MEASUREMENTS OF INVERSE BREMSSTRAHLUNG ABSORPTION AND NON-MAXWELLIAN ELECTRON VELOCITY DISTRIBUTIONS

被引：150
|
作者：
LIU, JM
DEGROOT, JS
MATTE, JP
JOHNSTON, TW
DRAKE, RP
机构：
[1] INST NATL RECH SCI ENERGIE & MAT,VARENNES J3X 1S2,PQ,CANADA
[2] LAWRENCE LIVERMORE NATL LAB,PLASMA PHYS RES INST,LIVERMORE,CA 94551
来源：
PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 17期
关键词：
D O I：
10.1103/PhysRevLett.72.2717
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Non-Maxwellian (flattopped) electron velocity distributions resulting from inverse bremsstrahlung of intense microwaves are measured directly for the first time in experiments performed on the UCD AURORA II device. The experiments are performed in the afterglow of a pulsed discharge plasma that is moderately collisional and sufficiently ionized (approximately 1%) that Coulomb collisions are dominant. Langmuir probe measurements indicate that the isotropic component of the electron velocity distribution is non-Maxwellian in very good agreement with electron kinetic (Fokker-Planck) simulations.
引用
收藏
页码：2717 / 2720
页数：4
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