Tore Supra装置と最近の実験結果

概要

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Tore Supra has been designed to be operated in long pulse (>30 sec) with high power additional heating (<30 MW). The main issue is to control the plasma density and impurity accumulation in high density and temperature plasma regime. The long pulse discharges have been operated at the nominal plasma current and steady-state toroidal magnetic field. A multi-pellets injector could successfully maintain a 4 ×10<SUP>19</SUP>m<SUP>3</SUP> quasistationary density with up to 25 pellets. Lower hybrid waves with power up to 3.8 MW have been launched driving up to 50 % of the total current with 22 sec operation. Modification of plasma boundary conditions by a pump limiter and an ergodic divertor (ED) has been investigated. Particularly ED can change the transport in the edge plasma and reduce the impurity influx.
社団法人プラズマ・核融合学会の論文