A simple time-dependent analytic model of the P{sub 2} asymmetry in cylindrical hohlraums

Journal Article · Sat May 01 04:00:00 EDT 1999 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.873465· OSTI ID:344943

Landen, O L; Amendt, P A; Suter, L J; Turner, R E; Glendinning, S G; Haan, S W; Pollaine, S M; Hammel, B A; Tabak, M; Rosen, M D; Lindl, J D ^[1]

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1. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94550 (United States)

A simple time-dependent analytic view factor model for the P{sub 2} asymmetry in cylindrical hohlraums is presented. The model includes the effects of hohlraum wall motion, time-varying hohlraum wall albedo and time-varying hohlraum-to-capsule diameter. The results of the model compare well with predictions from two-dimensional radiation hydrodynamics computer simulations and with time-resolved hohlraum symmetry data obtained at the Nova laser facility [J. T. Hunt and D. R. Speck, Opt. Eng. {bold 28}, 461 (1989)] and Omega laser facility [J. M. Sources, R. L. McCrory, C. P. Verdon {ital et al.}, Phys. Plasmas {bold 3}, 2108 (1996)]. The model is also extended to the more complicated but relevant case of a multiple-ring cylindrical hohlraum illumination geometry, the baseline scheme for the National Ignition Facility [J. A. Paisner, J. D. Boyes, S. A. Kumpan, and M. Sorem, ICF Quart. {bold 5}, 110 (1995)]. {copyright} {ital 1999 American Institute of Physics.}

• OSTI ID: 344943
• Report Number(s): CONF-981127--
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 6; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALBEDO
ANALYTICAL SOLUTION
BEAM-PLASMA SYSTEMS
DEUTERIUM
INERTIAL CONFINEMENT
LASER RADIATION
PLASMA SIMULATION
SYMMETRY
THERMONUCLEAR IGNITION
TRITIUM