The W7-X ECRH Plant: Recent Achievements

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 reduce...

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Bibliographic Details
Published in:AIP conference proceedings 2007-01, Vol.933 (1)
Main Authors: Erckmann, V., Braune, H., Laqua, H. P., Michel, G., Weissgerber, M., Brand, P., Kasparek, W., Dammertz, G., Gantenbein, G., Schmid, M., Thumm, M.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMMISSIONING
CURRENT-DRIVE HEATING
ECR HEATING
ELECTRIC CURRENTS
GHZ RANGE
MICROWAVE AMPLIFIERS
OPERATION
PLASMA
POWER DISTRIBUTION
RF SYSTEMS
WENDELSTEIN-7 STELLARATOR
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Summary: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.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2800522