Experimental test of the system of vertical and longitudinal lithium limiters on T-11M tokamak as a prototype of plasma facing components of a steady-state fusion neutron source

A new functional model of the prototype of closed Li circuit for protection of the chamber wall was tested in T-11M tokamak by simultaneous use of the vertical Li limiter as an emitter of Li and a new longitudinal Li limiter as its collector. Such technological scheme can be suggested for the steady...

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Bibliographic Details
Published in:Nuclear fusion 2015-11, Vol.55 (12), p.123015
Main Authors: Mirnov, S.V., Belov, A.M., Djigailo, N.T., Dzhurik, A.S., Kravchuk, S.I., Lazarev, V.B., Lyublinski, I.E., Vertkov, A.V., Zharkov, M.Yu, Shcherbak, A.N.
Format: Article
Language:English
Subjects:
divertor
limiter
liquid lithium
plasma facing components
tokamak
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Summary:A new functional model of the prototype of closed Li circuit for protection of the chamber wall was tested in T-11M tokamak by simultaneous use of the vertical Li limiter as an emitter of Li and a new longitudinal Li limiter as its collector. Such technological scheme can be suggested for the steady-state fusion neutron source on the tokamak basis. During plasma shots the cryogenic target of T-11M collected Li flow emitted by the vertical capillary Li limiter almost completely (up to 80%). These Li and hydrogen isotopes were captured and extracted outside the tokamak vacuum chamber without venting of the vessel which is a key requirement for the use of Li in the steady-state tokamak reactor.
ISSN:0029-5515
1741-4326
DOI:10.1088/0029-5515/55/12/123015