Theory of laser-induced adiabat shaping in inertial fusion implosions: The relaxation method

Journal Article · Fri Apr 15 00:00:00 EDT 2005 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.1856481· OSTI ID:20736518

Betti, R; Anderson, K; Knauer, J; Collins, T J.B.; McCrory, R L; McKenty, P W; Skupsky, S ^[1]

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1. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)

The theory of the adiabat shaping induced by a strong shock propagating through a relaxed density profile is carried out for inertial confinement fusion (ICF) capsules. The relaxed profile is produced through a laser prepulse, while the adiabat-shaping shock is driven by the foot of the main laser pulse. The theoretical adiabat profiles accurately reproduce the simulation results. ICF capsules with a shaped adiabat are expected to benefit from improved hydrodynamic stability while maintaining the same one-dimensional performances as flat-adiabat shells.

• OSTI ID: 20736518
• Journal Information: Physics of Plasmas, Vol. 12, Issue 4; Other Information: DOI: 10.1063/1.1856481; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DIRECT DRIVE LASER IMPLOSION
ICF DEVICES
INERTIAL CONFINEMENT
PLASMA
SHOCK WAVES