Advancements in electron cyclotron emission imaging demonstrated by the TEXTOR ECEI diagnostic upgrade

TitleAdvancements in electron cyclotron emission imaging demonstrated by the TEXTOR ECEI diagnostic upgrade
Publication TypeJournal Article
Year of Publication2009
AuthorsB. Tobias, X. Kong, T. Liang, A. Spear, C.W. Domier, NC Luhmann, Jr., I.G.J. Classen, J.E Boom, M.J. van de Pol, R. Jaspers, A.JH Donne, H.K Park, T. Munsat
JournalReview of Scientific Instruments
Volume80
Number9
Pagination8
Date PublishedSep
Type of ArticleArticle
ISBN Number0034-6748
Accession NumberISI:000270380000012
KeywordsFLUCTUATIONS, PLASMAS, SYSTEM
Abstract

A new TEXTOR electron cyclotron emission imaging system has been developed and employed, providing a diagnostic with new features and enhanced capabilities when compared to the legacy system it replaces. Optical coupling to the plasma has been completely redesigned, making use of new minilens arrays for reduced optical aberration and providing the new feature of vertical zoom, whereby the vertical coverage is now remotely adjustable on a shot-by-shot basis from 20-35 cm. Other innovations, such as the implementation of stacked quasioptical planar notch filters, allow for the diagnostic to be operated without interruption or degradation in performance during electron cyclotron resonance heating. Successful commissioning of the new diagnostic and a demonstration of the improved capabilities are presented in this paper, along with a discussion of the new technologies employed. (C) 2009 American Institute of Physics. [doi:10.1063/1.3233913]

URL<Go to ISI>://000270380000012
Division

Fusion Physics

PID

80be2b3b9712293fb4a7c46ae08c3acf

Alternate TitleRev. Sci. Instrum.

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