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Tore Supra experiments are at present devoted to the study of high density regimes with radiofrequency heating. Recently, an improved L mode confinement regime has been observed in plasmas heated by ion cyclotron hydrogen minority heating, at relatively high densities up to 80% of the Greenwald limit. The quality of energy confinement is as good as that of ELMy H mode. The main physical mechanism of this regime has not been clearly identified. However, some features very similar to those of previously improved confinement modes using neutral beam heating in other tokamaks have been observed.

Additional information

Authors: HOANG G T ET AL, Association Euratom-CEA sur la Fusion, DÚpartment de Recherches sur la Fusion ContrlÚe, CEA Cadarache, Saint-Paul-lez-Durance (FR);BUDNY R V,
Bibliographic Reference: Article: Nuclear Fusion, Vol. 40, No. 5 (2000) p. 913-921
Availability: Nuclear Fusion (Journal)
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