Particle balance measurements during detachment in a gas-target divertor simulator

被引：27

作者：

Hollmann, EM ^{[1
]}

Pigarov, AY ^{[1
]}

Seraydarian, R ^{[1
]}

Whyte, DG ^{[1
]}

Krasheninnikov, SI ^{[1
]}

机构：

[1] Univ Calif San Diego, Energy Res Ctr, La Jolla, CA 92093 USA

来源：

PHYSICS OF PLASMAS | 2002年 / 9卷 / 04期

关键词：

D O I：

10.1063/1.1452103

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：

Particle balance measurements have been performed in low-density [N-e(r=0)<10(11) cm(-3)], low temperature [T-e(r=0)<5 eV] hydrogen plasma discharges in a linear gas-target divertor simulator device. Axial density drops of up to a factor 50 were observed at high gas-target pressures (P-target approximate to 30 mTorr). For these highly detached plasmas, the largest particle loss term was found to be radial transport to the side walls. These results show that cross-field transport can be important for plasma detachment, which is traditionally thought of as resulting from volume recombination. (C) 2002 American Institute of Physics.

引用

页码：1226 / 1232

页数：7

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