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

Autor: Alexander Lukin, Stefan Matejcik, Soare Sorin, Francesco Romanelli, Alexander Pisarev, Emilio Blanco, Udo Von Toussaint, Matej Mayer, Stepan Krat, Anna Widdowson, Bohdan Bieg, Yury Gasparyan, Vladislav Plyusnin, José Vicente, Alberto Loarte, Rajnikant Makwana, CHIARA MARCHETTO, Marco Wischmeier, Choong-Seock Chang, Aneta Gójska, Manuel Garcia-munoz
Přispěvatelé: JET Contributors, Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla. RNM138: Física Nuclear Aplicada
Rok vydání: 2017
Předmět:
Zdroj: Nuclear Materials and Energy
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
Nuclear Materials and Energy, Vol 12, Iss, Pp 548-552 (2017)
idUS: Depósito de Investigación de la Universidad de Sevilla
Universidad de Sevilla (US)
ISSN: 2352-1791
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 < 0.5. The observed surface loss probabilities depend on the position in the divertor. The particles responsible for film deposition originated from the location of in the divertor strike points. (C) 2016 Elsevier Ltd. For complete list of authors see http://dx.doi.org/10.1016/j.nme.2016.12.005
Databáze: OpenAIRE