A line-of-sight electron cyclotron emission receiver for electron cyclotron resonance heating feedback control of tearing modes

TitleA line-of-sight electron cyclotron emission receiver for electron cyclotron resonance heating feedback control of tearing modes
Publication TypeJournal Article
Year of Publication2008
AuthorsJ.W Oosterbeek, A. Burger, E. Westerhof, MR de Baar, M.A van den Berg, W.A Bongers, MF Graswinckel, B.A. Hennen, O.G Kruijt, J. Thoen, R. Heidinger, S.B Korsholm, F. Leipold, S.K. Nielsen
JournalReview of Scientific Instruments
Volume79
Number9
Pagination12
Date PublishedSep
Type of ArticleArticle
ISBN Number0034-6748
Accession NumberISI:000260291800013
KeywordsCOMPLETE SUPPRESSION, CURRENT DRIVE, DISCHARGES, ECE, LIMITS, STABILIZATION, TEXTOR, TOKAMAK
Abstract

An electron cyclotron emission (ECE) receiver inside the electron cyclotron resonance heating (ECRH) transmission line has been brought into operation. The ECE is extracted by placing a quartz plate acting as a Fabry-Perot interferometer under an angle inside the electron cyclotron wave (ECW) beam. ECE measurements are obtained during high power ECRH operation. This demonstrates the successful operation of the diagnostic and, in particular, a sufficient suppression of the gyrotron component preventing it from interfering with ECE measurements. When integrated into a feedback system for the control of plasma instabilities this line-of-sight ECE diagnostic removes the need to localize the instabilities in absolute coordinates. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.2976665]

URL<Go to ISI>://000260291800013
Division

Fusion Physics

PID

682d4d308259fdd96febfce1a0095c11

Alternate TitleRev. Sci. Instrum.

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