核燃焼プラズマの現状と問題点

概要

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First tokamak experiments using tritium were done with the tritium concentration of 11% on JET in 1991. In TFTR, full DT burning experiments with the tritium concentration of 〜50% have been carried out since December 1993, where the neutron emission of 2.2 X 10^<18> n/s and the fusion power of 6.2 MW were obtained. Global energy confinement of the DT plasmas were better than that of DD ones. Intense mass effect has been observed on the ion confinement. Alpha particle heating and mass effect on the electron confinement have not been evaluated quantitatively. Either the toroidal Alfven eigenmode (TAE) exited by alpha particles or anormalous losses of alpha particles have not been observed yet. Some diagnostics detected signals of confined alphas, but they are on the stage of the development.
社団法人プラズマ・核融合学会の論文
1994-06-25