The W7-X ECRH Plant: Recent Achievements.

Authors :: Erckmann, V.
Brand, P.
Braune, H.
Dammertz, G.
Gantenbein, G.
Kasparek, W.
Laqua, H. P.
Michel, G.
Schmid, M.
Thumm, M.
Weissgerber, M.
Source :: AIP Conference Proceedings; 9/15/2007, Vol. 933 Issue 1, p421-424, 4p, 2 Graphs
Publication Year :: 2007
Abstract: The 10 MW, 140 GHz, CW ECRH-plant for W7-X is in an advanced state of commissioning and the installation was used to investigate advanced applications for extended heating- and current drive scenarios. The operation of the TED gyrotrons was recently extended to a 2nd frequency of 103.6 GHz at reduced output power and first results are presented. An improved collector sweep system for the W7-X gyrotrons with enhanced power capability and smooth power distribution was developed, results are reported. [ABSTRACT FROM AUTHOR]