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Testing of beryllium marker coatings in PISCES-B for the JET ITER-like wall
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2009 (English)In: Journal of Nuclear Materials, ISSN 0022-3115, E-ISSN 1873-4820, Vol. 390-91, 988-991 p.Article in journal (Refereed) Published
Abstract [en]

Beryllium has been chosen as the first wall material for ITER. In order to understand the issues of material migration and tritium retention associated with the use of beryllium, a largely beryllium first wall will be installed in JET. As part of the JET ITER-like wall, beryllium tiles with marker coatings are proposed as a diagnostic tool for studying the erosion and deposition of beryllium around the vessel. The nominal structure for these coatings is a similar to 10 mu m beryllium surface layer separated from the beryllium tile by a 2-3 mu m metallic inter-layer. Two types of coatings are tested here; one with a nickel inter-layer anti one with a copper/beryllium mixed inter-layer. The coating samples were deposited by DC magnetron Sputtering at General Atomics and were exposed to deuterium plasma in PISCES-B. The results of this testing show that the beryllium/nickel marker coating would be suitable for installation in JET.

Place, publisher, year, edition, pages
2009. Vol. 390-91, 988-991 p.
Keyword [en]
PLASMA, LOAD
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:kth:diva-25582DOI: 10.1016/j.jnucmat.2009.01.259ISI: 000267747300227Scopus ID: 2-s2.0-67349220135OAI: oai:DiVA.org:kth-25582DiVA: diva2:370720
Conference
18th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices Toledo, SPAIN, MAY 26-30, 2008
Note
QC 20101117(18th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices Toledo, SPAIN, MAY 26-30, 2008)Available from: 2010-11-17 Created: 2010-10-27 Last updated: 2017-12-12Bibliographically approved

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Rubel, Marek J.

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