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Raman microscopy investigation of beryllium materials
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2016 (English)In: Physica Scripta, ISSN 0031-8949, E-ISSN 1402-4896, Vol. T167, 014027Article in journal (Refereed) Published
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Text
Abstract [en]

We report for the first time on the ability of Raman microscopy to give information on the structure and composition of Be related samples mimicking plasma facing materials that will be found in ITER. For that purpose, we investigate two types of material. First: Be, W, Be1W9, and Be5W5 deposits containing a few percents of D or N, and second: a Mo mirror exposed to plasma in the main JET chamber (in the framework of the first mirror test in JET with ITER-like wall). We performed atomic quantifications using ion beam analysis for the first samples. We also did atomic force microscopy. We found defect induced Raman bands in Be, Be1W9, and Be5W5 deposits. Molybdenum oxide has been identified showing an enhancement due to a resonance effect in the UV domain.

Place, publisher, year, edition, pages
Institute of Physics Publishing (IOPP), 2016. Vol. T167, 014027
Keyword [en]
beryllium containing material, plasma wall interaction, Raman microscopy, Atomic force microscopy, Beryllium, Deposits, Ion beams, Mirrors, Optical testing, Plasma interactions, Exposed to, First mirror, Ion beam analysis, Plasma facing materials, Raman bands, Resonance effect, Molybdenum oxide
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:kth:diva-188323DOI: 10.1088/0031-8949/T167/1/014027ISI: 000383504700028Scopus ID: 2-s2.0-84959914708OAI: oai:DiVA.org:kth-188323DiVA: diva2:936259
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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