An accelerator-driven spallation neutron-source target/blanket system has been developed for the production of tritium. The system employs a proton linear accelerator, and a lead neutron-producing target, surrounded by tritium-producing blankets based on ...
National Technical Information Service (NTIS)
Project is based on a modified Highly Accelerated Life Test (HALT), a process in which products are subjected to accelerated environments to ...
NASA Website
The CET for the lead-free solder project is based on a modified Highly Accelerated Life. Test (HALT), a process in which products are subjected to ...
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...
... PARTICLE ACCELERATORS, *TRITIUM, *PRODUCTION ENGINEERING, FEASIBILITY STUDIES, PARTICLE ACCELERATOR TARGETS, HELIUM ...
DTIC Science & Technology
The accelerator tubes are essential components of the accelerator. Their function is to transport and accelerate a very intense proton or deuteron beam through the machine, from the ion source to the neutron production target, without significant losses. In this contribution, we discuss materials selected for the ...
PubMed
The primary goal of the program is to develop the necessary scientific and engineering base for accelerated development of the powder fabrication route as a technologically and economically attractive means of materials production. Primary areas of study ...
Recent development work conducted at Brookhaven National Laboratory on technologies which use particle accelerator-driven targets is summarized. These efforts include development of the Spallation-Induced Lithium Conversion (SILC) Target for the Accelerator Production of Tritium (APT), the Accelerator-Driven ...
Energy Citations Database
DOE Information Bridge
... based modeling of life-limited components in ... of the Center for Accelerated Maturation of ... Close and highly productive collaborations among the PIs ...
Shortages of {sup 99}Mo, the most commonly used diagnostic medical isotope, have caused great concern and have prompted numerous suggestions for alternate production methods. A wide variety of accelerator-based approaches have been suggested. In this paper we survey and compare the various accelerator-based approaches.
We propose an accelerator complex TRICYC for production of medical isotopes and for other applied purposes. The basic facility of the complex is a TRITRON type accelerator, which has advantages that make it competitive with currently operating cyclotrons ...
The Combined Environments Test (CET) was based on a modified Highly Accelerated Life Test. (HALT), a process in which products are subjected to accelerated ...
We describe work on the design of a diffraction grating which we intend to use for studying the production of Smith-Purcell radiation and the acceleration of electrons. We have developed computer codes based on the solution of the appropriate Maxwell's eq...
The possibility of using a neutron generator on the base of a cyclic deuteron accelerator for production of transplutonium elements (TPE), namely Cm, Bk and Cf is studied. Calculations of the TPE accumulation process when using the deuteron beam at the en...
Testing? " Based on modified Highly Accelerated Life Test (HALT). Goal: Quickly break products and learn from the failure modes ...
Jul 14, 2006 ... The Combined Environments Test (CET) was based on a modified Highly Accelerated Life Test. (HALT), a process in which products are subjected ...
... Also, the impact of shared memory architectures in HPEC ... in products targeted at the general HPC market...such as FPGA-based accelerators ...
... cost of accelerators needed for a production base ... by electron accel- erators below energy levels of ... two individuals by pouring hot water directly into ...
This report provides background information for a series of reports documenting accident scenario simulations for the Accelerator Production of Tritium blanket heat removal systems.
An accelerator-based BNCT facility is under construction at the Berkeley Lab. An electrostatic-quadrupole (ESQ) accelerator is under development for the production of neutrons via the (sup 7)Li(p,n)(sup 7)Be reaction at proton energies between 2.3 and 2.5...
Two companion papers at this meeting have introduced the subject of high intensity linacs for materials research and for radioactive waste transmutation; Prof. Kaneko's paper Intense Proton Accelerator,'' and my paper Accelerator-Based Intense Neutron Source for Materials R D.'' I will expand on those ...
Theoretical investigations of plasma-based accelerators and other advanced accelerator concepts. The focus of the work was on the development of plasma based and structure based accelerating concepts, including laser-plasma, plasma channel, and microwave driven plasma ...
Hardware acceleration exploits the parallelism inherent in large circuit simulations to achieve significant increases in performance. Simulation accelerators have been developed based on the compiled code algorithm or the event-driven algorithm. The greater flexibility of the event-driven algorithm has resulted in several important ...
The role of proton accelerators (i.e. cyclotrons) in the production of medical radionuclides is increasing as a result of new trends in medical research and due to clinical needs associated with the expanding field of positron emission tomography (PET). Accelerators also produced radionuclides needed in single photon emission ...
NASA Astrophysics Data System (ADS)
We propose an efficient method of accelerating macroparticles to high velocities, which employs pressure of the plasma produced by a focused pulsed high-power laser beam inside a cavity-type target. That is why we have called it the cavity pressure acceleration (CPA) scheme. The method was tested during our experiments at the Prague Asterix Laser System, ...
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 applications, including: (a) spallation-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 ...
In the summer of 1989, a collaboration between Los Alamos National Laboratory and Brookhaven National Laboratory conducted a study to establish a reference design of a facility for accelerator production of tritium (APT). The APT concept is that of a neutron-spallation source, which is based on the use of high-energy protons to bombard ...
