Modeling of mixed-phasing antenna-plasma interactions applied to JET A2 antennas

D. d'Ippolito, J.R. Myra, P.M. Ryan, E. Righi, Jukka Heikkinen, P. Lamalle, J.-M. Noterdaeme

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

The use of mixed (monopole-dipole) phasing of a set of ICRF antennas is potentially useful to optimize tokamak performance and to do interesting physics experiments. However, recent mixed-phasing experiments on JET, described here, showed undesirable antenna-plasma interactions under certain circumstances. We explore a possible physical mechanism: parallel currents flowing between adjacent antennas with different phasings can lead to arcing on the antenna with the largest sheath voltage. Means of controlling the interaction are discussed.
Original languageEnglish
Title of host publicationRadio Frequency Power in Plasmas
Subtitle of host publication14th Topical Conference
Place of PublicationNew York
PublisherAmerican Institute of Physics (AIP)
Pages114-117
ISBN (Print)978-0-7354-0038-2
DOIs
Publication statusPublished - 2001
MoE publication typeA4 Article in a conference publication
Event14th Topical Conference of Radio Frequency Power in Plasmas - Oxnard, United States
Duration: 7 May 20019 May 2001

Publication series

SeriesAIP Conference Proceedings
Volume595
ISSN0094-243X

Conference

Conference14th Topical Conference of Radio Frequency Power in Plasmas
Country/TerritoryUnited States
CityOxnard
Period7/05/019/05/01

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