Energy removal and MHD performance of lithium capillary-pore systems for divertor target application

Experimental results of complex studies of lithium capillary-pore systems ( CPS) for application as a plasma facing structure in divertor and on the fi rst wall of a fusion reactor are reported. The ability of CPS to accept and to remove high heat fluxes (up to 30 MW m(-2)) in steady-state conditions (tens of minutes) has been evaluated on target plate imitator mock-ups supp lied with cooling and lithium feed systems under electron beam power load i n a linear plasma facility. Experimental study of lithium flow up to 2.5 m s(-1) in CPS made of material with final conductivity for various mesh size s and of the effect of cross magnetic field up to 1.6 T on its parameters h as been made. The results of successful experiments on the T-11M tokamak he lium and hydrogen plasma interaction with a CPS-based lithium limiter and l ithium puff influence on the plasma performances are presented and analysed . (C) 2000 Elsevier Science B.V. All rights reserved.