Large energy transfer reactions in ion slowing-down problems: their effect on plasma properties and a multigroup method to take them into account

Effects of nuclear elastic scattering and large angle ion-ion Coulomb interactions causing large energy transfers from energetic ions slowing down in plasmas to the plasma ions are examined. The effects examined are the fusion probability, the slowing down time, and the fraction of the ion energy imparted to the plasma ions and electrons. A new multigroup method for the solution of the ion slowing-down equation that can accurately take into account large energy transfer reactions is described