Publication: Optimization of the technological system of a closed lithium circuit at T-11M tokamak ОПТИМИЗАЦИЯ ТЕХНОЛОГИЧЕСКОИ СИСТЕМЫ ЗАМКНУТОГО ЛИТИЕВОГО КОНТУРА НА ТОКАМАКЕ Т-11М
Дата
2020
Авторы
Djurik, A. S.
Lazarev, V. B.
Vasina, Ya. A.
Prishvitcyn, A. S.
Mirnov, S. V.
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© 2020 National Research Center Kurchatov Institute. All rights reserved.The paper is devoted to physical issues of technology for creating the first wall of a stationary tokamak reactor using lithium protection. The emitter-collector circuit of lithium circulation in the plasma of column-wall space is analyzed. The main subject of analysis is the search for the most effective emitter-collector configurations. Experiments were conducted on the tokamak T-11M using diagnostics in the visible and infrared range of plasma and collectors made on the basis of capillary porous systems (CPS) filled of lithium. In addition to optical methods, the behavior of the protective lithium layer was studied using a Mach probe. As a result, it was found that of the four possible collector combinations, the most optimal is «symmetrical», when geometrically identical collectors are installed along the torus by 180o. This way suppresses the development of magnetic islands caused by a presence of collectors, and as a result, prevents increased transfer of lithium, to inside of the plasma column, and to the wall. A practical recommendation that can be made on this basis is all lithium emitters and collectors of tokamaks, where it is assumed to use the emitter-collector circuit, should be installed symmetrically and in pairs.
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Optimization of the technological system of a closed lithium circuit at T-11M tokamak ОПТИМИЗАЦИЯ ТЕХНОЛОГИЧЕСКОИ СИСТЕМЫ ЗАМКНУТОГО ЛИТИЕВОГО КОНТУРА НА ТОКАМАКЕ Т-11М / Djurik, A.S. [et al.] // Problems of Atomic Science and Technology, Series Thermonuclear Fusion. - 2020. - 43. - № 3. - P. 47-59. - 10.21517/0202-3822-2020-43-3-47-59