Utilization of (alpha,N) and (alpha, alpha' gamma) Reactions for Measurement of Fast alpha Particle Confinement and Velocity Distribution

摘要

For the purpose of diagnosing alpha particle confinement and velocity distribution in fusion plasmas, we consider several (/alpha/,n) and (/alpha/,/alpha/'/gamma/) reactions with impurities or introduced elements. Flux and energy spectra of emerging particles are calculated under different conditions. Account is also taken of the high neutron and gamma background. Finally, we conclude that, due to the nature of the alpha particles, one needs to utilize several reactions and different kinds of diagnostics to fully explore the confinement and velocity distribution of the alpha particles. (ERA citation 13:023851)