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Erosion and deposition in the JET divertor during the first ILW campaign
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2016 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. T167, 014051Article in journal (Refereed) Published
Resource type
Text
Abstract [en]

Erosion and deposition were studied in the JET divertor during the first JET ITER-like wall campaign 2011 to 2012 using marker tiles. An almost complete poloidal section consisting of tiles 0, 1, 3, 4, 6, 7, 8 was studied. The data from divertor tile surfaces were completed by the analysis of samples from remote divertor areas and from the inner wall cladding. The total mass of material deposited in the divertor decreased by a factor of 4-9 compared to the deposition of carbon during all-carbon JET operation before 2010. Deposits in 2011 to 2012 consist mainly of beryllium with 5-20 at.% of carbon and oxygen, respectively, and small amounts of Ni, Cr, Fe and W. This decrease of material deposition in the divertor is accompanied by a decrease of total deuterium retention inside the JET vessel by a factor of 10 to 20. The detailed erosion/deposition pattern in the divertor with the ITER-like wall configuration shows rigorous changes compared to the pattern with the all-carbon JET configuration.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2016. Vol. T167, 014051
Keyword [en]
divertor, JET-ILW, material deposition, material erosion, surface analysis, Beryllium deposits, Deposition, Erosion, Fighter aircraft, Lunar surface analysis, Deuterium retention, Erosion and deposition, Erosion/deposition, Jet configuration, Jet operations, Fusion reactor divertors
National Category
Geology Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:kth:diva-188320DOI: 10.1088/0031-8949/T167/1/014051ISI: 000383504700052Scopus ID: 2-s2.0-84959890633OAI: oai:DiVA.org:kth-188320DiVA: diva2:936266
Conference
15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2015, Aix-en-Provence, France, 18 May 2015 through 22 May 2015
Note

QC 20161024

Available from: 2016-06-13 Created: 2016-06-09 Last updated: 2016-10-24Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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  • modern-language-association-8th-edition
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More styles
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Output format
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