Laser-driven plasma loader for shockless compression and acceleration of samples in the solid state

被引：140

作者：

Edwards, J ^{[1
]}

Lorenz, KT ^{[1
]}

Remington, BA ^{[1
]}

Pollaine, S ^{[1
]}

Colvin, J ^{[1
]}

Braun, D ^{[1
]}

Lasinski, BF ^{[1
]}

Reisman, D ^{[1
]}

McNaney, JM ^{[1
]}

Greenough, JA ^{[1
]}

Wallace, R ^{[1
]}

Louis, H ^{[1
]}

Kalantar, D ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.92.075002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new method for shockless compression and acceleration of solid materials is presented. A plasma reservoir pressurized by a laser-driven shock unloads across a vacuum gap and piles up against an Al sample thus providing the drive. The rear surface velocity of the Al was measured with a line VISAR, and used to infer load histories. These peaked between similar to0.14 and 0.5 Mbar with strain rates similar to10(6)-10(8) s(-1). Detailed simulations suggest that apart from surface layers the samples can remain close to the room temperature isentrope. The experiments, analysis, and future prospects are discussed.

引用

页数：4

共 38 条

[1] The use of shock-structure methods for evaluating high-pressure material properties [J].