Runaway electron behaviour during electron cyclotron resonance heating in the Frascati Tokamak upgrade

J.R. Martín-Solís, B. Esposito, R. Sánchez, G. Granucci

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Abstract

The behaviour of high energy runaway electrons during the flat-top phase of electron cyclotron (EC) resonance heated (ECRH) discharges has been analysed in the Frascati Tokamak Upgrade. The decay of the electric field due to plasma heating has been observed to result in a rapid fall in the electron energy that frequently leads to quenching of the runaway population. The efficiency of this runaway mitigation scheme and its dependence on the plasma conditions has been investigated with particular emphasis on the required electric field drop during EC wave injection.
Original languageEnglish
Pages (from-to)974 - 981
Number of pages8
JournalNuclear Fusion
Volume44
Issue number9
DOIs
Publication statusPublished - Sep 2004
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Nuclear and High Energy Physics

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