Concurrent operation of 10 gyrotrons at W7-X experience and improvement opportunities
Keyword(s):
Start Up
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At the stellarator Wendelstein 7-X (W7-X) Electron Cyclotron Resonance Heating (ECRH) is the main heating system for steady-state operation and was the only available heating system during the operation phase OP1.2a in 2017. The ECRH, equipped with 10 operational 140 GHz gyrotrons [1], was used for different tasks at W7-X such as wall conditioning, controlled plasma start-up from the neutral gas up to steady state plasma control and different heating scenarios such as X2-mode and O2-mode heating as well as current drive (ECCD). The operational experiences and improvement opportunities of the ECRH plant will be discussed.
2015 ◽
Vol 43
(1)
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pp. 485-489
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2009 ◽
Vol 11
(5)
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pp. 619-624
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2006 ◽
Vol 45
(10A)
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pp. 7911-7913
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2007 ◽
Vol 52
(2)
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pp. 313-320
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