Community Research and Development Information Service - CORDIS

Abstract

Carbon deposited layers collected in Tore Supra on the neutralizers, on the toroidal pumped limiter and on the vertical outboard limiter have been analysed by X-ray diffraction and Raman spectroscopy. Both techniques show that these samples are highly disordered, mainly consisting of graphite-like nanoparticles. They are not similar to amorphous or hydrogenated amorphous carbons: this is consistent with the low amount of deuterium found trapped inside. Their structure can be related to their vicinity to plasma, particle bombardment inducing high temperature and preventing full amorphization. Samples exposed to the highest fluency in the machine show the largest degree of disorder, with probably a minor contribution of three-dimensional disorder, which may be due to the formation of bonds with deuterium.

Additional information

Authors: ROUBIN P, PIIM-UMR 6633, Université de Provence, Marseille (FR);MARTIN C, PIIM-UMR 6633, Université de Provence, Marseille (FR);ARNAS C, PIIM-UMR 6633, Université de Provence, Marseille (FR);COLOMBAN PH, LADIR-UMR 7075, Université P.&M. Curie, Thiais (FR);PEGOURIE B, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);BROSSET C, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: An article published in: Journal of Nuclear Materials 337-339 (2005) 990-994
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://probe.usp.br/cgi-bin/sciserv.pl?collection=journals&journal=00223115
Record Number: 200518084 / Last updated on: 2005-04-19
Category: PUBLICATION
Original language: en
Available languages: en
Follow us on: RSS Facebook Twitter YouTube Managed by the EU Publications Office Top