The effect of the Super-X divertor of MAST Upgrade on impurity radiation as modelled by SOLPS

Autor:	G. Fishpool, E. Havlickova, Bruce Lipschultz, M. Wischmeier
Rok vydání:	2015
Předmět:	Nuclear and High Energy Physics Upgrade Materials science Nuclear Energy and Engineering Physics::Plasma Physics Power Balance Impurity Divertor General Materials Science Seeding Plasma Radiation Atomic physics
Zdroj:	Journal of Nuclear Materials
ISSN:	0022-3115
DOI:	10.1016/j.jnucmat.2014.10.073
Popis:	An impurity seeding scan has been simulated in three different divertor configurations of MAST-U, showing the effect of the divertor geometry on the transition to detachment. The three configurations include a conventional short divertor, a Super-X divertor with large poloidal flux expansion and a Super-X divertor with small poloidal flux expansion. Both Super-X configurations detach at the same impurity seeding rate, while the detachment threshold in the conventional divertor is much higher. A comparison of SOLPS results for all configurations is presented in a detaching plasma with target temperatures around 5 eV. The total power balance, the distribution of radiation and the divertor closure with respect to neutrals and impurities is analyzed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1c5fc576c21d966708e9326e82e41b0 https://doi.org/10.1016/j.jnucmat.2014.10.073 Zobrazit plný text záznamu Full Text from ScienceDirect