Comparison of scrape-off layer behaviour between DIV-I and DIV-II operations on ASDEX-Upgrade

被引：12

作者：

Schweinzer, J ^{[1
]}

Sandmann, W ^{[1
]}

Haas, G ^{[1
]}

Neuhauser, J ^{[1
]}

Murmann, H ^{[1
]}

Salzmann, H ^{[1
]}

机构：

[1] Max Planck Inst Plasmaphys, EURATOM Assoc, D-85748 Garching, Germany

来源：

JOURNAL OF NUCLEAR MATERIALS | 1999年 / 266卷

关键词：

ASDEX-Upgrade; divertor;

D O I：

10.1016/S0022-3115(98)00623-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The divertor geometry on ASDEX-Upgrade has changed from an open to a more closed configuration. The effects of this change on midplane scrape-off layer profiles for temperature and density are discussed. Investigations concerning the accuracy of separatrix positions are described. The relation between neutral gas flux density in the divertor and midplane density is analysed and scalings are presented. No decrease in the maximum achievable density in the II-mode with the new dosed divertor in comparison to the former open one has been found. For comparable discharges the scrape-off layer density for the closed divertor has been found to be higher or at least as high as for the open divertor. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：934 / 939

页数：6