Calculations regarding trapping, retention, transfer, and acceleration of charged particles in earth
NASA Technical Reports Server (NTRS)
... Accession Number : AD0646930. Title : NONFERROUS ACCELERATOR OF CHARGED PARTICLES,. Corporate Author ...
DTIC Science & Technology
... Descriptors : *PARTICLE ACCELERATORS, CYCLOTRONS, IONS, LINEAR ACCELERATORS, MAGNETIC PROPERTIES, MATRICES ...
... Descriptors : *Linear accelerators, *Particle accelerators, Pulse generators, Charged particles, Inductance, Capacitance, Translations, USSR. ...
The process of charged particle acceleration in interplanetary shocks has been simulated for typical
... and Charged Particle Acceleration ... TURBULENCE, CHARGED PARTICLES, ELECTROMAGNETIC ... HEATING, KINETICS, MAGNETIZATION, HIGH ...
... ACCUMULATORS, CHARGED PARTICLES, CAVITY RESONATORS. Subject Categories : PARTICLE ACCELERATORS NUCLEAR PHYSICS & ...
The role played by shock-associated drifts during the diffusive acceleration of charged particles at
We have investigated the effect of acceleration of a charged particle on its Cerenkov emission and ionization losses. We have considered the accelerated motion of a charged particle in an infinite medium with acceleration along with the direction of its ...
National Technical Information Service (NTIS)
... Descriptors : (*PARTICLE ACCELERATORS, INJECTION), BETATRONS, CHARGED PARTICLES, CONTROL SYSTEMS, ANALOG COMPUTERS ...
... DIRECTION), PHASE, RESONANCE, TRANSLATIONS, CHARGE DENSITY, TRAVELING WAVES, PARTICLE BEAMS, LINEAR ACCELERATORS. ...
This document is a basic course on charged particle sources for post- graduate students and thematic schools on large facilities and accelerator physics. A simple but precise description of the creation and the emission of charged particles is presented. ...
This paper discusses the acceleration of charged particles by electromagnetic fields, i.e., by fields that are produced by the motion of other charged particles driven by some power source. The mechanisms that are discussed include: Ponderamotive Forces, ...
Mar 7, 2007 ... and method to feed, ionize, and accelerate charged particles, ..... tively charged particles or cations out of the accelerator sys- ...
NASA Website
The general principle of charged particle acceleration in space and laboratory plasmas is illustrated by a discussion of particular types of acceleration mechanisms which can be classified as either deterministic processes or stochastic processes. Acceler...
The problem of dynamics optimization for charged particle beams in RFQ accelerators is discussed in this article. The problems of the optimization of particle capture into the acceleration mode are analyzed. Accelerators with low injection energies are considered.
NASA Astrophysics Data System (ADS)
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...
Sep 27, 2004 ... Acceleration of Charged Particles. A magnetic field exerts a force on a charged particle which is moving in it. This causes the particle to radiate, ...
In combination with a charged particle beam generator and accelerator, apparatus and method are provided for stabilizing a beam of electrically charged particles. A guiding means, disposed within the particle beam, has an electric charge induced upon it ...
DOE Information Bridge
... Accession Number : ADD014333. Title : Periodic Permanent Magnetic Structure for Accelerating Charged Particles. Descriptive ...
Shock waves accelerate charged particles in the solar atmosphere, in interplanetary space and around
A stochastic model for the semiclassical collective dynamics of charged beams in particle accelerators 1
E-print Network
... Descriptors : *BETATRONS, INJECTION, MODIFICATION, TRAPPING( CHARGED PARTICLES), FOCUSING, PLANNING PROGRAMMING ...
... METHOD OF FORMING A VARYING MAGNETIC FIELD OF CYCLIC ACCELERATORS OF CHARGED PARTICLES (SPOSOB FORMIROVANIYA ...
Nuclear electric generator for accelerating charged propellant particles in electrostatic propulsion
... Descriptors : *BETATRONS, *PARTICLE ACCELERATOR COMPONENTS, MAGNETIC FIELDS, DISPLACEMENT, TRAPPING(CHARGED ...
