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...

This document presents our proposal to continue the activities of Boston University researchers in high energy physics research. We have a broad program of participation in both non-accelerator and accelerator-based efforts. High energy research at Boston...

Atomic Physics research with beams from accelerators has continued to expand and the number of papers and articles at meetings and in journals reflects a steadily increasing interest and an increasing support from various funding agencies. An attempt will...

... Abstract : A recursive relationship was developed, based upon the Schapery single-integral equation, which allows approximation of a continuous ...

The standard Q values are based on the most detrimental chronic biological effect (e.g., carcinogenesis by neutrons) for continuous low-dose exposure that ...

... A recursive relationship is developed, based upon the Schapery single-integral equation, which allows approximation of a continuous time-varying ...

A large-area electron accelerator based on filament cathodes that operates in a continuous mode is described. The results of calculations of electron-optical systems of triode- and tetrode-type accelerators in accordance with the proposed engineering approach are considered, and experimental and calculated ...

A comprehensive EOR project data base that is validated, integrated, and continuously maintained and updated is being developed at BETC. The data base, which is not currently available to the public, provides an information resource to accelerate the adva...

A continuing problem at many laboratories is the training of new operators in the arcane technology of particle accelerators. Presently most of this training occurs 'on the job,' under a mentor. Such training is expensive, and while it provides operational experience, it is frequently lax in providing the physics background needed to ...

This is an overview of plasma accelerators. It is not intended to be a detailed review of the field. [See E. Esarey {ital et al.}(1) for a nice recent review, numerous recent articles in Physical Review Letters, and excellent contributions to these proceedings for a relatively complete update on the latest state of current research.] Rather, the intent of this overview is to ...

This is an overview of plasma accelerators. It is not intended to be a detailed review of the field. [See E. Esarey et al.(1) for a nice recent review, numerous recent articles in Physical Review Letters, and excellent contributions to these proceedings for a relatively complete update on the latest state of current research.] Rather, the intent of this overview is to review ...

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 ...

Continuous, hyperfractionated, accelerated radiotherapy (CHART) was devised to give the maximum chance of improving clinical radiotherapy and was based upon available radiobiological evidence. A pilot study, begun in 1985, has now included 210 patients. When comparison is made with previously treated cases, improved results have been ...

Because of the safer and more reliable mode of operation, a Superconducting Linac is proposed here as the proton beam accelerator which drives a nuclear plant based on the concept of the Energy Amplifier. The accelerator has also high electric power efficiency. An example based on the net generation of 400 MW ...

In February 2000, the International Committee for Future Accelerators initiated a study of a new model for international collaboration on a future large accelerator project, the Global Accelerator Network. The study is based on a model of a facility, which is remote from most of the collaborating institutions. It ...

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 ...

OAK B204 Program for Plasma-Based Concepts for Future High Energy Accelerators. The progress made under this program in the period since November 15, 2002 is reflected in this report. The main activities for this period were to conduct the first run of the E-164 high-gradient wakefield experiment at SLAC, to prepare for run 2 and to ...

Constant and variable spring supports are used to support the deadweight of piping systems. They are not designed to support pipe seismic loads. They are, however, subject to the base structure accelerations during a seismic event and must continue to sup...

Centrifuges will continue to serve as a valuable research tool in gaining an understanding of the biological significance of the inertial acceleration due to gravity. Space- and possibly lunar-based centrifuges will play a significant and enabling role wi...

The Machine Control Center (MCC) at Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF) was initially constructed in the early 1990s and based on proven technology of that era. Through our experience over the last 15 years and in our pla...

We discuss a new model to study alternating-phase focusing (APF). Our approach is based on representing the accelerating electric field with a continuous phase modulated traveling wave. The resulting nonlinear equations of motion can be solved analyticall...

silver grains is augmented and made electri- cally continuous by electroless deposition of silver film using a commercial slide maker; (iii) development of the exposed film; (iv) electroless deposition-based photographic film. The pattern of silver particles in the developed photographic film, after electroless

Accelerator technology has made enormous impact across a wide field of research, industrial, and commercial endeavor and new developments are projected to broaden this technology transfer and open up new applications not previously possible or economically attractive. At the same time, however, the broad multi-agency base of support for the development of ...

