Laser scattering in large-scale-length plasmas relevant to National Ignition Facility hohlraums

Conference · Tue Oct 01 00:00:00 EDT 1996

OSTI ID:435065

MacGowan, B J; Berger, R L; Afeyan, B B ^[1]

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1. and others

We have used homogeneous plasmas of high density (up to 1.3 X 10{sup 21} electrons per cm{sup 3}) and temperature ({approximately} 3 keV) with large density scale lengths ({approximately}2 mm) to approximate conditions within National Ignition Facility (NIF) hohlraums. Within these plasmas we have studied the dependence of stimulated Raman (SRS) and Brillouin (SBS) scattering on beam smoothing and plasma conditions at the relevant laser intensity (3{omega}, 2 X 10{sup 15}Wcm{sup 2}). Both SBS and SRS are reduced by the use of smoothing by spectral dispersion (SSD).

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 435065
• Report Number(s): UCRL-JC-123545; CONF-961005-13; ON: DE97050765; TRN: 97:004335
• Resource Relation: Conference: 16. International Atomic Energy Agency (IAEA) international conference on plasma physics and controlled nuclear fusion research, Montreal (Canada), 7-11 Oct 1996; Other Information: PBD: Oct 1996
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
LASER RADIATION
SCATTERING
LASER FUSION REACTORS
LASER-PRODUCED PLASMA
INERTIAL CONFINEMENT
LASER IMPLOSIONS
LASER TARGETS
GOLD
BRILLOUIN EFFECT
RAMAN EFFECT