Laser-assisted cleaning of beryllium-containing mirror samples from JET and PISCES-B

M. Wisse, L. Marot and A. Widdowson, M. Rubel and D. Ivanova, P. Petersson and R. P. Doerner, M. J. Baldwin and J. Likonen, E. Alves and A. Hakola, S. Koivuranta and R. Steiner, E. Meyer. (2014) Laser-assisted cleaning of beryllium-containing mirror samples from JET and PISCES-B. Fusion Engineering and Design, 89 (2). pp. 122-130.

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A set of seven polycrystalline mirror samples retrieved from the JET tokamak has been cleaned in vacuum using a pulsed laser system. The surfaces of samples exposed to plasma during 2008–2009 campaigns as part of the second phase of a comprehensive first mirror test contained a mixture of carbon, beryllium and tritium. For this reason, the samples were treated in a vacuum chamber constructed specially for this purpose. In some cases mirrors show an increase of the specular reflectivity after cleaning, though beryllium and carbon deposits were not fully removed. Additionally, three samples coated in PISCES-B with a 110–120 nm beryllium layer were subjected to laser cleaning tests as well.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanomechanik (Meyer)
UniBasel Contributors:Meyer, Ernst and Marot, Laurent
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:23 Feb 2017 13:25
Deposited On:08 May 2015 08:45

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