Inboard and outboard electron temperature profile measurements in JET using ECE diagnostics

TitleInboard and outboard electron temperature profile measurements in JET using ECE diagnostics
Publication TypeJournal Article
Year of Publication2010
AuthorsL. Barrera, E. de la Luna, L. Figini, M.NA Beurskens, M. Brix, F. Castejon, P.C de Vries, D. Farina, M. Kempenaars, P. Lomas, J. Mailloux, I. Nunes, E. Solano
JournalPlasma Physics and Controlled Fusion
Volume52
Number8
Pagination14
Date PublishedAug
Type of ArticleArticle
ISBN Number0741-3335
Accession NumberISI:000279709700010
KeywordsEUROPEAN TORUS JET, THOMSON SCATTERING, UPGRADE
Abstract

In this paper a novel use of the heterodyne radiometer in JET is presented. The operation of the diagnostic has been extended to allow simultaneously measurement of the pedestal temperature profile at the inboard and outboard midplane with high spatial and temporal resolution. Access to the inboard midplane region is obtained by measuring ordinary mode electron cyclotron emission (ECE) (no harmonic overlap) using an antenna located on the low-field side of the torus. To assess the potential of the ECE temperature measurements in the inboard pedestal region, a detailed analysis of ECE spectrum will be discussed. The measured electron temperature profiles are presented, including a discussion of the main uncertainties in the analysis. The comparison of inboard and outboard temperature pedestal profiles in a variety of H-mode plasmas shows a reasonable agreement in both shape and magnitude.

URL<Go to ISI>://000279709700010
PID

8cc495342459c9b775f1f5789a9e21c2

Alternate TitlePlasma Phys. Control. Fusion

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