Beryllium film deposition in cavity samples in remote areas of the JET divertor during the 2011–2012 ITER-like wall campaign

Autor: S. Krat, M. Mayer, U. von Toussaint, P. Coad, A. Widdowson, Yu. Gasparyan, A. Pisarev
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Nuclear Materials and Energy, Vol 12, Iss , Pp 548-552 (2017)
Druh dokumentu: article
ISSN: 2352-1791
DOI: 10.1016/j.nme.2016.12.005
Popis: Beryllium film deposition was studied with cavity samples in remote areas of the inner and outer JET divertor and below divertor tile 5 during the 2011–2012 campaign with the ITER-like wall. Predominantly beryllium films were formed inside the cavities with some additional carbon, the ratio Be/C was >2. These deposited layers had high D/(Be+C) ratios of about 0.3. The formation of these films is mainly due to sticking of beryllium-containing particles with low sticking coefficients
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