Nuclear reaction diagnostics of fast confined and escaping alpha particles

The resonant nuclear reactions D(α,γ) 6Li, 6Li(α,γ) 10B, and 7Li(α,γ) 11B are examined as diagnostics of the energy distribution of confined fast alpha particles in tokamak plasmas. Reaction rates for Q=1 D-T plasmas are estimated. The design of and preliminary results from the prototype fusion gamma ray detector on the tokamak fusion test reactor (TFTR) will be presented. The activation reactions 10B(α,n) 13N, 14N(α,γ) 18F, 25Mg(α,p) 28Al, and 27Al(α,p) 30P are similarly examined as diagnostics of fast escaping alpha particles. Count rate estimates for Q=1 D-T plasmas will be presented.