered features, such as the residual heat removal (RHR) and cavity flood systems, provide ...
The technologies that are being utilized to design and build the target systems for a state-of-the-art accelerator- based neutron source, the Spallation Neutron Source (SNS), are discussed. Emphasis is given to the technology issues that present the greatest challenges. The present facility configuration, ongoing analysis, and ...
A system of interchangeable targetry on rail transporters has been in use for four years. This design concept allows rapid interchange of radioactive target equipment with a minimum of exposure to operating personnel. Separate maintenance facilities equipped with a variety of remote handling equipment, including a mobile electric master-slave ...
In July 1986, an AMS radiocarbon target preparation laboratory was established at the Woods Hole Oceanographic Institution to produce graphite to be analyzed at the NSF-Accelerator Facility for Radioisotope Analysis at the University of Arizona (Tucson). ...
Advanced exotic beam facilities that are currently being developed will use powerful driver accelerator for the production of short-lived rare isotopes. Multi-beam-drivers capable of producing high power beams from very light to very heavy ions are now technically feasible. A challenge for such facilities is the development of ...
The status of a unique 2.0 MeV, 10 mA proton tandem accelerator with vacuum insulation is presented. The accelerator is intended to be used in facilities generating resonant gamma rays for explosives detection and epithermal neutrons for boron neutron-capture therapy of brain tumors. A magnetically coupled DC voltage multiplier derived ...
what will be needed to diagnose fusion experiments at the National Ignition Facility at Lawrence subjected to massive acceleration. Trident has just become a national user facility, opening its doors Livermore National Laboratory. Prepare that foil target in a slightly different way and the Trident laser
In a series of experiments at LANSCE's WNR facility, 148Gdp roduction was measured for 600- and 800-MeV protons on tungsten, tantalum, and gold. These experiments used 3 pm thin W, Ta, and Au foils and 10 pm thin A1 activation foils, Spallation yields were determined for many short-lived and long-lived spallation products with these foils using gamma and alpha ...
At Brookhaven National Laboratory (BNL) two existing facilities, the Tandem Van de Graaff machines and the AGS have been joined by a beam transfer line, and modified to permit acceleration of light ions (up to sulfur) to energies of 14.6 GeV/amu. Light ions supplied by a pulsed ion source are accelerated by the Tandem to an energy of ...
The Ground Test Accelerator (GTA) under construction at the Los Alamos National Laboratory is part of the Neutral Particle Beam Program supported by the Strategic Defense Initiative Office. The GTA is a full-sized test facility to evaluate the feasibility of using a negative ion accelerator to produce a neutral particle beam (NPB). The ...
An innovative accelerator-based neutron source for BNCT has just started operation at the Budker Institute of Nuclear Physics, Novosibirsk. One of the main elements of the facility is a lithium target producing neutrons via the threshold (7)Li(p,n)(7)Be reaction at 25 kW proton beam with energies of 1.915 MeV or 2.5 MeV. The design of ...
In a series of experiments at LANSCE's WNR facility, {sup 148}Gd production was measured for 600- and 800-MeV protons on tungsten, tantalum, and gold. These experiments used 3 {mu}m thin W, Ta, and Au foils and 10 {mu}m thin Al activation foils. Gadolinium spallation yields were determined from these foils using alpha spectroscopy and compared with the LANL codes ...
The next generation of radiographic machines based on induction accelerators require very high brightness electron beams to realize the desired x-ray spot size and intensity. This high brightness must be maintained throughout the beam transport, from source to x-ray converter target. The accelerator for the second-axis of the Dual Axis ...
Although a number of methods have been developed for depositing films of production target materials onto surfaces with thickness commensurate with fast diffusion release of short-lived radioactive species for Isotope Separator On-Line (ISOL) target applications, the methods are either inappropriate for coating interior surfaces of highly permeable ...
A review is presented of polarized target development for the ZGS at Argonne and for the Fermilab accelerator. (GHT)
A review is presented of polarized target development for the ZGS at Argonne and for the Fermilab accelerator. (ERA citation 05:016377)
This report describes the development and testing of a deuterium gas target intended for use at a low-energy accelerator facility to produce neutrons for basic research and various nuclear applications. The principle source reaction is H-2(d,n)He-3. It produces a nearly mono-energetic group of neutrons. However, a lower-energy ...
A conceptual design development of an accelerator-driven subcritical facility has been carried out in the preparation of a joint activity with Kharkov Institute of Physics and Technology of Ukraine. The main functions of the facility are the medical isotope production and the support of the Ukraine nuclear industry. An electron ...
HIRFL-CSR, a new cooler-storage-ring project, is the post-acceleration system of the Heavy Ion Research Facility in Lanzhou (HIRFL) consisting of a main ring (CSRm) and an experimental ring (CSRe). The construction of the HIRFL-CSR complex is nearing completion. The stored beam in the CSRm has been observed. Recently, the stored beam was ...
The Munich Accelerator for Fission Fragments (MAFF) facility planned at the research reactor FRM-II in Munich is dedicated to produce, cool and accelerate high-intensity neutron-rich radioactive beams. The radioactive beam of fission fragments results from bombarding a uranium target by the thermal neutrons ...
The SNS is an accelerator based neutron source in Oak Ridge, Tennessee. This unique facility provides the most intense pulsed neutron beams in the world, which are produced by bombarding a mercury target with energetic protons from a large accelerator complex. A high intense pulsed proton beam traveling through the ...
The Office of Science of the Department of Energy is currently considering options for an advanced radioactive beam facility in the U.S which is a reduced scale version of the Rare Isotope Accelerator (RIA) project [1,2]. This facility will have unique capabilities compared with others both existing and planned elsewhere. As envisioned ...
... well with target rear surface ... ENERGY TRANSFER, *LASER BEAMS, ABLATION ... ACCELERATION, NEODYMIUM LASERS, TARGETS, EQUATIONS ...
ANKE is a new experimental facility for the spectroscopy of products from proton-induced reactions on internal targets. It has recently been implemented in the accelerator ring of the cooler synchrotron COSY of the Forschungszentrum J�lich (FZ-J�lich), Germany. The device consists of three dipole magnets, various ...
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 capture. Materials used in the ...
A double-target technique is used to measure the uniformity with which laser irradiated thin foil targets are ablatively accelerated. Studies of the effects of laser nonuniformities on the target acceleration reveal an increase in smoothing (symmetrizatio...
We present the results of experiments on the interaction of laser radiation with low-density porous targets performed on the ABC facility at the ENEA Research Centre (Frascati, Italy). Porous plastic targets with densities of 5 and 20 mg cm{sup -3} were irradiated by a focused neodymium-laser beam at the fundamental frequency ({lambda} ...
