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Deuterium accumulation in carbon materials at high fluence
KTH, School of Information and Communication Technology (ICT), Material Physics, Material Physics, MF.
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2009 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 390-91, 677-680 p.Article in journal (Refereed) Published
Abstract [en]

D retention in fine grain graphite MPG-8 and carbon fiber composite NB31 after exposure to plasma was investigated by means of thermal desorption spectroscopy. It was observed, that deuterium accumulation in the two materials was similar in the region of the fluence of 10(22)-4 x 10(24) D+/m(2), though NB31 retains about twice as much. The retention in MPG-8 reveals no saturation at high fluences and no flux dependence in the range of (0.5-3.5) x 10(20) D+/m(2) s. The difference between polished and unpolished samples, as well as between samples kept in air for various times after irradiation was within the experimental uncertainty.

Place, publisher, year, edition, pages
2009. Vol. 390-91, 677-680 p.
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Other Engineering and Technologies not elsewhere specified
URN: urn:nbn:se:kth:diva-30786DOI: 10.1016/j.jnucmat.2009.01.186ISI: 000267747300158ScopusID: 2-s2.0-67349096842OAI: diva2:404584
QC 20110317(18th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices Toledo, SPAIN, MAY 26-30, 2008)Available from: 2011-03-17 Created: 2011-03-04 Last updated: 2011-03-17Bibliographically approved

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Emmoth, Birger
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