ELECTRON-DISTRIBUTION ANISOTROPY IN LASER-PRODUCED PLASMAS FROM X-RAY-LINE POLARIZATION MEASUREMENTS

被引：146

作者：

KIEFFER, JC

MATTE, JP

PEPIN, H

CHAKER, M

BEAUDOIN, Y

JOHNSTON, TW

CHIEN, CY

COE, S

MOUROU, G

DUBAU, J

机构：

[1] UNIV MICHIGAN,ULTRA FAST SCI LAB,ANN ARBOR,MI 48109

[2] OBSERV PARIS,F-92195 MEUDON,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.68.480

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first measurements of significant polarization of the He-like emission in a laser-produced plasma. From these measurements we infer a negative second-order (i.e., oblate) anisotropy of the electron velocity distribution function in the energy deposition region. This result is in agreement with our kinetic Fokker-Planck calculations which indicate non-Maxwellian behavior and strong anisotropy due to nonlocal electron heat flow.

引用

收藏

页码：480 / 483

页数：4

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