Collective ion acceleration. Progress report, October 1977--September 1978

Technical Report · Sun Jul 01 04:00:00 EDT 1979

DOI:https://doi.org/10.2172/6059651· OSTI ID:6059651

Faehl, R J

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-localized mode. Variation of linear wave fields in inhomogeneous magnetic fields is strongly affected by this. Numerical studies of self-consistent cyclotron waves show the persistence of linear characteristics even at large amplitudes. Propagation of large amplitude waves has been observed over moderate distances in simulations without significant attenuation or nonlinear disruption. Ion acceleration in virtual cathodes has also been studied. Insights into both formation and late time dynamics have been gained. Increased virtual cathode understanding is being pursued toward defining optimal configurations. Future plans are outlined.

• Research Organization: Los Alamos Scientific Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6059651
• Report Number(s): LA-7734-PR
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
BEAM CURRENTS
BEAM DYNAMICS
BREMSSTRAHLUNG
CATHODES
COLLECTIVE ACCELERATORS
CURRENTS
CYCLOTRON RADIATION
ELECTRIC FIELDS
ELECTRODES
ELECTROMAGNETIC RADIATION
KILO AMP BEAM CURRENTS
LINEAR ACCELERATORS
RADIATIONS
RESEARCH PROGRAMS