Velocity and Timing of Multiple Spherically Converging Shock Waves in Liquid Deuterium

被引：57

作者：

Boehly, T. R. ^{[1
]}

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

Seka, W. ^{[1
]}

Barrios, M. A. ^{[2
]}

Celliers, P. M. ^{[2
]}

Hicks, D. G. ^{[2
]}

Collins, G. W. ^{[2
]}

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

Marozas, J. A. ^{[1
]}

Meyerhofer, D. D. ^{[1
,3
,4
]}

机构：

[1] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[3] Univ Rochester, Dept Mech Engn, Rochester, NY 14623 USA

[4] Univ Rochester, Dept Phys, Rochester, NY 14623 USA

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 19期

关键词：

NATIONAL IGNITION FACILITY; LASER;

D O I：

10.1103/PhysRevLett.106.195005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The fuel entropy and required drive energy for an inertial confinement fusion implosion are set by a sequence of shocks that must be precisely timed to achieve ignition. This Letter reports measurements of multiple spherical shock waves in liquid deuterium that facilitate timing inertial confinement fusion shocks to the required precision. These experiments produced the highest shock velocity observed in liquid deuterium (U(s) = 135 km/s at similar to 2500 GPa) and also the first observation of convergence effects on the shock velocity. Simulations model the shock-timing results well when a nonlocal transport model is used in the coronal plasma.

引用

页数：4

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