Linear MHD stability analysis of post-disruption plasmas in ITER

K. Aleynikova, G.T.A. Huijsmans, P. Aleynikov

Research output: Contribution to journalArticleAcademicpeer-review

13 Citations (Scopus)
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Most of the plasma current can be replaced by a runaway electron (RE) current during plasma disruptions in ITER. In this case the post-disruption plasma current profile is likely to be more peaked than the pre-disruption profile. The MHD activity of such plasma will affect the runaway electron generation and confinement and the dynamics of the plasma position evolution (Vertical Displacement Event), limiting the timeframe for runaway electrons and disruption mitigation. In the present paper, we evaluate the influence of the possible RE seed current parameters on the onset of the MHD instabilities. By varying the RE seed current profile, we search for subsequent plasma evolutions with the highest and the lowest MHD activity. This information can be applied to a development of desirable ITER disruption scenario.
Original languageEnglish
Pages (from-to)486-494
JournalPlasma Physics Reports
Issue number5
Publication statusPublished - 1 May 2016


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