Fusion-Product Transport in Axisymmetric Tokamaks: Losses and Thermalization

摘要

High-energy fusion-product losses from an axisymmetric tokamak plasma are studied. Prompt-escape loss fluxes (i.e. prior to slowing down) are calculated including the non-separable dependence of flux as a function of poloidal angle and local angle-of-incidence at the first wall. Fusion-product (fp) thermalization and heating are calculated assuming classical slowing down. The present analytical model describes fast ion orbits and their distribution function in realistic, high- beta , non-circular tokamak equilibria. First-orbit losses, trapping effects, and slowing-down drifts are also treated. (ERA citation 05:021480)