... Descriptors : *Linear accelerators, *Ion accelerators, *Particle accelerator components, *Electron accelerators, *Proton accelerators, Electron beams ...
DTIC Science & Technology
... High current electron beam transport in ... Descriptors : *BEAM FORMING, *ELECTRON ACCELERATORS, *ELECTRON BEAMS, HIGH ENERGY ...
... Descriptors : *ELECTRON ACCELERATORS, *LINEAR ACCELERATORS, USSR, ALIGNMENT, ELECTRON BEAMS, PRECISION ...
... Keywords: Foils materials; Electron beams focusing; Linear accelerators. Descriptors : *FOCUSING, *ELECTRON BEAMS ...
... Descriptors : *LINEAR ACCELERATORS, *MEDICAL EQUIPMENT, ELECTRON ACCELERATORS, RADIOTHERAPY, ELECTRON BEAMS ...
... designed electron guns can generate electron beams with emmitance ... NEC, provide beam acceleration without increasing beam emittance, and d ...
... Title : Investigation of Ion Beam Production and Acceleration Using Linear Electron Beams and a Pulse Powered Plasma Focus. ...
... Title : ACCELERATOR-BUNCHER OF ELECTRONS,. ... CAVITY RESONATORS, KLYSTRONS, ELECTRON BEAMS, OSCILLATION, ELECTRON ...
... warfare, joint planning, national and international ... Rapid Electron Beam Accelerators (REBA-TRONS). ... the beam dynamics in a rebatron accelerator. ...
... Theoretical and Experimental Investigation of Electron Beam ... nature of the helical electron beam generated by ... RF accelerator, all electrons can be ...
... in the Spiral Line Induction Accelerator ... Numerical Modelling of Intense Electron Beam Transport in the Spiral Line Induction Accelerator ...
... Abstract : Analytical and numerical calculations are presented for a reflexing electron beam type of collective ion accelerator. ...
... Descriptors : (*BETATRONS, PLASMA JETS), (*PLASMA JETS, BETATRONS), ELECTRON BEAMS, ELECTRON ACCELERATORS, OSCILLATION ...
... Title : Theoretical and Experimental Investigation of Electron Beam Acceleration and Submillimeter Wave Generation. Descriptive ...
A beam chopper and buncher system has been designed to improve the capture efficiency and reduce the beam spill in the Electron Test Accelerator. The buncher increases the dc beam capture from 30 to 70%. 100% beam transmission through the accelerator ...
National Technical Information Service (NTIS)
... ACCELERATOR COMPONENTS, *SUPERCONDUCTORS), (*ELECTRON BEAMS, INJECTORS), LINEAR ACCELERATORS, LEAD(METAL ...
... BEAMS, IMAGES, POWER SUPPLIES, TOROIDS, COMPENSATION, INDUCTION SYSTEMS, ELECTRON ACCELERATORS, BETATRONS. ...
... the coupling coefficient alpha is of ... between the hollow beam and the ... Descriptors : *ELECTRON BEAMS, ACCELERATION, TRANSMISSION LINES ...
... dependence on beam position and ... for many monitoring applications. ... ACCELERATORS, *ELECTRON BEAMS, INSTRUMENTATION, CERENKOV ...
... FREE ELECTRON LASERS, PARTICLE BEAMS, LEPTONS, PARTICLE ACCELERATORS, LINEAR ACCELERATORS, CYCLOTRON MAGNETS. ...
... Title : Photon Accelerator: A Novel ... LASERS, LASER BEAMS, COHERENT OPTICAL ... WAVELENGTHS, ACCELERATION, PHOTONS, ELECTRON ...
... Descriptors : *ION ACCELERATORS, *LINEAR ACCELERATORS, ELECTRIC FIELDS, CATHODES, ELECTRON BEAMS, INSTABILITY, SPACE ...
Selected examples of advanced accelerator concepts are reviewed. Such plasma accelerators as plasma beat wave accelerator, plasma wake field accelerator, and plasma grating accelerator are discussed particularly as examples of concepts for accelerating relativistic ...
