Tuning the implosion symmetry of ICF targets via controlled crossed-beam energy transfer

Journal Article · Tue Jul 29 00:00:00 EDT 2008 · Physical Review Letters

OSTI ID:947236

Michel, P; Divol, L; Williams, E; Weber, S; Thomas, C A; Callahan, D A; Haan, S W; Salmonson, J D; Dixit, S; Hinkel, D E; Edwards, M J; MacGowan, B J; Lindl, J D; Glenzer, S H; Suter, L

Radiative hydrodynamics simulations of ignition experiments show that energy transfer between crossing laser beams allows tuning of the implosion symmetry. A new full-scale, three dimensional quantitative model has been developed for crossed-beam energy transfer, allowing calculations of the propagation and coupling of multiple laser beams and their associated plasma waves in ignition hohlraums. This model has been implemented in a radiative-hydrodynamics code, demonstrating control of the implosion symmetry by a wavelength separation between cones of laser beams.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 947236
• Report Number(s): LLNL-JRNL-406091; PRLTAO; TRN: US0901829
• Journal Information: Physical Review Letters, Vol. 102; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
CONES
ENERGY TRANSFER
HYDRODYNAMICS
IGNITION
IMPLOSIONS
LASERS
PLASMA WAVES
SYMMETRY
TUNING
WAVELENGTHS