The compatibility of high confinement times and complete divertor detachment in ASDEX-Upgrade
- 1 November 1995
- journal article
- Published by IOP Publishing in Plasma Physics and Controlled Fusion
- Vol. 37 (11A) , A37-A51
- https://doi.org/10.1088/0741-3335/37/11a/003
Abstract
The completely detached high confinement (CDH) regime established recently in high power ASDEX-Upgrade single null divertor discharges is described. The standard CDH mode scenario with feedback controlled external deuterium and neon puffing is analysed in detail with respect to its divertor detachment and confinement properties. Impurity transport and pumping effects and the density operation windows of the CDH mode are outlined. First results with other impurity radiators (N,Ar) are given. Finally the CDH mode operation space is discussed in terms of main chamber and scrape-off layer plus divertor radiation and possible consequences for future fusion experiments are outlined.Keywords
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