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Materials migration in JET with ITER-like wall traced with a Be-10 isotopic marker
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics. (Assoc EURATOM VR)
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics. (Assoc EURATOM VR)
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2015 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 463, 773-776 p.Article in journal (Refereed) Published
Abstract [en]

The current configuration of JET with ITER-like Wall (ILW) is the best available proxy for the ITER first wall. Beryllium redistribution in JET-ILW can be used for estimates of its migration in ITER. To trace it, a localized isotopic Be marker has been implemented. A bulk Be-9 tile has been enriched with Be-10 up to atomic concentrations of 1.7 x 10(-9) and installed at the inner midplane of JET before the campaign. During the 2012 shutdown over 100 surface samples were taken non destructively from surfaces of two toroidally opposite limiter beams. The absolute areal densities of the marker were inferred from Be-15 atomic concentration in each sample, measured with Accelerator Mass Spectrometry with sensitivity <10(-14). The results of marker mapping are compared with predictions made with the ASCOT orbit following code.

Place, publisher, year, edition, pages
2015. Vol. 463, 773-776 p.
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Other Materials Engineering
URN: urn:nbn:se:kth:diva-172694DOI: 10.1016/j.jnucmat.2014.12.020ISI: 000358467200164ScopusID: 2-s2.0-84937814403OAI: diva2:850180

QC 20150901

Available from: 2015-09-01 Created: 2015-08-27 Last updated: 2015-09-01Bibliographically approved

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Bykov, IgorBergsåker, HenrikPetersson, Per
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