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DOI: 10.1016/S0920-3796(03)00100-5
Zitationen: 19
Web of Science
Zitationen: 21

Plans for a new ECRH system at ASDEX upgrade

Leuterer, F.; Kirov, K.; Monaco, F.; Münich, M.; Schütz, H.; Ryter, F.; Wagner, D.; Wilhelm, R.; Zohm, H.; Franke, T.; Voigt, K.; Thumm, Manfred; Heidinger, R.; Dammertz, G.; Koppenburg, K.; Gantenbein, G.; Hailer, H.; Kasparek, W.; Müller, G. A.; Bogdashov, A.; ... mehr

Construction of a new ECRH system for ASDEX Upgrade with a power of 4 MW and a pulse duration of 10 sec with linearly polarized Gaussian output has started last year. Four gyrotrons with single stage depressed collector will generate the power. A particular feature will be the possibility to operate them at different frequencies. The first gyrotron can work at 105 GHz and at 140 GHz, making use of the resonances of the diamond vacuum window at these frequencies. A second step-tuneable gyrotron is designed to work at several frequencies within the same interval. A diamond output window mounted at the Brewster angle allows broadband transmission. Two gyrotrons will be fed from one thyristor controlled power supply 70 kV / 80 A. However, each gyrotron will have its own series tetrode modulator with an output of 60 kV / 40 A.The body will be driven from a switching power supply 45 kV / 0.3 A with 5 kHz modulation capability. The whole system is planned to be operated remotely. The transmission line, similar to the one which is used now in the first ASDEX Upgrade ECRH system, will have a quasioptical section next to the gyrotrons and a 7 ... mehr

Zugehörige Institution(en) am KIT Institut für Materialforschung (IMF)
Institut für Höchstfrequenztechnik und Elektronik (IHE)
Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Zeitschriftenaufsatz
Jahr 2003
Sprache Englisch
Identifikator ISSN: 0920-3796, 1873-7196
KITopen ID: 1000001322
HGF-Programm 31.04.05; LK 01
Erschienen in Fusion engineering and design
Band 66-68
Seiten 537-542
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