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(FTP1/24) Experimental and Design Activity on Liquid Lithium Divertor

V. A. Evtikhin¹⁾, I. E. Lyublinski¹⁾, A. V. Vertkov¹⁾, A. N. Chumanov¹⁾, N. M. Afanasiev¹⁾, V. N. Shpoliansky¹⁾, B. I. Khripunov²⁾, V. B. Petrov²⁾, S. V. Mirnov³⁾, V. M. Korzhavin⁴⁾, L. G. Golubchikov^4)
 
1) SE ``Red Star'' - ``Prana-Centre'' Co, Moscow, Russian Federation
²⁾ NFI RPC ``Kurchatov Institute'', Moscow, Russian Federation
³⁾ TRINITI; Troitsk, Moscow Region, Russian Federation
⁴⁾ RF Ministry for Atomic Energy, Moscow, Russian Federation

Abstract.  Results of lithium divertor investigation designed for 400 MW power removal under steady-state operation condition (DEMO-S project) are presented and a possibility to solve the problems of efficient condensation of evaporated lithium, of heat removal, of lithium flow in a strong magnetic field, of heat output, of tritium recovery from lithium and the others is shown. Feasibility of the lithium divertor concept has been confirmed by the results of successful tests of lithium limiter in various modifications in the T-11M tokamak experiments with hydrogen and helium plasmas and by experimental studies of lithium capillary-pore systems interacting with pulsed plasma and with electron beam in the steady state. Further directions of experimental, calculated and design studies needed for the development and substantiation of the lithium divertor concept with capillary-pore systems are analyzed.

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