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Verlagsausgabe
DOI: 10.5445/IR/1000003719
Veröffentlicht am 16.04.2018
Originalveröffentlichung
DOI: 10.1088/1742-6596/25/1/008
Scopus
Zitationen: 4

HV-system for CW-gyrotrons at W7-X and the relevance for ITER

Braune, H.; Brand, P.; Krampitz, R.; Leonhardt, W.; Mellein, D.; Michel, G.; Müller, G.; Sachtleben, J.; Winkler, M.; W7-X ECRH Teams at IPP, IPF and FZK

Abstract:
Electron Cyclotron Resonance Heating (ECRH) is the main heating method for the Wendelstein 7-X Stellarator (W7-X), which is under construction at IPP-Greifswald. A 10 MW ECRH plant with CW-capability at 140 GHz is under construction to meet the scientific objectives. The microwave power is generated by 10 gyrotrons with 1 MW each, two gyrotrons are operational at IPP in Greifswald. The tubes are equipped with a single-stage depressed collector for energy recovery and operate with an output power modulation between 0.3 and 1 MW with a sinusoidal frequency of up to 10 kHz, which is achieved by modulating the depression voltage and is an interesting feature for NTM control at ITER. The general features of the ECRH-plant such as frequency, power, cw-capability, flexibility and the experimental experience are of high relevance for the ITER system. Each gyrotron is fed by two high-voltage sources. A high-power supply for driving the electron beam and a precision low-power supply for beam acceleration. The high-power facility consists of modular solid state HV-supplies (-65 kV, 50/100 A) providing fast power control and high flexibility. T ... mehr


Zugehörige Institution(en) am KIT Institut für Höchstfrequenztechnik und Elektronik (IHE)
Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Zeitschriftenaufsatz
Jahr 2005
Sprache Englisch
Identifikator ISSN: 1742-6588, 1742-6596
URN: urn:nbn:de:swb:90-37199
KITopen ID: 1000003719
HGF-Programm 31.20.60; LK 01
Erschienen in Journal of physics / Conference Series
Band 25
Seiten 56-65
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