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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.

Additional information

Authors: MANTICA P, Istituto di Fisica del Plasma, EURATOM�ENEA�CNR Association Milano (IT);VAN EESTER D, Association EURATOM-Belgian State, LPP-ERM/KMS (BE);GARBET X, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);LABORDE L, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);MAZON D, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);MOREAU D, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);JOFFRIN E, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);IMBEAUX F, Association EURATOM-TEKES, Helsinki University of Technology (FI);MANTSINEN M, Association EURATOM-TEKES, Helsinki University of Technology (FI);SALMI A, Association EURATOM-TEKES, Helsinki University of Technology (FI);MARINONI A, Dipartimento di Ingegneria Nucleare, Politecnico di Milano, Milano (IT);HAWKES N, EURATOM-UKAEA Fusion Association, Culham Science Centre, Oxon (GB);KIPTILY V, EURATOM-UKAEA Fusion Association, Culham Science Centre, Oxon (GB);SHARAPOV S, EURATOM-UKAEA Fusion Association, Culham Science Centre, Oxon (GB);THYAGARAJA A, EURATOM-UKAEA Fusion Association, Culham Science Centre, Oxon (GB);VOITSEKHOVITCH I, EURATOM-UKAEA Fusion Association, Culham Science Centre, Oxon (GB);DE VRIES P, EURATOM-UKAEA Fusion Association, Culham Science Centre, Oxon (GB);ZASTROW K-D, EURATOM-UKAEA Fusion Association, Culham Science Centre, Oxon (GB);PINCHES S, Max-Planck-Institut für Plasmaphysik, IPP-EURATOM Association, Garching (DE)
Bibliographic Reference: An article published in: Phys. Rev. Lett. 96, 095002 (2006)
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/doi:10.1103/PhysRevLett.96.095002
Record Number: 200719147 / Last updated on: 2007-05-21
Category: PUBLICATION
Original language: en
Available languages: en