Effect of high. nu. /. gamma. electron beams for collective ion acceleration
Experimental observations of collective-effect acceleration with electron beams of various ..nu../..gamma.. (..nu.. is the Budker parameter and ..gamma.. is the usual relativistic factor) values injected into neutral low-pressure gases show, for beams with ..nu../..gamma.. near unity, that the peak accelerated ion energy exceeds the energy usually obtained from the deep stationary potential-well stage. It is suggested that high ..nu../..gamma.. electron beams, with a large transverse kinetic-energy content, undergo a longer transition period from the stationary to the moving phase and translate with a lower velocity than that expected solely on the basis of space-charge neutralization processes. Ion trapping during and following the transition stage results in final ion energies much greater than 3E/sub e/, where E/sub e/ is the electron beam kinetic energy. (AIP)
- Research Organization:
- Air Force Weapons Laboratory, Kirtland Air Force Base, New Mexico 87117
- OSTI ID:
- 7343236
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 47:10; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
430302* -- Particle Accelerators-- Injection & Extraction Systems
640301 -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATION
ACCELERATORS
BEAM DYNAMICS
BEAM INJECTION
BEAMS
COLLECTIVE ACCELERATORS
ELECTRON BEAM INJECTION
ELECTRON BEAMS
ENERGY RANGE
ENERGY SPECTRA
ION BEAMS
LEPTON BEAMS
PARTICLE BEAMS
RELATIVISTIC RANGE
SPECTRA