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Report No.

Fuelling and heat / particle control

Takenaga, Hidenobu; Morisaki, Tomohiro*

Status and prospect are reported for studies on an efficient fuelling scenario and on heat and particle control for realizing effective heat removal and particle cycle towards steady state operation in a fusion reactor. First, heat and particle balance expected in a fusion reactor are shown and issues on fuelling and heat/particle control are discussed. There are many common issues in torus plasmas. Next, following issues are highlighted with comparison of studies in tokamak and helical devices, i.e. (1) effect of ice pellet injection, which is considered as a fuelling method in a fusion reactor, on plasma performance, (2) reduction of heat load to the divertor plates for realizing effective heat removal and (3) tritium retention in the first wall, which affects tritium balance.



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