Simulation of fusion α-component in a tokamak with He3 plasma and high power NBL

The high energy proton component generated by the high power (∼ 10 MW) NBI with beam ions energy ∼ 1MeV into the helium plasma is investigated. The resulting proton component is shown to simulate the alphas in a thermonuclear reactor quite well. The protons driven collective effects are reported. It is shown that in a tokamak with high energy NBI the experimental investigation of hot protons driven TAE modes and the determination of the threshold value of the proton beta of TAE excitation will be possible in a wide plasma and device parameters range. (author). 4 figs, 3 tabs