The porous vanadium as a plasma facing material for the fusion devices

Autor:	V.F. Virko, A. Pospieszczyk, E. V. Mudretskaya, S.N. Pavlov, V.V. Panechkina, A. Huber, A.V. Nedospasov, A.V. Zhmendak, V.A. Kvitcinskiy, G. Sergienko
Rok vydání:	2001
Předmět:	Nuclear and High Energy Physics Tokamak Chemistry Analytical chemistry chemistry.chemical_element Vanadium Plasma Electric charge Cathode law.invention Nuclear Energy and Engineering law Limiter General Materials Science Lithium Plasma-facing material
Zdroj:	Journal of Nuclear Materials. :220-223
ISSN:	0022-3115
DOI:	10.1016/s0022-3115(00)00605-x
Popis:	The purpose of this work is to investigate a possibility to use porous vanadium as components for the first wall of a tokamak-reactor which can accept the halo-currents generated during a disruption in a tokamak. Samples of pure porous vanadium were tested in pulse high current discharges in lithium plasmas. A total electric charge up to 1000 C flowed through the sample in the series of the discharges. The measured erosion was about of 3×10 −5 g/C when the sample was used as a cathode. Samples of pure porous vanadium were also tested in TEXTOR-94. This was inserted into a carbon test limiter. The test limiter was placed in the scrape-of-layer of the main toroidal ALT-II limiter. Vanadium, deuterium and carbon were measured spectroscopically. The estimated relative flux of the vanadium atoms to deuterium atoms drops from 3.8% to 0.4% with line average electron density increase from 2.5×10 19 to 6×10 19 m −3 .
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8ada22d395308b4f22982e50a65ffaac https://doi.org/10.1016/s0022-3115(00)00605-x Zobrazit plný text záznamu Full Text from ScienceDirect