Type-I ELM power deposition profile width and temporal shape in JET

TitleType-I ELM power deposition profile width and temporal shape in JET
Publication TypeJournal Article
Year of Publication2011
AuthorsT. Eich, H. Thomsen, W. Fundamenski, G. Arnoux, S. Brezinsek, S. Devaux, A. Herrmann, S. Jachmich, J. Rapp
JournalJournal of Nuclear Materials
Volume415
Issue1, Suppl.
Number1
PaginationS856-S859
Date PublishedAug
Type of ArticleArticle; Proceedings Paper
ISBN Number0022-3115
KeywordsEXTRAPOLATION, HEAT-FLUX, ITER
Abstract

A new infra red camera (IR) for high resolution infra red studies for the outer divertor target plate in JET has been installed. Shot integrated energy balance between tile embedded thermocouples and IR based estimation of deposited energy on the outer tile gives fair agreement in the range of 80-120%. The assumptions of the temporal evolution of type-I ELMs power load as made for ITER define a lower, conservative boundary within the observed variation of the data. The broadening of the ELM induced power profiles are, in contrast to earlier results based on a lower resolution IR system at JET, found to be in the range of 1.4-4.3 when compared to the inter-ELM wetted area. (C) 2011 Published by Elsevier B.V.

DOI10.1016/j.jnucmat.2010.11.079
Division

PSI

Department

PSI-E

PID

30dcc77d9a4292044ac2b4e9ba1acbd6

Alternate TitleJ. Nucl. Mater.

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