Energy Citations Database
Some aspects of physics that contributed to design and operation of the ETA 10 kAmp electron accelerator are discussed. These include: the electron source, the emittance growth in the injector, beam transport through the accelerator, and the influence of the beam breakup ...
The acceleration of an electron beam in a double radial lines system excited by an external pulse generator has been accomplished and the basic mechanisms of the processes of obtaining the accelerating fields and of the acceleration of the beam have been investigated. (AIP)
... DoD) Issuances (current and cancelled ... Linear accelerators, Beam circuit interaction. Descriptors : *ELECTRON BEAMS, *LINEAR ACCELERATORS ...
... more suitable under certain circumstances. Top of page Electron Beam Generators Electron beam facilities generate e-beams with an electron beam linear accelerator. (It works on the same ...
MedlinePLUS
A process of accelerating electrons with a voltage applied thereto in a vacuum, guiding the accelerated electrons into a normal-pressure atmosphere, and irradiating the electron beam (EB) onto an object. The electron beam ...
US Patent & Trademark Office Database
... Descriptors : (*ELASTIC SCATTERING, ELECTRONS), (*ELECTRON ACCELERATORS, ELASTIC SCATTERING), ELECTRON BEAMS ...
... accelerated X-ray radiation and electron beams formed in gases at electrons (from the total number of the electrons elevated ...
... of Acceleration and Densification of Electrons Utilizing Travelling ... Abstract : Experimental investigation of electron beam physics: naturally occurring ...
Photoemission shines as a source of the bright electron beams required for free-electron lasers and particle-physics accelerators.
DOE Information Bridge
... ACCELERATION, RESISTANCE, ENERGY, NUMERICAL ANALYSIS, CAVITIES, FREE ELECTRONS, ELECTRON ENERGY, PUMPING ...
A Two-Beam Accelerator, in which one of the beams is an intense low energy beam made to undergo free electron lasing and the other beam is a compact bunch of high energy electrons, is shown to be an interesting possibility for a linear collider.
... Title : CONTROLLED ELECTRON BUNCHER,. ... GENERATORS, *ELECTRON ACCELERATORS, ELECTRON BEAMS, CONTROL SYSTEMS ...
... ELECTRON BEAMS, *HELIUM, RADIATION, SYMPOSIA, ACCELERATION, PLASMAS(PHYSICS), ELECTRON DENSITY, CURRENT DENSITY, X ...
... Descriptors : *Electron beams, *Research management, *Betatrons, *Electron accelerators, Dynamics, Drift, Intensity, Nonlinear systems, Toroids ...
... Descriptors : *LINEAR ACCELERATORS, *ELECTRON ACCELERATORS, AIR FORCE RESEARCH, TEST FACILITIES, ELECTRON BEAMS ...
Investigations on the laser acceleration in vacuum are reviewed including up-date experimental results, projects of new experiments and theoretical prospects of vacuum acceleration schemes for high energies of accelerated particles. Most attention is devoted to analysis of the IFELs with focused laser beam drivers. ...
NASA Astrophysics Data System (ADS)
Focusing of electron beams in accelerators is reviewed. Space charge effects, chromatic aberrations, and beam breakup instability are discussed. (AIP)
... Cyclotron motion is the basic movement of a charged ... These electron beams can be actively modulated at ... will in effect "tag' the beam electrons with ...
A device and method are described for pumping gaseous lasers by means of a microwave accelerator. The microwave accelerator produces a relativistic electron beam which is applied along the longitudinal axis of the laser through an electron beam window. Th...
The use of a lead sulfide detector in a device for monitoring the intensity distribution of high energy electron beams from a linear accelerator is described. Experimental measurements of the beam profile for a 6-Mev linear accelerator are presented. (auth)
... Wave Generation Via a Free Electron Laser. ... Wave Gain; Solenoid; Accelerator; Harmonic ... FREE ELECTRON LASERS, ACCELERATED TESTING ...
... Resonant Acceleration of Protons Utilizing the FX ... FX-100 as electron beam sources. ... ELECTRON BEAMS, *PROTON ACCELERATORS, PLASMAS ...
