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Originalveröffentlichung
DOI: 10.1016/S0920-3796(03)00078-4
Scopus
Zitationen: 26
Web of Science
Zitationen: 26

Towards a 2 MW, CW, 170 GHz coaxial cavity gyrotron for ITER

Piosczyk, B.; Arnold, A.; Budig, H.; Dammertz, G.; Dumbrajs, O.; Drumm, O.; Kartikeyan, M. V.; Kuntze, M.; Thumm, Manfred; Yang, X.

Abstract:
The development work on coaxial cavity gyrotrons at the Forschungszentrum (FZK) Karlsruhe has been performed as an ITER task. In agreement with the final goal of the task the feasibility of manufacturing of a 2 MW, CW coaxial gyrotron operated at 170 GHz as could be used for electron cyclotron heating and current drive in the ITER tokamak has been demonstrated and all information necessary for a technical design and industrial manufacturing has been obtained. The experimental investigations have been performed on a coaxial gyrotron operated in the TE31,17 mode at 165 GHz and designed for a nominal RF output power of 1.5 MW. The gyrotron is of modular type and its technical performance limits the operation to short pulses. With this gyrotron a maximum RF output power of 2.2 MW has been reached in short pulse (typically 1 ms) operation. At the nominal RF output power of 1.5 MW an efficiency of 30 % has been obtained which has been enhanced to 48 % in operation with a single-stage depressed collector. All problems specific to the coaxial arrangement have been investigated. The stability and the losses of the coaxial insert has been mea ... mehr


Zugehörige Institution(en) am KIT 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: 1000001320
HGF-Programm 31.04.03; LK 01
Erschienen in Fusion engineering and design
Band 66-68
Seiten 481-485
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