Electron Trapping in Self-Modulated Laser Wakefields by Raman Backscatter

Journal Article · Sat Nov 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.79.3909· OSTI ID:553116

Moore, C I; Ting, A; Krushelnick, K; Esarey, E; Hubbard, R F; Hafizi, B; Burris, H R; Manka, C; Sprangle, P ^[1]

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1. Beam Physics Branch, Plasma Physics Division, Naval Research Laboratory, Washington, D.C. 20375 (United States)

Simultaneous measurements of high energy electrons and plasma-wave characteristics have been conducted in a self-modulated laser-wakefield accelerator. Approximately 10{sup 8} electrons were accelerated from the background plasma to energies greater than 1MeV with a peak energy of approximately 30MeV. 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. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 553116
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BACKSCATTERING
CORRELATIONS
LASERS
MODULATION
PLASMA DENSITY
PLASMA WAVES
RAMAN EFFECT
TRAPPED ELECTRONS
WAKEFIELD ACCELERATORS