This learning resources comprise a healthy introduction to charged particle acceleration. The site, by Stanley Humphries, a professor of electrical and computer engineering at University of New Mexico, amounts to an online textbook (.pdf) introducing the theory of charged particle ...
NSDL National Science Digital Library
This paper discusses the acceleration of charged particles by electromagnetic fields, i.e., by fields that are produced by the motion of other charged particles driven by some power source. The mechanisms that are discussed include: Ponderamotive Forces, Acceleration, ...
The longitudinal particle dynamics in a linear accelerator in the acceleration regime of two waves with multiple frequency without regard for space charge is considered. The accelerating structure of a cavity resonator with 100 MeV drift tubes of is chose...
The present evaluation of the basic techniques and illustrative results of charged particle-modeling
... EXCHANGE, *CYCLOTRON RESONANCE, *PARTICLE ACCELERATORS, MAGNETIC ... TRAPPING(CHARGED PARTICLES), HYDRODYNAMIC ...
Topics covered include: longitudinal particle oscillation in beams with negligibly low space-charge density; transverse particle oscillation in beams with negligibly low space-charge density; transverse particle oscillations in beams with high space charg...
The invention provides an accelerator for ions and charged particles. The plasma is generated and confined in a magnetic mirror field. The electrons of the plasma are heated to high temperatures. A series of local coils are placed along the axis of the magnetic mirror field. As an ion or particle beam is directed ...
Energy Citations Database
DOEpatents
... Accelerators (Moscow, 11-18 November 1970 ... TECHNOLOGY, CHARGED PARTICLES, COMPUTER ... TRANSLATIONS, PARTICLE TRAJECTORIES ...
Research and development was performed on the generation and acceleration of charged particles toward the ultimate development of a colloid thruster. Standard and specialized laboratory techniques were used to construct and test thruster components. Parti...
An algorithm has been developed to compute particle tracking, including self-consistent space charge effects for synchrotron accelerators. In low-energy synchrotrons space charge plays a central role in enhancing emittance of the beam. The space charge ef...
A coupled cavity accelerator (CCA) accelerates a charged particle beam with rf energy from a rf source. An input accelerating cavity receives the charged particle beam and an output accelerating cavity outputs the ...
It is possible to form plasma accelerating cells at interaction of acoustic waves with plasma. Cells have submicrons sizes. It is shown also, that can line up such cells along the trajectory of the accelerated particle. By the effect of such acceleration is eplained the rejection in plasma the distribution of ...
The modern charged particle accelerator has found application in a wide range of scientific research, industrial, medical, and defense fields. Researchers began to use permanent-magnet materials in particle accelerators soon after the invention of the alt...
We consider relativistic guiding center motion of charged particles (charge e, rest mass m sub 0 ) in magnetic fields consistent with toroidal tokamak equilibrium. The particle acceleration due to the toroidal electric field essential to tokamak operation...
Laser particle acceleration (LPA) involves the acceleration of particle beams by electromagnetic waves with relatively short wavelength compared with conventional radio-frequency systems. These short length scales raise the question whether space charge effects may be a limiting factor in LPA ...
The particles and energies commonly used for medium energy nuclear physics and heavy charged particle radiobiology and radiotherapy at particle accelerators are in the charge and energy range of greatest interest for space radiation health. In this article we survey some of ...
PubMed
Charge fluctuations along the rapidity axis are investigated in pp interactions at 69 GeV/c in the 'Mirabel' bubble chamber on the Serpukhov accelerator. Neutral charge bands are defined and the particle multiplicity in such bands is evaluated. The charge...
The nonrelativistic Larmor radiation formula, giving the power radiated by an accelerated charged point particle, is generalized for a spatially extended particle in the context of the classical charged harmonic oscillator. The particle is modeled as a spherically symmetric ...
A particle tracing code was developed to study space--charge effects in proton or heavy-ion linear accelerators. The purpose is to study space--charge phenomena as directly as possible without the complications of many accelerator details. Thus, the accel...
Equations for dynamics without space charge are presented. The dynamic equations are reviewed and new equations for particle dynamics are presented. The two phenomena limiting accelerated current in a proton linear accelerator are reviewed. Beam loading, ...
