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Title: Increased hot-electron production at quarter-critical density in long-scale-length laser-plasma interactions

Abstract

Hot-electron fractions measured in Nd-laser-plasma interactions at 10/sup 14/ W/cm/sup 2/ increase from <0.02% to 0.3% as plasma scale length at quarter-critical density (n/sub c//4) is systematically increased from 140 to 320 ..mu..m. Correlated x-ray and 3..omega../2 emissions indicate that the hot electrons are produced by an n/sub c//4 instability.

Authors:
; ; ; ;
Publication Date:
Research Org.:
U. S. Naval Research Laboratory, Washington, D.C. 20375-5000
OSTI Identifier:
5467118
Resource Type:
Journal Article
Journal Name:
Phys. Rev. Lett.; (United States)
Additional Journal Information:
Journal Volume: 54:23
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; LASER-PRODUCED PLASMA; HOT PLASMA; PLASMA DIAGNOSTICS; X-RAY SPECTRA; NEODYMIUM LASERS; PHOTON EMISSION; PLASMA INSTABILITY; PULSES; RAMAN EFFECT; EMISSION; INSTABILITY; LASERS; PLASMA; SOLID STATE LASERS; SPECTRA; 700102* - Fusion Energy- Plasma Research- Diagnostics; 700108 - Fusion Energy- Plasma Research- Wave Phenomena; 700208 - Fusion Power Plant Technology- Inertial Confinement Technology

Citation Formats

Young, F C, Herbst, M J, Manka, C K, Obenschain, S P, and Gardner, J H. Increased hot-electron production at quarter-critical density in long-scale-length laser-plasma interactions. United States: N. p., 1985. Web. doi:10.1103/PhysRevLett.54.2509.
Young, F C, Herbst, M J, Manka, C K, Obenschain, S P, & Gardner, J H. Increased hot-electron production at quarter-critical density in long-scale-length laser-plasma interactions. United States. doi:10.1103/PhysRevLett.54.2509.
Young, F C, Herbst, M J, Manka, C K, Obenschain, S P, and Gardner, J H. Mon . "Increased hot-electron production at quarter-critical density in long-scale-length laser-plasma interactions". United States. doi:10.1103/PhysRevLett.54.2509.
@article{osti_5467118,
title = {Increased hot-electron production at quarter-critical density in long-scale-length laser-plasma interactions},
author = {Young, F C and Herbst, M J and Manka, C K and Obenschain, S P and Gardner, J H},
abstractNote = {Hot-electron fractions measured in Nd-laser-plasma interactions at 10/sup 14/ W/cm/sup 2/ increase from <0.02% to 0.3% as plasma scale length at quarter-critical density (n/sub c//4) is systematically increased from 140 to 320 ..mu..m. Correlated x-ray and 3..omega../2 emissions indicate that the hot electrons are produced by an n/sub c//4 instability.},
doi = {10.1103/PhysRevLett.54.2509},
journal = {Phys. Rev. Lett.; (United States)},
number = ,
volume = 54:23,
place = {United States},
year = {1985},
month = {6}
}