The behavior of a fusioning neo-classical tokamak plasma

On the basis of the neo-classical transport theory of a plasma with multiple ion species, the transports of deuteron, triton, and alpha particle are treated, and the behavior of the fusioning plasma of a Tokamak Fusion Test Reactor is examined numerically. Four cases, which are different with each other in the initial ratio of D-T mixture, concentration of high-Z impurity, and injection energy of neutral beam heating, are examined in detail, and the conditions to reach self-sustaining burning states are obtained. (auth.)