On some properties of the metallic impurity influx during RF plasma generation and heating in the 'Uragan-3' torsatron

Autor:	A.N. Shapoval, V.G. Konovalov, V.V. Chechkin, L.I. Grigor'eva, V.V. Vasil'ev, V. S. Voitsenya, V.D. Sarana, A. S. Slavny, I.K. Nikol'sky, G.N. Polyakova
Rok vydání:	1990
Předmět:	Nuclear and High Energy Physics Chemistry Field line Divertor Plasma law.invention Nuclear Energy and Engineering Physics::Plasma Physics Sputtering law Impurity General Materials Science Vacuum chamber Electric potential Atomic physics Stellarator
Zdroj:	Journal of Nuclear Materials. :1083-1088
ISSN:	0022-3115
DOI:	10.1016/0022-3115(90)90196-t
Popis:	Results are presented from spectroscopic and collector probe measurements in the Uragan-3 torsatron. Impurity influx from the RF antennas is from sputtering by ions following the divertor field lines. Erosion of the helical winding casings is mainly due to background plasma interaction caused by oscillations in plasma potential. The deposition rate of metallic impurities in U-3 is one or two orders of magnitude less than in a conventional stellarator, due to the lack of a vacuum chamber in close proximity to the confinement region.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::834cbadee3eed4a76d2025e71dda0b94 https://doi.org/10.1016/0022-3115(90)90196-t Zobrazit plný text záznamu