Fusion Reaction Rate Coefficient for Different Beam and Target Scenarios

摘要: Fusion power output is proportional not only to the fuel particle number densities participating in reaction but also fusion rate coefficient (or reactivity), which dependent on reactant velocity distribution functions. They are usually assumed be dual Maxwellian functions with same temperature for thermal nuclear circumstances. However, if high neutral beam injection and minority ion species ICRF plasma heating, or multi-pinched head-on collision, a converging region required investigated future large scale reactors, then fractions of injected energetic fast tail resulting from ionization charge exchange will enough their contribution non-Maxwellian negligible, hence calculation power. In such cases, beam-target, beam-beam enhancement effect contributions should play very important roles. this paper, several useful formulae calculate different target combination scenarios derived detail.