... Descriptors : *Betatrons, *Particle accelerators, *Electron accelerators, High energy, Injection, Magnetic fields, Radius(Measure), Electron beams ...
The Ionization Front Accelerator (IFA) is a collective ion accelerator for which high-gradient particle acceleration has now been demonstrated. In the IFA, the space charge field at the front of an intense relativistic electron beam is controlled by a las...
A novel advanced accelerator is proposed. The counterstreaming electron beam accelerator relies on the same physical mechanism as that of the plasma accelerator but replaces the stationary plasma in the plasma accelerator by a magnetized relativistic ...
... Abstract : A 3 MeV electrostatic accelerator has been modified for high electron current operation using beam recovery. ...
... ION BEAMS, *CYCLOTRON RESONANCE, *PLASMA ... ENERGY, PARTICLES, ELECTROMAGNETIC ... Categories : PARTICLE ACCELERATORS ...
... Accession Number : ADA206348. Title : Simulation Studies of Particle Acceleration Powered by Modulated Intense Relativistic Electron Beams. ...
... of an X-band linear accelerator for production of a beam having high ... A small angle theory of bunching in a distributed buncher is developed and ...
... Descriptors : *PLASMA ACCELERATORS, *ELECTRON BEAMS, *PLASMAS(PHYSICS), HEATING, BETATRONS, INTERACTIONS, ...
Computer simulation is used to study issues of intense electron beam transport arising in the context of the spiral line induction accelerator (SLIA), a device in which the beam is transported along an open-ended beam pipe, making multiple passes through ...
... Pagination or Media Count : 27. Descriptors : *SYNCHROTRONS, *BETATRONS, USSR, ELECTRON BEAMS, TRANSLATIONS. ...
... Descriptors : *BETATRONS, EQUATIONS OF MOTION, ELECTRON BEAMS, DRIFT, TOROIDS, PRESSURE DISTRIBUTION, ADIABATIC ...
... Experiments at Spire and at the Gamble I facility of NRL show that the beam front propagation velocity is not affected by the dielectric guide ...
Particle dynamics of an intense electron beam of nanosecond length is studied experimentally in a waveguide buncher and in the waveguide limiter section of the main part of the accelerator. The experimental results are compared with theory.
... can lead to serious emittance growth. ... ion channel motion on beam transport in ... Compact accelerators, Charged particle beams, Relativistic electron ...
... (Author). Descriptors : *ION BEAMS, *ION ACCELERATORS, *LINEAR ACCELERATORS, COMPUTERIZED SIMULATION, PLASMAS(PHYSICS ...
A new method is proposed for collectively accelerating bunches of ions with an intense relativistic-electron beam. By varying the beam energy in time, acceleration of a slow Doppler-shifted cyclotron wave can be accomplished, without accompanying degradation of the beam ...
Monoenergetic electron beams have been generated in the self-injection scheme of laser acceleration. In applications of these laser accelerated electron beams, stable and controllable electron beams are necessary. A stable ...
... energy electrons with a beam current which was ... During the highest beam currents the accelerator payload ... percent greater than the beam energy. ...
The CEBAF accelerator delivers a CW electron beam at fundamental 1497 MHz, with average beam current up to 200 (mu)A. Accurate, stable nonintercepting beam current monitors are required for: setup/control, monitoring of beam current and beam losses for ...
Advances are reported in the theory and experiments investigating Inertial Confinement Fusion with light ion beams on the Particle Beam Fusion Accelerator II (PBFA II). Impedance of the accelerating gap, electron-ion instabilities, proton beam generation ...
Basically there are two areas of accelerator applications that involve beam polarization. One is the acceleration of a polarized beam (most likely a proton beam) in a synchrotron. Another concerns polarized beams in an electron storage ring. In both ...
An ultra-compact free electron laser comprising a pair of opposed superconducting cavities that produce identical electron beams moving in opposite directions such that each set of superconducting cavities accelerates one electron beam and decelerates the other ...
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)
The development of a three dimensional code calculating the electron beam trajectory in accelerating structure is reported. An electron plasma wave excited to a known amplitude is supposed and the electron acceleration in the field of this wave is analyti...
