Hot electron production by Raman scattering in a preformed underdense plasma. Annual report, 1 January 1981-30 June 1982

Technical Report · Mon Nov 01 04:00:00 EST 1982

OSTI ID:6518965

Berger, R G; Brooks, R D; Pietrzyk, Z A

The theory and results of the first phase of our investigations of Stimulated Raman scattering (SRS) and fast electron production in an underdense plasma were discussed. Since our plasma was preformed with n everywhere less than 1/4 n/sub c/, a situation generally much different from laser produced plasmas, our conditions allowed the observing of hot electrons generated exclusively by the SRS process, a situation rare among SRS experiments. Using 10.6..mu.. radiation from a pulsed CO/sub 2/ laser, suprathermal electron distributions have been detected far from hydrogen, argon, neon and nitrogen plasmas with Maxwellian shape and temperatures from 29 to 105 keV. This is the first reported experimental evidence of the correlation of fast electrons to SRS.

• Research Organization: Washington Univ., Seattle (USA)
• DOE Contract Number: AS08-81DP40137
• OSTI ID: 6518965
• Report Number(s): DOE/DP/40137-1; ON: DE83005739
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
DISPERSION RELATIONS
ELECTRON TEMPERATURE
IMPLOSIONS
INSTABILITY
LASER IMPLOSIONS
LASER TARGETS
LASER-PRODUCED PLASMA
PARAMETRIC INSTABILITIES
PLASMA
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
RAMAN EFFECT
TARGETS