Ion cyclotron resonance heating systems upgrade toward high power and CW operations in WEST

Julien Hillairet, Patrick Mollard, Yanping Zhao, Jean Michel Bernard, Yuntao Song, Arnaud Argouarch, Gilles Berger-By, Nicolas Charabot, Gen Chen, Zhaoxi Chen, Laurent Colas, Jean Marc Delaplanche, Pierre Dumortier, Frédéric Durodié, Annika Ekedahl, Nicolas Fedorczak, Fabien Ferlay, Marc Goniche, Jean Claude Hatchressian, Walid HelouJonathan Jacquot, Emmanuel Joffrin, Xavier Litaudon, Gilles Lombard, Riccardo Maggiora, Roland Magne, Daniele Milanesio, Jean Claude Patterlini, Marc Prou, Jean Marc Verger, Robert Volpe, Karl Vulliez, Yongsheng Wang, Konstantin Winkler, Qingxi Yang, Shuai Yuan

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

Abstract

The design of the WEST (Tungsten-W Environment in Steady-state Tokamak) Ion cyclotron resonance heating antennas is based on a previously tested conjugate-T Resonant Double Loops prototype equipped with internal vacuum matching capacitors. The design and construction of three new WEST ICRH antennas are being carried out in close collaboration with ASIPP, within the framework of the Associated Laboratory in the fusion field between IRFM and ASIPP. The coupling performance to the plasma and the load-tolerance have been improved, while adding Continuous Wave operation capability by introducing water cooling in the entire antenna. On the generator side, the operation class of the high power tetrodes is changed from AB to B in order to allow high power operation (up to 3 MW per antenna) under higher VSWR (up to 2:1). Reliability of the generators is also improved by increasing the cavity breakdown voltage. The control and data acquisition system is also upgraded in order to resolve and react on fast events, such as ELMs. A new optical arc detection system comes in reinforcement of the Vr/Vf and SHAD systems.

Original languageEnglish
Title of host publicationRadio Frequency Power in Plasmas
Subtitle of host publicationProceedings of the 21St Topical Conference
EditorsRobert I. Pinsker
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413368
DOIs
Publication statusPublished - 10 Dec 2015
Event21st Topical Conference on Radiofrequency Power in Plasmas - Lake Arrowhead, United States
Duration: 27 Apr 201529 Apr 2015

Publication series

NameAIP Conference Proceedings
Volume1689
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference21st Topical Conference on Radiofrequency Power in Plasmas
Country/TerritoryUnited States
CityLake Arrowhead
Period27/04/1529/04/15

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