Disruption mitigation by injection of small quantities of noble gas in ASDEX Upgrade

G. Pautasso, M. Bernert, M. Dibon, B. Duval, R. Dux, E. Fable, J. C. Fuchs, G. D. Conway, L. Giannone, A. Gude, A. Herrmann, M. Hoelzl, P. J. McCarthy, A. Mlynek, M. Maraschek, E. Nardon, G. Papp, S. Potzel, C. Rapson, B. SieglinW. Suttrop, W. Treutterer

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The most recent experiments of disruption mitigation by massive gas injection in ASDEX Upgrade have concentrated on small - relatively to the past - quantities of noble gas injected, and on the search for the minimum amount of gas necessary for the mitigation of the thermal loads on the divertor and for a significant reduction of the vertical force during the current quench. A scenario for the generation of a long-lived runaway electron beam has been established; this allows the study of runaway current dissipation by moderate quantities of argon injected. This paper presents these recent results and discusses them in the more general context of physical models and extrapolation, and of the open questions, relevant for the realization of the ITER disruption mitigation system.

Original languageEnglish
Article number014046
JournalPlasma Physics and Controlled Fusion
Volume59
Issue number1
DOIs
Publication statusPublished - Jan 2017

Keywords

  • MGI
  • disruption mitigation
  • runaway electrons

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

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    Pautasso, G., Bernert, M., Dibon, M., Duval, B., Dux, R., Fable, E., Fuchs, J. C., Conway, G. D., Giannone, L., Gude, A., Herrmann, A., Hoelzl, M., McCarthy, P. J., Mlynek, A., Maraschek, M., Nardon, E., Papp, G., Potzel, S., Rapson, C., ... Treutterer, W. (2017). Disruption mitigation by injection of small quantities of noble gas in ASDEX Upgrade. Plasma Physics and Controlled Fusion, 59(1), [014046]. https://doi.org/10.1088/0741-3335/59/1/014046