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Abstract

Two series of JET shots, one on hot ion shots and one on hot electron shots, have been analysed in order to improve the understanding of how the temperature ratio T(e)/T(i) influences the performance. Comparisons are also made with ITER simulations which are in the hot electron regime. The temperature ratio has been varied between different shots, in partly interpretative simulations of one shot and locally. The effect of the variation of the temperature ratio depends strongly on how it is done but can also be different in different types of shots. In general, however, an increased electron heating deteriorates confinement rather strongly. This is the situation for increasing the alpha power in ITER. ITER simulations show, however, that the effect is not dramatic.

Additional information

Authors: WEILAND J, Chalmers University of Technology and EURATOM-VR Assocation, Göteborg (SE);ASP E, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);GARBET X, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);THOMAS P, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);MANTICA P, Istituto di Fisica del Plasma, EURATOM-ENEA-CNR Association Milano (IT);PARAIL V, EFDA-JET, Culham Science Centre, Abingdon (UK);SUTTROP W, Max-Planck-Institut für Plasmaphysik, IPP-EURATOM Association, Garching (DE);TALA T, Association EURATOM-TEKES, VTT Processes, Helsinki (FI)
Bibliographic Reference: An article published in: Plasma Physics and Controlled Fusion47 (2005), pp.441-449
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/10.1088/0741-3335/47/3/003
Record Number: 200719074 / Last updated on: 2007-04-11
Category: PUBLICATION
Original language: en
Available languages: en