Historically, progress in high-energy physics has largely been determined by development of more capable particle accelerators. This trend continues today with the imminent commissioning of the Large Hadron Collider at CERN, and the worldwide development effort toward the International Linear Collider. Looking ahead, there are two scientific areas ripe for ...

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 ...

This paper reports on the feasibility study of a proton Super-Conducting Linac as the driver for an Accelerator-based Continuous Neutron Source (ACNS) [1] to be located at Brookhaven National Laboratory (BNL). The Linac is to be operated in the Continuous Wave (CW) mode to produce an average 10 MW of beam power. The Linac beam energy ...

Over the last sixty years the applications of ion beam accelerators has grown from basic nuclear structure research to the manufacture, preservation, and development of a large number of products which directly affect every day life. In addition, ion beam accelerators continue to provide a unique contribution in both basic and applied ...

An original method called the three-cubic method is proposed to generate online robot joint trajectories interpolating given position points with associated velocities. The method is based on an acceleration profile composed of three cubic polynomial segments, which ensure a zero acceleration at each intermediate point. Velocity and ...

Fixed-Field Alternating-Gradient (FFAG) accelerators are being proposed as an alternative to Super-conducting Linacs (SCL), Rapid-Cycling Synchrotrons (RCS) and Cyclotrons for the acceleration of very intense Heavy-Ion and Proton beams in the medium energy range. One application is the acceleration of ions of Uranium-238 to an energy ...

... 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

is to qualitatively assess how prone are these "new" material to experiencing degradation of their advantageous-based material irradiation experience continues to provide the baseline for the new studies for longTarget Material Irradiation Studies for High-Intensity Accelerator Beams N. Simos1* , H. Kirk1 , H

We have developed a quasianamorphic optical tomography system coupled to a streak camera to provide continuous recording of the electron beam profile of an intense, long-pulse induction accelerator. A tomographic reconstruction method based on a maximum-entropy algorithm is used to reconstruct the images. The system has simplified the ...

A new technique is developed for the formal solution of nondegenerate or degenerate Hamiltonian systems under periodic perturbation through continually accelerated elimination of the periodic terms. Special features of the method are the ability to eliminate both short-period and long-period variables simultaneously and the attainment of (formal) ...

The continuing need for accelerators of increasingly sophisticated characteristics requires a great variety of rf sources to provide the energy used by these accelerators. The present status of gridded tubes will be reviewed briefly. Klystrons, which are used in most large accelerators, will be considered in some ...

The Low Energy Demonstration Accelerator (LEDA) being constructed at Los Alamos National Laboratory will serve as the prototype for the low energy section of the Acceleration Production of Tritium (APT) accelerator. The first LEDA RF system includes three, 1.2 MW, 350 MHz, continuous wave, klystrons driving a radio ...

A continuing problem at many laboratories is the training of new operators in the arcane technology of particle accelerators. Presently most of this training occurs {open_quotes}on the job,{close_quotes} under a mentor. Such training is expensive, and while it provides operational experience, it is frequently lax in providing the physics background needed ...

Results from research on student understanding of velocity and acceleration have been used to guide the development of a conceptual approach to teaching kinematics. The authors describe how instruction based on the observation of actual motions can help students: (1) develop a qualitative understanding of velocity as a continuously ...

Radiation curing with electron accelerators is a growing high technology application in the wire and cable industry. They are used with voltages ranging from 500,000 up to 3,000,000 electron volts. Furthermore new machines are available up to 5.0 MeV. These industrial machines are high powered accelerators which operate continuously ...

We recently introduced the concept of ''k-essence'' as a dynamical solution for explaining naturally why the universe has entered an epoch of accelerated expansion at a late stage of its evolution. The solution avoids fine-tuning of parameters and anthropic arguments. Instead, k-essence is based on the idea of a ...

... KEY WORDS (Continue an reverse aide linscesay~ and identify by block numnber) Acceleration Minimum speed * Automatic transmission Throttle ...

A version of accelerating complex for high energy heavy ions is proposed on the base of a heavy ion collective accelerator. Considerations are presented as to the construction of the complex which is capable of accelerating uranium atoms up to 250 MeV/nuc...

