Probing internal transport barriers with heat pulses in JET

P. Mantica, D. Vaneester, X. Garbet, F. Imbeaux, L. Laborde, M. Mantsinen, A. Marinoni, D. Mazon, D. Moreau, N. Hawkes, E. Joffrin, V. Kiptily, S. Pinches, A. Salmi, S. Sharapov, A. Thyagaraja, I. Voitsekhovitch, P. Devries, K.-D. Zastrow

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Abstract

The first electron temperature modulation experiments in plasmas characterized by strong and long-lasting electron and ion internal transport barriers (ITB) have been performed in JET using ion cyclotron resonance heating in mode conversion scheme. The ITB is shown to be a well localized narrow layer with low heat diffusivity, characterized by subcritical transport and loss of stiffness. In addition, results from cold pulse propagation experiments suggest a second order transition process for ITB formation. © 2006 The American Physical Society.
Original languageEnglish
Article number095002
Pages (from-to)-
JournalPhysical Review Letters
Volume96
Issue number9
DOIs
Publication statusPublished - 2006
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Mantica, P., Vaneester, D., Garbet, X., Imbeaux, F., Laborde, L., Mantsinen, M., ... Zastrow, K-D. (2006). Probing internal transport barriers with heat pulses in JET. Physical Review Letters, 96(9), -. [095002]. https://doi.org/10.1103/PhysRevLett.96.095002