Role of the plasma shaping in ITB experiments on JET

F. Crisanti, P.J. Lomas, O. Tudisco, A. Bécoulet, M. Bécoulet, L. Bertalot, T. Bolzonella, G. Bracco, M. De Benedetti, B. Esposito, C. Giroud, N.C. Hawkes, T.C. Hender, O.N. Jarvis, E. Joffrin, D. Pacella, V. Riccardo, F. Rimini, K.D. Zastrow

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Abstract

A set of dedicated JET experiments is described where the plasma elongation (k) and triangularity (δ) were varied separately in order to study the influence of plasma magnetic topology on the internal transport barrier (ITB). With low δ, type III ELMs were observed and ITBs readily generated. At the highest δ, large type I ELMs and ELM free phases were observed but, at best, only marginal ITBs. At fixed δ the increase of the elongation of internal magnetic surface have a beneficial effect on the transport quality of the ITB.
Original languageEnglish
Pages (from-to)379 - 393
Number of pages15
JournalPlasma Physics and Controlled Fusion
Volume45
Issue number4
DOIs
Publication statusPublished - Apr 2003
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

Cite this

Crisanti, F., Lomas, P. J., Tudisco, O., Bécoulet, A., Bécoulet, M., Bertalot, L., ... Zastrow, K. D. (2003). Role of the plasma shaping in ITB experiments on JET. Plasma Physics and Controlled Fusion, 45(4), 379 - 393. https://doi.org/10.1088/0741-3335/45/4/305