Accession Number : ADA328920

Title :   Electron Trapping in Self-Modulated Laser Wakefields by Raman Backscatter.

Descriptive Note : Memorandum rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC LASER PHYSICS SECTION

Personal Author(s) : Moore, C. I. ; Ting, A. ; Esarey, E. ; Hubbard, R. F. ; Krushelnick, K.

PDF Url : ADA328920

Report Date : 31 AUG 1997

Pagination or Media Count : 15

Abstract : Simultaneous measurements of high energy electrons and plasma wave characteristics have been conducted in a self-modulated laser wakefield accelerator. Approximately 10(exp 8) electrons were accelerated from the background plasma to energies greater than 1 MeV with a peak energy of approximately 30 MeV. A strong correlation between the plasma wave amplitude and electron production was measured with no evidence of wave breaking. Simulations indicate plasma electrons are trapped by the low phase velocity beat waves produced by backward Raman scattering.

Descriptors :   *ELECTRONS, *ELECTRON ACCELERATORS, *PLASMA WAVES, ELECTRON DENSITY, TRAPPING(CHARGED PARTICLES), BACKSCATTERING, LASER BEAMS, HIGH ENERGY, ELECTRON ENERGY, LASER APPLICATIONS, RAMAN SPECTRA, PLASMA ACCELERATORS, PHASE VELOCITY.

Subject Categories : Plasma Physics and Magnetohydrodynamics
      Particle Accelerators

Distribution Statement : APPROVED FOR PUBLIC RELEASE