Measurement of the shell decompression in direct-drive inertial-confinement-fusion implosions

被引：19

作者：

Michel, D. T. ^{[1
]}

Hu, S. X. ^{[1
]}

Davis, A. K. ^{[1
]}

Glebov, V. Yu. ^{[1
]}

Goncharov, V. N. ^{[1
]}

Igumenshchev, I. V. ^{[1
]}

Radha, P. B. ^{[1
]}

Stoeckl, C. ^{[1
]}

Froula, D. H. ^{[1
]}

机构：

[1] Univ Rochester, Lab Laser Energet, Rochester, NY 14636 USA

来源：

PHYSICAL REVIEW E | 2017年 / 95卷 / 05期

关键词：

RAYLEIGH-TAYLOR GROWTH; PLANAR TARGETS; LASER; HYDRODYNAMICS; PERFORMANCE; DISPERSION; LIGHT;

D O I：

10.1103/PhysRevE.95.051202

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：

A series of direct-drive implosions performed on OMEGA were used to isolate the effect of an adiabat on the in-flight shell thickness. The maximum in-flight shell thickness was measured to decrease from 75 +/- 2 to 60 +/- 2 mu m when the adiabat of the shell was reduced from 6 to 4.5, but when decreasing the adiabat further (1.8), the shell thickness increased to 75 +/- 2 mu m due to the growth of the Rayleigh-Taylor instability. Hydrodynamic simulations suggest that a laser imprint is the dominant seed for these nonuniformities.

引用

页数：5

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