Demonstration of radiation pulse shaping with nested-tungsten-wire-array Z pinches for high-yield inertial confinement fusion

被引:37
作者
Cuneo, ME
Vesey, RA
Sinars, DB
Chittenden, JP
Waisman, EM
Lemke, RW
Lebedev, SV
Bliss, DE
Stygar, WA
Porter, JL
Schroen, DG
Mazarakis, MG
Chandler, GA
Mehlhorn, TA
机构
[1] Sandia Natl Labs, Albuquerque, NM 87185 USA
[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BW, England
[3] Schafer Corp, Livermore, CA 94550 USA
关键词
D O I
10.1103/PhysRevLett.95.185001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Nested wire-array Z pinches are shown to generate soft x-ray radiation pulse shapes required for three-shock isentropic compression and hot-spot ignition of high-yield inertial confinement fusion capsules. We demonstrate a reproducible and tunable foot pulse (first shock) produced by interaction of the outer and inner arrays. A first-step pulse (second shock) is produced by inner array collision with a central CH2 foam target. Stagnation of the inner array at the axis produces the third shock. Capsules optimized for several of these shapes produce 290-900 MJ fusion yields in 1D simulations.
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页数:4
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