Inertial confinement fusion ablator physics experiments on Saturn and nova

被引:26
作者
Olson, RE [1 ]
Porter, JL [1 ]
Chandler, GA [1 ]
Fehl, DL [1 ]
Jobe, DO [1 ]
Leeper, RJ [1 ]
Matzen, MK [1 ]
McGum, JS [1 ]
Noack, DD [1 ]
Ruggles, LE [1 ]
Sawyer, P [1 ]
Torres, JA [1 ]
Vargas, M [1 ]
Zagar, DM [1 ]
Kornblum, HN [1 ]
Orzechowski, TJ [1 ]
Phillion, DW [1 ]
Suter, LJ [1 ]
Thiessen, AR [1 ]
Wallace, RJ [1 ]
机构
[1] LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA
关键词
D O I
10.1063/1.872295
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
The Saturn pulsed power accelerator [R. B. Spielman et al., in Proceedings of the 2nd International Conference on Dense Z-pinches, Laguna Beach, CA, 1989, edited by N. R. Pereira, J. Davis, and N. Rostoker (American Institute of Physics, New York, 1989), p. 3] at Sandia National Laboratories (SNL) and the Nova laser [J. T. Hunt and D. R. Speck, Opt. Eng. 281 161 (1989)] at Lawrence Livermore National Laboratory (LLNL) have been used to explore techniques for studying the behavior of ablator material in x-ray radiation environments comparable in magnitude, spectrum, and duration to those that would be experienced in National Ignition Facility (NTF) hohlraums [J. D. Lindl, Phys. Plasmas 2, 3933 (1995)]. The large x-ray outputs available from the Saturn pulsed-power-driven 2 pinch have enabled us to drive hohlraums of full MF ignition scale size at radiation temperatures and time scales comparable to those required for the low-power foot pulse of an ignition capsule. The high-intensity drives available in the Nova laser have allowed us to study capsule ablator physics in smaller-scale hohlraums at radiation temperatures and time scales relevant to the peak power pulse for an ignition capsule. Taken together, these experiments have pointed the way to possible techniques for testing radiation-hydrodynamics code predictions of radiation flow, opacity, equation of state, and ablator shock velocity over the range of radiation environments that will be encountered in a NIF hohlraum. (C) 1997 American Institute of Physics.
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页码:1818 / 1824
页数:7
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