Controversy continues unabated concerning the detection of signatures of merging at low altitudes. One phenomenon required by nearly all models of merging is the acceleration of ions in the merging region by about the Alfven velocity. The authors report the observation of spatially discrete patches of precipitating accelerated ions at ...

Atomic Physics research with beams from accelerators has continued to expand and the number of papers and articles at meetings and in journals reflects a steadily increasing interest and an increasing support from various funding agencies. An attempt will be made to point out where interdisciplinary benefits have occurred, and where applications of the new ...

Accelerating clinical improvement is a unique strategic method for accelerating the rate and effectiveness of improvements in strategically important clinical services. It promotes real reduction in the cost of service while preserving the quality and value within the system. Based on the components of process, value, benchmarking, ...

Computational science research components were vital parts of the SciDAC-1 accelerator project and are continuing to play a critical role in newly-funded SciDAC-2 accelerator project, the Community Petascale Project for Accelerator Science and Simulation (ComPASS). Recent advances and achievements in the area of ...

This patent describes an apparatus for controlling a continuously variable transmission. The apparatus includes a desired engine speed setting means for setting the desired engine speed as a function of running parameter and control means for controlling a continuously variable transmission such that an actual engine speed becomes a desired engine speed, ...

The Continuous Electron Beam Accelerator Facility at Jefferson Lab in Newport News, Virginia, was the first large-scale deployment of superconducting radiofrequency (RF) technology, and was optimized for nuclear/high energy physics research. The success of this technology led to the creation of a Free Electron Laser (FEL) facility at Jefferson Lab that has ...

An instrumented package has been accelerated in a railgun projectile to measure the inbore acceleration as a function of time. Direct, continuous acceleration profiles have been repeatedly obtained with this package during electromagnetic launch and downr...

The operation of the proposed Continuous Electron Beam Accelerator Facility (CEBAF) at Newport News, Virginia, is expected to result in the activation and subsequent contamination of water resources in the vicinity of the accelerator. Since the proposed s...

A methodical investigation and measurement of human dynamic response to impact acceleration was conducted. Linear accelerations were measured on the top of the head, at the mouth, and at the base of the neck. Angular velocity was also measured at the base...

The importance of particle acceleration may be judged from the number of applications which require some sort of accelerated beam. In addition to accelerator-based high energy physics research, non-academic applications include medical imaging and treatme...

This paper discusses some concepts of future accelerators such as free electron lasers, two beam accelerator; and plasma-based adiabatic compressor. 12 refs., 10 figs., 5 tabs. (LSP)

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...

Two niobium resonant cavities for high-brightness ion beam acceleration have been constructed and tested. The first was based on a coaxial quarter-wave geometry and was optimized for phase velocity {beta}{sub o} = 0.15. This cavity, which resonates at 400 MHz in the fundamental mode, operated at an average (wall-to-wall) accelerating ...

Two niobium resonant cavities for high-brightness ion beam acceleration have been constructed and tested. The first was based on a coaxial quarter-wave geometry and was optimized for phase velocity {beta}{sub 0} = 0.15. This cavity, which resonates at 400 MHz in the fundamental mode, operated at an average (wall-to-wall) accelerating ...

The lunar surface is continually bombarded with micrometeorites, primarily within the 0.1-1 um and < 100 km/s range. The impacts of such particles at the lunar surface introduce significant potential hazards to humans and instruments, but also create a scientifically rich complex system. Upon impact into the lunar regolith, cratering and micro-plasma creation can lead to ...

The former Strategic Defense Initiative Organization (SDIO) invested significant resources over a 6-year period to develop and build an accelerator to demonstrate the launching of a cw beam with characteristics suitable for a space-based Neutral Particle Beam (NPD) system. This accelerator, the CWDD (Continuous ...

The former Strategic Defense Initiative Organization (SDIO) invested significant resources over a 6-year period to develop and build an accelerator to demonstrate the launching of a cw beam with characteristics suitable for a space-based Neutral Particle Beam (NPB) system. This accelerator, the CWDD (Continuous ...

reasonable amount of time, an accelerated life test at high temperatures is used . This type of accelerated test is based on the observation that ...

reasonable amount of time, an accelerated life test at high temperatures is used . This type of accelerated test is based on the observation that ...