As an example of the spectral range for the characteristic resonant ..... but these charged particles are locally accelerated or retarded by sheath fields. ...
A review of research results is given in the fields of electrostatic spraying, and control of fluids in accelerated and low gravity environment.
... accelerators, Charged particles, X rays, Pin diodes, Ionizing radiation, Circuits, Detectors, Attenuators, Integrators, Multivibrators, Monitoring. ...
... SOLAR COSMIC RAYS, ACCELERATION, TRAPPING(CHARGED PARTICLES), PROTONS, MAGNETIC MIRRORS, SOLAR FLARES, POLAR ...
Experiments indicating acceleration of charged particles as a result of separation of solid surfaces are analyzed. As a possible mechanism of such acceleration, generation of surface charge on the separated surfaces of a cleaved ionic crystal is considered. The maximum electric field generated ...
Current research is described on pulsed power ion accelerators for inertial fusion, i.e., ion diodes and collective accelerators. Particle beam energy and power requirements for fusion, and basic deposition characteristics of charged particle beams are di...
"The largest particle accelerators have dimensions measured in miles. A cyclotron is a particle accelerator that is so compact that a small one could actually fit in your pocket. It makes use of electric and magnetic fields in a clever way to accelerate a charge in a small ...
In cyclic induction accelerators, the energy of the particles increases slowly in synchronism with the vertical (betatron) magnetic field. As a consequence of the slow acceleration, the charged particles must be confined by the weak focusing magnetic fiel...
This patent describes a position sensitive detector for imaging incident radiation, charged particles and/or energetic neutral particles. It comprises: means for detecting the radiation and/or charged particles and producing an amplified and accelerated ...
The report contains a discussion of the various uses of charged particle accelerators, circular iris waveguides, and high-frequency separators.
... can lead to serious emittance growth. ... ion channel motion on beam transport in ... Compact accelerators, Charged particle beams, Relativistic electron ...
This report considers the use of a diffraction grating as an accelerating structure for charged particle beams. We examine the functional dependence of the electromagnetic fields above the surface of a grating. Calculations are made of the strength of the...
... Acceleration of Ionospheric Ions by Lower ... in-Cell Plasma Simulation of High-Latitude Lower Hybrid Turbulence and Charged Particle Acceleration ...
An improvement is presented in linear accelerators for charged particles with respect to the stable focusing of the particle beam. The improvement consists of providing a radial electric field transverse to the accelerating electric fields and angularly introducing the beam of ...
... Title : Transactions of the All-Union Conference (2nd) on Charged Particle Accelerators, Moscow, 11-18 November 1970. Volume I,. ...
Recent results for charge-changing collisions of interest for cyclotrons and other particle accelerators are presented. Scaling rules, where available, are emphasized. 45 references, 11 figures.
Mar 2, 2005... detected the presence of highly charged particles crashing into the ... by the acceleration of charged ions of oxygen and other elements ...
Plasma accelerators may be driven by the ponderomotive force of an intense laser or the space-charge force of a charged particle beam. The implications for accelerator design and the different physical mechanisms of laser-driven and beam-driven plasma acceleration are ...
Some proposed techniques for using laser beams to accelerate charged particles are reviewed. Two specific ideas for 'grating-type' accelerating structures are discussed. Speculations are presented about how a successful laser accelerator could be used in ...
Recently attention has focused on charged particle acceleration in a plasma by a fast, large amplitude, longitudinal electron plasma wave. The plasma beat wave and plasma wakefield accelerators are two efficient ways of producing ultra-high accelerating g...
This report presents an analytical method to determine the main parameters of a high current linear accelerator. First, the basic theory on particle dynamics in linear accelerators is reviewed. Particular emphasis has been given to include the space charg...
The RF control system for a charged-particle accelerator must maintain the correct amplitude and phase of RF field inside the accelerator cavity in the presence of perturbations, noises, and time varying system components. For an accelerator with heavy be...
An apparatus is designed for accelerating micron-size particles to meteoric velocities for impact studies of materials which may be used as spacecraft surfaces. In the apparatus, micron-size diamond particles are injected into an electrodynamic suspension chamber in a state of high vacuum, and one particle ...