The performance of a free electron laser strongly depends on the electron beam quality or brightness. The electron beam is transported into the free electron laser after it has been accelerated to the desired energy. Typically the maximum ...
Computer simulations are used to investigate the evolution of longitudinal density and energy modulations of an electron beam in a linear accelerator system. This study examines the effect of initial energy spread on the modulations as the beam is accelerated in the ...
... Descriptors : *NUCLEAR RADIATION, *ELECTRON BEAMS, *LINEAR ACCELERATORS, TRANSISTORS, DAMAGE, SOLID STATE PHYSICS ...
... COMPUTERIZED SIMULATION, ACCELERATION, TRANSPORT PROPERTIES, FOCUSING, OSCILLATION, TRANSVERSE, BETATRONS. ...
... Descriptors : *ELECTRON BEAMS, *CYCLOTRON RESONANCE, *PARTICLE ACCELERATORS, ORBITS, STOCHASTIC PROCESSES ...
... (Author). Descriptors : *Betatrons, Stability, Electron beams, Dispersion relations. Subject Categories : PARTICLE ACCELERATORS. ...
This work is devoted to the theoretical studies of two-beam mechanisms of charged particle acceleration in electronic structures. The first section continues the outline of results of theoretical studies commenced in the intermediate report and considers the two-beam scheme of acceleration in ...
A 3 MV, 800 kA, 24 ns electron beam accelerator is described and the results of initial switching experiments are discussed. The generator will provide a source for studying the physics of processes leading to electron beam driven, inertially confined fus...
High current annular electron beam in an accelerator is subject to various instabilities. A general fluid-Maxwell theory of the diocotron instability is developed for an infinitely long and azimuthally symmetric annular electron beam propagating along an ...
Beam commissioning of a new 4 rod RFQ has started at Brookhaven National Laboratory (BNL). The RFQ will accelerate intense heavy ion beams provided by an Electron Beam ion Source (EBIS) up to 300 keV/u. The RFQ will accelerate a range of Q/M from 1 to 1/6, and the ...
... DoD) Issuances (current and cancelled ... Descriptors : *BEAM FORMING, *FOCUSING, *LINEAR ... DAMPING, ELECTRON BEAMS, NONLINEAR ...
Linear Induction Accelerators (LIAs) can readily produce intense electron beams. For example, the ATA accelerator produced a 500 GW beam and the LIU-30 a 4 TW beam (see Chap. 2). Since the induction accelerator concept was proposed in the late 1950s [1, ...
Accelerator concepts discussed include the wake-field accelerator, the two-beam accelerator, the inverse free electron laser, and the laser plasma wave accelerator. (GHT). 18 references, 12 figures.
A parasitic electron beam facility was developed at the Mark III linear accelerator, Stanford University. The beam was used both for physics experiments and for computer and spark chamber tests even though the beam intensity is very low. A tagged photon b...
Numerical simulations codes are described which can be used to study the physical phenomena of high-current electron beams employed in some novel accelerator schemes. Examples are given of the study of transverse effects in the free electron laser part of a Two-Beam ...
An electron beam accelerator comprising an electron beam generator-injector to produce a focused beam of .gtoreq.0.1 MeV energy electrons; a plurality of substantially identical, aligned accelerator modules to sequentially receive ...
DOEpatents
New high current electron accelerators including the Stanford superconducting accelerator, offer the possibility of producing large secondary beams of low energy pions at an economical cost. Such intense pion beams are of interest to intermediate energy p...
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...
An experiment was conducted at the Advanced Test Accelerator (ATA) in the spring/summer of 1988 to study the transport of the ''laser guided'' electron beam through the accelerator and beyond. The electron beam was guided from the /approximately/3.75 MeV ...
Design objectives are proposed for a continuous beam 2 GeV electron accelerator. Various accelerator concepts are examined in light of these requirements. A double-sided microtron shows promise for yielding major savings in capital cost and excellent beam characteristics.
Results are described of initial tests on an accelerator (RAYITO) designed to investigate electron-beam control and uniform excitation of large volume lasers. For these tests the accelerator is operated in the 50 nsec mode with diode voltages and currents...
