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An Overview of Nuclear Microbeam Analysis of Surface and Bulk Fuel Retention in Carbon Fibre Composites from Tore Supra
Tandem Labb, Uppsala Universitet.
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.ORCID iD: 0000-0001-9901-6296
CEA Cadarache, France .
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2011 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 415, no 1, S761-S764 p.Article in journal (Refereed) Published
Abstract [en]

Surface and bulk retention of deuterium in tiles of the pump limiter from Tore Supra was examined with nuclear reaction analysis using both standard and micro-beam techniques. The aim was to determine the variations in the content and distribution of fuel species in carbon-fibre composites. On plasma-facing surfaces from the deposition zone, the D content reaches 2.5 × 1019 cm−2 in about 8 μm thick top layer, but lateral differences reach even more than one order of magnitude. This is also measured in the erosion zone: 6.6 × 1017 cm−2 to 7.7 × 1018 cm−2 D atoms. Bulk content was examined on cross-sections opened by fracturing the tiles. Fuel is detected up to the depth of 1–1.5 mm beneath the plasma-facing surface in tiles from both the erosion and deposition zones. It occurs in bands, about 100 μm wide and several mm long, roughly parallel to the original plasma-facing surface.

Place, publisher, year, edition, pages
2011. Vol. 415, no 1, S761-S764 p.
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Fusion, Plasma and Space Physics
URN: urn:nbn:se:kth:diva-72769DOI: 10.1016/j.jnucmat.2010.10.044ISI: 000298128100173ScopusID: 2-s2.0-80054835795OAI: diva2:488053
QC 20120202Available from: 2012-02-01 Created: 2012-02-01 Last updated: 2012-02-27Bibliographically approved

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