Production delays for the 2009 H1N1 pandemic vaccine using the current egg-based production technology heightened interest in alternative technologies that could expand the supply or accelerate the availability of influenza vaccine. Within the federal gov...
An attempt to correlate the data on multiple production both in the accelerator region and in the region of ultrahigh energies within a unique picture, based on the quark-gluon model of the hadron, leads to the conclusion about the composite structure of ...
Neutral beam systems based on negative ions have been considered because of a high expected power efficiency. Methods for the production, acceleration and neutralization of negative ions will be reviewed and possibilities for an application in neutral beam lines explored.
The Idaho National Engineering Laboratory (INEL) has been investigating the feasibility of a concept for an accelerator-based source of epithermal neutrons for BNCT that is based on the use of a two-stage photoneutron production process driven by an elect...
A cosmic acceleration mechanism is introduced which is based on the wakefields excited by the Alfven shocks in a relativistically flowing plasma. We show that there exists a threshold condition for transparency below which the accelerating particle is collision-free and suffers little energy loss in the plasma medium. The stochastic ...
... Development of a linear accelerator for production of a bunched ... This accelerator was ... Calibration of an analyzing magnet intended to produce, by ...
... OF NUCLEAR REACTORS ON ELECTRON ... equations of reactor acceleration; solution of ... ELECTRIC POWER PRODUCTION, REACTOR KINETICS ...
... Title : AN ACCELERATED METHOD FOR MOISTURE DETERMINATION IN MEAT PRODUCTS AND MEDICAL PREPARATIONS. ...
Tritium contamination reduction in small ion accelerators for neutron production, discussing pumping
NASA Technical Reports Server (NTRS)
This paper reviews the experimental progress made towards plasma-based accelerators since the last Advanced Accelerator Concepts Workshop at Lake Geneva in June, 1994. It has been a very productive two years, with many new experimental results from all over the world. The latest results from the Plasma Beat Wave, ...
This study compares the commercially available emulation hardware platforms with respect to user productivity, accuracy in multi-core processor architectures, and emulation performance. We also study the emerging FPGA-based emulation acceleration strategi...
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 ...
A review was presented of operating, planned and high energy accelerators under construction in the US. It was pointed out that the program is broad based, addressing a variety of frontiers and encompassing many of most fruitful projectiles, intensities, and energy ranges. The US program is also geographically diversified across the country in major ...
... ACCELERATION TOLERANCE, COMPUTER PROGRAMS, DATA BASES, MATHEMATICAL MODELS, STATISTICAL INFERENCE, LOADS ...
Tables for acceleration terminology equivalents based on human and vehicle angular and linear motion
A conceptual design was developed for the target/blanket system of an accelerator-based system to produce tritium. The target/blanket system uses clad tungsten rods for a spallation target and clad lead rods as a neutron multiplier in a blanket surrounding the target. The neutrons produce tritium in {sup 3}He, which is contained in aluminum tubes located in the decoupler and ...
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 neutron ...
A 2 MeV proton tandem accelerator with vacuum insulation was developed and first experiments are carried out in the Budker Institute of Nuclear Physics (Novosibirsk). The accelerator is designed for neutron production via reaction (7)Li(p,n)(7)Be for the boron neutron-capture therapy of the brain tumors, and for explosive detection ...
A 2 MeV proton tandem accelerator with vacuum insulation was developed and first experiments are carried out in the Budker Institute of Nuclear Physics (Novosibirsk). The accelerator is designed for neutron production via reaction 7Li(p,n)7Be for the boron neutron-capture therapy of the brain tumors, and for explosive detection ...
The Advanced Photon Source (APS) at Argonne in collaboration with the University of Illinois at Chicago and the University of Wisconsin at Madison is developing a new millimeter wavelength, 50-MeV electron linear accelerator system for production of coherent tunable wavelength synchrotron radiation. Modern micromachining techniques ...
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 ...
E-print Network
The concept involves the use of spallation neutrons produced by interaction of a high energy proton (1 to 2 GeV) from a linear accelerator (LINAC) with a heavy metal target (uranium). The principal spallator concept is based on generating fissile fuel for use in LWR nuclear power plants. The spallator functions in conjunction with a reprocessing plant to ...
The Low Energy Demonstration Accelerator (LEDA) being constructed at Los Alamos National Laboratory will serve as the prototype for the low energy section of Acceleration Production of Tritium (APT) accelerator. This paper addresses the problem of the LLRF control system for LEDA. The authors propose a control law ...
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 physics programs around the world. A ...
The conceptual design of a variable-phase asynchronous cyclotron (VPAC) is described, which provides longitudinal bunch compression of accelerated proton or ion beams, and thus, permits high current acceleration at higher accelerator efficiency, where the possible beam losses are minimized and the accelerator's ...
Applications of positive and negative hydrogen and deuterium ion accelerators beyond basic research are increasing. Large scale proposed national laboratory/industrial projects include the Accelerator Production of Tritium (APT) which will utilize protons, and the International Fusion Material Irradiation Facility (IFMIF) which will ...
