Radiation heat loads on plasma-facing components of JET during the massive gas injection experiment

A. Huber, G. Arnoux, S. A. Bozhenkov, S. Brezinsek, C. Fuchs, W. Fundamenski, S. Jachmich, U. Kruezi, M. Lehnen, A. Loarte, G. F. Matthews, Ph Mertens, V. Philipps, R. A. Pitts, U. Samm, B. Schweer, G. Sergienko, M. Stamp

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Introduction During plasma disruptions in JET, the thermal energy (<10MJ) and magnetic energy (<20MJ) are lost in the form of heat to the plasma-facing components (PFC) on time scales of less than 1ms and 20ms [1], respectively. The thermal energy Wth stored in the plasma is dissipated initially in the thermal quench (TQ), followed by the magnetic energy dissipation in the current quench (CQ). During the thermal quench phase of the unmitigated disruptions the main part of the thermal energy is lost by convection to the first wall and only a small part (<0.2xW,h) by radiation [2]. The energy deposition is distributed non- uniformly over the first wall surfaces and it may significantly contribute to the local power loads onto PFCs.

Original languageEnglish
Title of host publication38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts
Pages13-16
Number of pages4
Publication statusPublished - 2011
Event38th EPS Conference on Plasma Physics 2011, EPS 2011 - Strasbourg, France
Duration: 27 Jun 20111 Jul 2011

Publication series

Name38th EPS Conference on Plasma Physics 2011, EPS 2011 - Europhysics Conference Abstracts
Volume35 1

Conference

Conference38th EPS Conference on Plasma Physics 2011, EPS 2011
Country/TerritoryFrance
CityStrasbourg
Period27/06/111/07/11

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