The Continuous Electron Beam Accelerator Facility (CEBAF) will be a 4-GeV, 200- mu A superconducting recirculating linear accelerator to provide CW electron beams to simultaneous nuclear physics experiments in three end stations. Funded by the Department ...
The electron cloud effect (ECE) causes beam instabilities in accelerator structures with intense positively charged bunched beams. Reduction of the secondary electron yield (SEY) of the beam pipe inner wall is effective in controlling cloud formation. We ...
The methods for obtaining electron and photon beams from high-energy proton accelerators are considered. The results of investigations of the electromagnetic interactions of elementary particles obtained by means of these beams are discussed.
The apparatuses and the program developed are intended to automate the transport of a pulsed electron beam of a linear induction accelerator. This measuring and control system comprises subsystems for the automatization of focusing and beam position corre...
Plasma wakefield acceleration of positron beams in the wake of a dense electron beam (in the blowout regime) is numerically analyzed. The acceleration is possible only if the energy content of the wakefield is not very high. This is in contrast to electron ...
Kent State University's Program on Electron Beam Technology has access to an ... The electron accelerator produces electrons with energies in the interval ...
NASA Website
... Descriptors : *ELECTRON BEAMS, *ELECTRON EMISSION, *ELECTRON ACCELERATORS, DIODES, PLASMAS(PHYSICS), PULSE ...
The CEBAF beam transport system consists of six subsystems: injector optics, linac lattices, spreaders, extraction regions, recirculation arc beam lines, and recombiners. In this report we describe recent modifications to the beam transport system design....
The Beam Scraping Monitor (BSM) is used to detect small amounts of beam loss in Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF). The BSM acts as an early warning system that alerts CEBAF operators when the beam loss exceeds 10 to 20 ...
This paper reports results of transverse emittance studies and beam propagation in electrostatic accelerators for free electron laser applications. In particular, we discuss emittance growth analysis of a low current electron beam system consisting of a miniature thermoionic ...
Two betatrons are provided in tandem for alternately accelerating an electron beam to avoid the single flux swing limitation of conventional betatrons and to accelerate the electron beam to high energies. The electron beam is ...
The Two-Beam Accelerator (TBA) shows great promise for achieving high accelerating gradients, perhaps >250 MV/m, for such machines as electron linear colliders. This paper presents the results of studies of candidate structures for a TBA. Also, the hardwa...
The Stanford Linear Accelerator Center (SLAC) operates a high energy electron accelerator (capable of energies up to 50 GeV). During operation the instantaneous dose rates in the vicinity of the beam pipe due to beam losses can be extremely high. This res...
Numerical and analytic studies of collective ion acceleration in intense relativistic electron beams are presented. Investigation of autoresonant acceleration has shown that radial beam inhomogeneities distort the slow cyclotron wave into a surface-locali...
Using a counterstreaming electron beam to support a nonlinear wakefield for particle acceleration is investigated theoretically. This scheme has the following advantages over the plasma wakefield accelerator (PWFA): (1) easier beam loading; (2) higher transformer ratio; and (3) easier ...
Electron and laser beam interaction in the field of a profiled ondulator is theoretically calculated. Electron capture in the acceleration regime is shown to take place when complying with the conditions of interaction synchronism. Expressions for acceler...
The type of radiofrequency plant typical of orbital accelerating machines is demonstrated, and formulas are given that show that the accelerating device (resonant cavity) is loaded by the beam and that the loading depends only on the characteristics of the beam and the accelerating ...
Obtaining detailed knowledge of the condition of the electron beam delivered to the experimental tank is of prime importance in the attempt to correlate the propagation data with theory. There are many interesting and unique features of the beam delivered by Advanced Test Accelerator (ATA) to the experimental tank.
This paper reports the measurements of beam breakup (BBU) instability performed on the Advanced Test Accelerator (ATA) up to the end of February, 1984. The main objective was to produce a high current usable electron beam at the ATA output. A well-known i...
The induction accelerator is discussed with respect to general background and concept, beam transport, scaling, pulse power technology, and the electron beam injector. A discussion of the factors which affect the scaling of the intensity of the beam is gi...
