THE COMPATIBILITY OF HIGH CONFINEMENT TIMES AND COMPLETE DIVERTOR DETACHMENT IN ASDEX-UPGRADE

Citation
J. Neuhauser et al., THE COMPATIBILITY OF HIGH CONFINEMENT TIMES AND COMPLETE DIVERTOR DETACHMENT IN ASDEX-UPGRADE, Plasma physics and controlled fusion, 37, 1995, pp. 37-51
Citations number
34
Categorie Soggetti
Phsycs, Fluid & Plasmas
ISSN journal
07413335
Volume
37
Year of publication
1995
Supplement
11A
Pages
37 - 51
Database
ISI
SICI code
0741-3335(1995)37:<37:TCOHCT>2.0.ZU;2-J
Abstract
The completely detached high confinement (CDH) regime established rece ntly in high power ASDEX-Upgrade single null divertor discharges is de scribed. The standard CDH mode scenario with feedback controlled exter nal deuterium and neon puffing is analysed in detail with respect to i ts divertor detachment and confinement properties. Impurity transport and pumping effects and the density operation window of the CDH mode a re outlined. First results with other impurity radiators (N, Ar) are g iven. Finally the CDH mode operation space is discussed in terms of ma in chamber and scrape-off layer plus divertor radiation and possible c onsequences for future fusion experiments are outlined.