Energy flow during disruptions in JET

J. I. Paley, P. Andrew, S. C. Cowley, W. Fundamenski, A. Huber

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Disruptions place severe limitations on the materials selected for plasma facing components in fusion devices. In a disruption, the plasma stored thermal and magnetic energy is dissipated leading to predicted power loadings in the current quench of up to 10 MW m-2 in JET. In the thermal quench very high power loads of up to 10 G Wm-2 would be expected if all the power flowed to the steady state strike points, however this is not observed. In this paper the energy balance associated with both events is investigated. The magnetic energy is found to balance well with radiated energy. Circumstantial evidence for limiter interaction during the thermal quench of plasmas in divertor configuration is presented and a possible mechanism for limiter interaction in disruptions resulting from the collapse of an internal transport barrier is discussed.

Original languageEnglish (US)
Pages (from-to)702-706
Number of pages5
JournalJournal of Nuclear Materials
Volume337-339
Issue number1-3 SPEC. ISS.
DOIs
StatePublished - Mar 1 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

Keywords

  • Disruption
  • Divertor
  • JET
  • Power balance
  • Radiation

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    Paley, J. I., Andrew, P., Cowley, S. C., Fundamenski, W., & Huber, A. (2005). Energy flow during disruptions in JET. Journal of Nuclear Materials, 337-339(1-3 SPEC. ISS.), 702-706. https://doi.org/10.1016/j.jnucmat.2004.10.097