EXPERIMENTAL SIMULATION OF A GASEOUS PLASMA COLLECTOR

被引:13
作者
FIKSEL, G
KISHINEVSKY, M
HERSHKOWITZ, N
机构
[1] University of Wisconsin - Madison, Department of Nuclear Engineering and Engineering Physics, Madison
[2] Soreq Nuclear Center, Yavne
来源
PHYSICS OF FLUIDS B-PLASMA PHYSICS | 1990年 / 2卷 / 04期
关键词
D O I
10.1063/1.859269
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
Hydrogen plasma with a density of 3x1014 cm-3 and electron temperature of 20 eV is injected parallel to a 0.1 T B field, into hydrogen (and helium) neutral gas at 0.1-2 Torr. This plasma is opaque to molecular hydrogen but transparent to Frank-Condon neutrals. The axial density and temperature scale length increased with decreasing gas pressure but were insensitive to plasma density and axial magnetic field strength. The plasma decay is explained by radial ion diffusion resulting from collisions with fast neutrals while the fast neutral density is determined by the radial pressure balance between fast neutrals and the cold background gas. © 1990 American Institute of Physics.
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页码:837 / 841
页数:5
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