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Abstract

During additional heating in tokamaks, hot spots are commonly observed on the first wall components and are generally related to misalignments and/or limiter edge load, though more specific cases due to fast particles or toroidal field ripple have also been reported. Recently, during long pulse experiments with LHCD in Tore Supra, strongly localised hot spots have been observed deep inside each vertical port. In this paper an interpretation of this unusual feature is given, based on a comprehensive analysis of the ripple trapped particle dynamics.

Additional information

Authors: ROUBIN J-P, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR);GUILHEM D, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR);MARTIN G, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR);PÉGOURIÉ B, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR);PEYSSON Y, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR);PEGOURIE B, CEA, Departement de Recherches sur la Fusion Controlee, CEN Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: Paper presented: 18th European Conference on Controlled Fusion and Plasma Physics, Berlin (DE), June 3-7, 1991
Availability: Available from (1) as Paper EN 35952 ORA
Record Number: 199111253 / Last updated on: 1994-12-02
Category: PUBLICATION
Original language: en
Available languages: en