. The confinement time is longer if the electron is at a position of stronger acceleration and smaller r initiallyDetailed dynamics of electron beams self-trapped and accelerated in a self-modulated laser 1999 The electron beam generated in a ...
E-print Network
In this work we examine the consequences of finite beam emittance and discuss some of the requirements on the beam transport system in a free electron laser; we will not discuss the operation of the FEL. We concentrate on beams from linear accelerators, b...
The Advanced Test Accelerator (ATA) has solenoidal magnets to focus and guide the electron beam. The transverse position of the center of mass of the beam is measured at many positions along the accelerator using the wall current monitors. With the steering coils off, the ...
The components, operation, and performance of the beam extraction system are described, and the selection and proporties of particle orbits in the extraction channel are discussed. Single accelerated beam pulses were observed to last 37 nsec, and 40 mamp per pulse currents were measured in the extracted ...
... Electron beam (or e-beam) is similar to X-rays and is a stream of high-energy electrons propelled from an electron accelerator into food. ...
Center for Food Safety and Applied Nutrition (CFSAN)
... Pagination or Media Count : 56. Abstract : An electron probe is a finely focused beam of electrons accelerated through a potential of 5 to 40kv. ...
... FIELDS, DISTRIBUTION, INTERACTIONS, ACCELERATION, PLASMAS( PHYSICS), ALIGNMENT, ELECTRONS, ELECTRON BEAMS, HYBRID ...
... To do this the system was considered in the following segments: Electron injection electronics, Electron beam injection hardware, Accelerating ...
In two-beam accelerators, the reacceleration of a modulated drive beam can enable high conversion efficiency of electron beam energy to rf energy. However, the stability issues involved with the transport of high current electron beams through rf ...
The possibility of enhancing the energy gain in laser-driven accelerators by using Bessel laser beams is examined. Scaling laws are derived for the propagation length, acceleration gradient, and energy gain in various accelerators for both Gaussian and Bessel beam drivers. For equal ...
The possibility of enhancing the energy gain in vacuum electron acceleration by Airy beams is examined. The characteristics of transverse acceleration and non-diffraction of Airy beam can lead to the formation of a long "asymmetric field channel" along the propagation axis, where the intense ...
PubMed
The rebatron is a high-current compact accelerator concept which differs from the modified betatron and the stellatron. In the latter devices, the acceleration mechanism is the relatively slow betatron mechanism. In the rebatron, there is rapid acceleration of the electrons as the beam ...
Electron acceleration using a tightly focused ultraintensity laser beam is investigated numerically and strong phase dependence is found. The acceleration is periodic to the variety of the initial laser field phase, and the accelerated electrons are emitted in pulses of ...
... can provide the high-brightness electron beams necessary for the FEL: room-temperature pulsed linear accelerators, superconducting accelerators ...
In this paper, the electron beam diagnostics developed for recirculating electron accelerators will be reviewed. The main novelties in dealing with such accelerators are: to have sufficient information and control possibilities for the longitudinal phase ...
An electron accelerator unit is described for electron beam therapy, comprising: a source of an electron beam; means for finally directing at least a portion of the beam to a therapy site, the directing means being mechanically independent of, and ...
This review is devoted to processes in electron-ion beams and rings. The fundamentals of the distribution-function moments method in electron-ion beam physics and its applications to the dynamics of multicomponent beams with noncoincident dimensions are presented. Ion production and storage in ...
... Abstract : Beam breakup and negative mass instability growth rates for a 1 kA, 40 MeV electron beam racetrack induction accelerator are computed. ...
The space-charge-wave dispersion characteristics of a thin, hollow, relativistic electron beam is calculated for beam currents near the space-charge limit for propagation of the beam. (AIP)
This report contains papers on the following topics: Ion beam papers; electron beam, bremsstrahlung, and diagnostics papers; radiating Z- pinch papers; microwave papers; electron laser papers; advanced accelerator papers; beam and pulsed power application...
Ion acceleration has now been demonstrated with the IFA-2 collective ion accelerator system. The IFA-2 system is described, photoionization experiments are summarized, and ion results are presented. Using a 1 MeV electron beam and a 30 cm acceleration len...
