Electrical and thermal analyses for the radio-frequency circuit of ITER NBI ion source

This paper covers specific electrical and thermal aspects of the radio-frequency (RF) circuit which supplies the ion source of the International Thermonuclear Experimental Reactor (ITER) Neutral Beam Injector (NBI). Firstly, a matching circuit for the RF Antennas is presented and a possible solution...

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Bibliographic Details
Published in:Fusion engineering and design 2009-06, Vol.84 (7), p.2025-2030
Main Authors: Zamengo, A., Recchia, M., Kraus, W., Bigi, M., Martens, C., Toigo, V.
Format: Article
Language:English
Subjects:
Applied sciences
Controled nuclear fusion plants
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Installations for energy generation and conversion: thermal and electrical energy
ITER neutral beam injector
Radio-frequency ion source
RF power supply
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Summary:This paper covers specific electrical and thermal aspects of the radio-frequency (RF) circuit which supplies the ion source of the International Thermonuclear Experimental Reactor (ITER) Neutral Beam Injector (NBI). Firstly, a matching circuit for the RF Antennas is presented and a possible solution for the matching components discussed, in relation to the anticipated equivalent circuit parameters of the RF driven plasma. Secondly, the thermal behaviour of the RF transmission line is analyzed, utilising finite element tools, to evaluate the RF line overtemperature under the heaviest foreseen operating conditions.
ISSN:0920-3796
1873-7196
DOI:10.1016/j.fusengdes.2009.01.007