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Abstract

Toroidal asymmetries in the measured ripple losses during ion cyclotron range of frequencies (ICRF) heating have been observed on the Tore Supra tokamak. Such asymmetries have been detected in plasmas heated by low levels of ICRF power. In contrast, the ripple losses appear to be almost symmetrical (more precisely periodically symmetric) during high power ICRF heating. A theoretical analysis of the losses indicates that asymmetries can arise because a larger fraction of the ICRF power is absorbed in the ripple well region during low power ICRF heating.

Additional information

Authors: ASSAS S, EURATOM-CEA Association, CEA/DSM/DRFC, CEA Cadarache, Saint-Paul-lez-Durance (FR);ERIKSSON L-G, EURATOM-CEA Association, CEA/DSM/DRFC, CEA Cadarache, Saint-Paul-lez-Durance (FR);NGUYEN F, EURATOM-CEA Association, CEA/DSM/DRFC, CEA Cadarache, Saint-Paul-lez-Durance (FR);BASIUK G, EURATOM-CEA Association, CEA/DSM/DRFC, CEA Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: An article published in: Plasma Physics and Controlled Fusion 45 (February 2003) pp.145-158
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://stacks.iop.org/0741-3335/45/145
Record Number: 200316016 / Last updated on: 2003-03-06
Category: PUBLICATION
Original language: en
Available languages: en
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