High beta plasmas and internal barrier dynamics in JET discharges with optimized shear

P. Buratti

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Abstract

High βN conditions have been sustained in JET discharges with an internal transport barrier (ITB) by controlling edge conditions and pressure peaking. The behaviour of ideal and resistive MHD instabilities at high βN has been studied as a function of pressure peaking. The duration of the high βN phase was limited by interaction with the septum of the Gas Box divertor. ITB triggering and evolution are in good agreement with the condition for turbulence suppression by E × B shear flow.
Original languageEnglish
Pages (from-to)1809 - 1814
Number of pages6
JournalNuclear Fusion
Volume41
Issue number12
DOIs
Publication statusPublished - Dec 2001
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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