Measurements of the current density profile with tangential Thomson scattering in RTP

TitleMeasurements of the current density profile with tangential Thomson scattering in RTP
Publication TypeJournal Article
Year of Publication2001
AuthorsF.A Karelse, M. de Bruijne, C.J Barth, M.NA Beurskens, G.MD Hogeweij, N.JL Cardozo
JournalPlasma Physics and Controlled Fusion
Volume43
Number4
Pagination443-468
Date PublishedApr
ISBN Number0741-3335
Abstract

The electron drift velocity (v(d,e)) profile is measured with tangential Thomson scattering (TTS). From this, the current density (j) profile is determined, extending over 60% of the plasma diameter (2a) with a spatial resolution of 12% of a. The statistical error of similar to 10% is in agreement with the expected accuracy based on simulation studies. Two analysis methods are compared and found to agree. Results of TTS in electron cyclotron heated discharges with peaked and hollow j profiles are in good agreement with neo-classical resistivity.

DOI10.1088/0741-3335/43/4/306
PID

9bb250c5af452b8b5d750c6ac15caec9

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