IMPURITY BEHAVIOR IN HELIOTRON-E

被引：3

作者：

KONDO, K

MIZUUCHI, T

MATSUURA, H

SANO, F

SUDO, S

ZUSHI, H

OKADA, H

BESSHOU, S

NAGASAKI, K

HIGASHIJIMA, S

KURIMOTO, Y

WAKATANI, M

OBIKI, T

机构：

[1] UNIV OSAKA PREFECTURE,COLL ENGN,SAKAI 511,JAPAN

[2] NATL INST FUS SCI,CHIKUSA,NAGOYA 46401,JAPAN

来源：

JOURNAL OF NUCLEAR MATERIALS | 1992年 / 196卷

关键词：

D O I：

10.1016/S0022-3115(06)80050-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The reduction of metallic impurity was found in a carbon limiter configuration in Heliotron E. In order to investigate the impurity penetration into the plasma, the distance between the outermost magnetic surface and the vacuum vessel wall was varied by inserting a carbon rail limiter. The analysis of vacuum ultraviolet impurity spectra and charge exchange neutral fluxes shows that the decrease of the impurity production rates by charge exchange neutral particles is the most probable reason to explain the experimental results. Moreover the electron temperature and density profiles in the limiter shadow provide an ability to screen metallic impurity influxes from the wall.

引用

页码：303 / 307

页数：5

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