REDUCTION OF PLASMA WALL INTERACTION BY PLASMA BIASING

被引：12

作者：

COUTURE, P ^{[1
]}

TERREAULT, B ^{[1
]}

BOURQUE, G ^{[1
]}

LACHAMBRE, JL ^{[1
]}

PACHER, GW ^{[1
]}

PACHER, HD ^{[1
]}

WHYTE, D ^{[1
]}

ZUZAK, W ^{[1
]}

机构：

[1] INST NATL RECH SCI ENERGIE VARENNES, CTR CANADIEN FUS MAGNET, VARENNES J3X 1S1, QUEBEC, CANADA

来源：

JOURNAL OF NUCLEAR MATERIALS | 1990年 / 176卷

关键词：

D O I：

10.1016/0022-3115(90)90151-C

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Negative and positive biases of up to 225 V and 125 ms duration have been applied to the main limiter during steady discharges in the TdeV tokamak. We focus on recycling, impurity influx and plasma purity, as measured by mass spectrometry, line emission of low ionisation states and bremsstrahlung emission. With negative (positive) biasing, recycling and impurity influx tend to decrease (increase). CO production is most directly correlated with the bias, and is likely due to ion-induced desorption from the wall. The Z(eff) radial profile is modified. Particle transport is apparently reduced under negative biasing.

引用

页码：825 / 829

页数：5

共 16 条

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