Journal Article

PreJuSER-38111

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The porous vanadium as a plasma-facing material for the fusion devices

Zhmendak, A. V. ; Panechkina, V. V. ; Pavlov, S. N. ; Kvitcinsky, V. A. ; Verko, V. F. ; Mudretskaya, E. V. ; Huber, A.FZJ* ; Pospieszczyk, A.FZJ* ; Nedospasov, A. V. ; Sergienko, G.

2001
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/S0022-3115(00)00605-X

Abstract: 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 x 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 x 10(19) to 6 x 10(19) m(-3). (C) 2001 Elsevier Science B.V. All rights reserved.

Keyword(s): J ; plasma-material interaction (auto) ; vanadium (auto) ; lithium (auto) ; erosion (auto) ; limiter (auto) ; TEXTOR (auto)

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institutsbereich I (IPP-1)
2. Institutsbereich II (IPP-2)

Research Program(s):

1. Wandkonditionierung und Plasma-Wand-Prozesse (22.77.0)
2. Teilchen- und Energietransport in der Plasmarandschicht (22.88.5)
3. Verunreinigungsquellen in Tokamaks (22.87.5)

Appears in the scientific report 2001

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