Testing of beryllium marker coatings in PISCES-B for the JET ITER-like wall
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
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.
Fusion, Plasma and Space Physics
IdentifiersURN: urn:nbn:se:kth:diva-25582DOI: 10.1016/j.jnucmat.2009.01.259ISI: 000267747300227ScopusID: 2-s2.0-67349220135OAI: oai:DiVA.org:kth-25582DiVA: diva2:370720
18th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices Toledo, SPAIN, MAY 26-30, 2008
QC 20101117(18th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices
Toledo, SPAIN, MAY 26-30, 2008)2010-11-172010-10-272011-03-16Bibliographically approved