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Abstract

In the 2003-2004 experimental campaign of Tore Supra, solid metal mirror samples had been installed near the equatorial plane on the inner wall of the vacuum chamber about 140mmoutside the last closed flux surface. During this time, the samples were exposed to #1400 plasma pulses of more than I(p)=200kA (n(e0)~2-4 10{19 m{-3}) with a total pulse length of ~ 26000s (7h10). The total energy injected of ~37GJ was composed of 13GJ ohmic, ~22GJ LHCD and ~2GJ ICRH. With a typical value for the radiated power fraction of about 40% this corresponds to an accumulated average wall load of ~18kJ/cm2. In addition the mirrors were exposed to vessel wall conditioning: glow discharges in He, in D(2) and boronisations. Baking cycles of the vacuum vessel structure were performed at T~200 degree Celsius. Besides minor leaks, a major water leak of an actively cooled in-vessel component occurred in September 2003, after 177h of D(2) and 108h of He glows. Minor water leaks of RF antenna structures appeared also during March 2004. The final TS operation before the mirror recovery lasted 2495s of plasma, followed by a final 6.5h He glow and only 85s of plasma operation.

Additional information

Authors: HOGAN J, Oak Ridge National Laboratory, Oak Ridge (US);VOYTSENYA V, Institute of Plasma Physics, NSC KIPT, Kharkov (UA);SCHUNKE B, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);LIPA M, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);GIL C, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);TSITRONE E, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);REITER D, Forschungszentrum Jülich GmbH, Jülich (DE)
Bibliographic Reference: An oral paper given at: 32nd EPS Conference on Controlled Fusion and Plasma Physics Organised by: Asociación EURATOM-CIEMAT para Fusión Held at: Congress Palace of Tarragona, Tarragona (ES)
Availability: Available from Association EURATOM-CEA, Departement de Recherches sur la Fusion Controlee, CEA Cadarache, F-13108 St Paul-Lez-Durance, FranceL%Tel: (+33) 4 42 25 70 01; Fax: (+33) 4 42 25 64 21 E-mail: dirdrfc@drfc.cad.cea.fr
Record Number: 200518290 / Last updated on: 2005-07-26
Category: PUBLICATION
Original language: en
Available languages: en
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