Accelerator systems capable of driving inertial fusion targets are described. They are based on linear induction accelerator technology coupled with new methods of beam transport using electron neutralization of ion space charge. The resulting accelerator...
The induction accelerator was conceived by N. C. Christofilos and first realized as the Astron accelerator that operated at LLNL from the early 1960's to the end of 1975. This accelerator generated electron beams at energies near 6 MeV with typical curren...
... Title : Theoretical and Experimental Investigation of Electron Beam Acceleration and Sub-Millimeter Wave Generation. Descriptive Note : Final rept. ...
... Title : SOME ASPECTS OF ELECTRON BEAM OPTICS AND X-RAY PRODUCTION WITH THE LINEAR ACCELERATOR. Corporate Author : ...
A magnetic analyzer and the methods of partial and total absorption in foils are used to measure the energy spectrum of high-current electron beams in experiments on the Impulse accelerator.
This report discusses the following experimental and theoretical developments: traveling wave tube amplifiers; coaxial beam amplifiers; ferroelectric ceramics; and microwave systems. (LSP)
Four accelerator parameters were found to control the condition of the electron beam entering the Intergrated Fast Reactor (IFR). These parameters were the matching of the electron beam to the ion channel, the laser timing, the benzene pressure at the ent...
A negative ion beam, generated by double charge exchange, has been accelerated to 60 keV. The components of the beamline are described, and an analysis of the flow and the effect of the beam-generated plasma is presented. It is shown that plasma flow along the beamline is limited by transverse ambipolar transport; ...
Electrons from linear accelerator directed in collimated beam at normal incidence upon thick targets
NASA Technical Reports Server (NTRS)
... Descriptors : *Electron beams, *Particle accelerators, *Betatrons, *Equations, Dynamics, Toroids, Corrections, Magnetic fields, Walls, Diffusion ...
... detected in Technical Report 308, *Computation of the Spreading of an Electron Beam Under Acceleration and Space-Charge Repulsion." Please ...
... Accession Number : ADA057690. Title : A Qualitative Description of the Modified TRITON Electron Beam Accelerator. Descriptive ...
of those offices. The main thrust areas of this project are: � Beam Dynamics (BD): The evolution of beams): Simulate the dynamical friction of ions in relativistic copropagating electron beams to assess are common to beam propagation in cavities and advanced acceleration, ...
Beam breakup and image displacement instability growth rates for a 1 kA, 40 MeV electron beam racetrack induction accelerator are computed, The hypothetical device is taken to have four acceleration gaps, each with 0.2 MeV applied voltage and 15 ohm trans...
A high efficiency, free electron laser utilizing a circular relativistic electron beam accelerator and a circular whispering mode optical waveguide for guiding optical energy in a circular path in the circular relativistic electron beam accelerator such ...
In the first chapter, terminology, physical and radiological quantities, and units of measurement used to describe the properties of accelerator radiation fields are reviewed. The general considerations of primary radiation fields pertinent to accelerators are discussed. The primary radiation fields produced by electron ...
The inverse free electron laser accelerator is considered to be a potential high gradient electron accelerator. In this accelerator electrons oscillating in the magnetic field of a wiggler can gain energy from a strong laser beam propagating ...
An experimental program performed on the OWL II pulsed electron beam accelerator with mean electron energy of 950 keV and electron beam energy of 80 kJ has been accomplished. The reliability of the accelerator was shown to be greater than 90 percent at ...
Numerical simulations codes are described which can be used to study the physical phenomena of high-current electron beams employed in some novel accelerator schemes. Examples are given of the study of transverse effects in the free electron laser part of...
Electron beam bunching in the optical wavelength was observed experimentally for the first time at the Brookhaven Accelerator Test Facility (ATF) using the Inverse Free Electron (IFEL) accelerator. The micro-bunched electron beam has been studied by ...
In this paper, we give a brief description of several advanced accelerating structures, such as dielectric loaded waveguides, photonic band gap, metamaterials and improved iris-loaded cavities. We describe wakefields generated by passing high current electron beams through these structures, and applications of wakefields to advanced ...
