Tuning the implosion symmetry of ICF targets via controlled crossed-beam energy transfer.
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.
Michel
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P
Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
Divol
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Williams
E A
EA
Weber
S
S
Thomas
C A
CA
Callahan
D A
DA
Haan
S W
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Salmonson
J D
JD
Dixit
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Hinkel
D E
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Edwards
M J
MJ
Macgowan
B J
BJ
Lindl
J D
JD
Glenzer
S H
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Suter
L J
LJ