Gamma Reaction History on Sandia's Z Machine
POSTER
Abstract
Reaction History diagnostics are being fielded on Sandia's Z machine to demonstrate the ability to measure gamma ray reaction history. Tritium introduction into the Z experiments provides necessary gammas for analysis of the reaction history. We will outline the proposed experiments which include mixtures of deuterium (99{\%}) and tritium (1{\%}) as well as deuterium (50{\%}) and helium 3 (50{\%}) with the ultimate goal of diagnosing the evolution of the fusion plasma on Z. D$^{\mathrm{3}}$He also has a steep dependence on ion temperature, making the reactivity ratio between DT and D$^{\mathrm{3}}$He a sensitive ion temperature indicator. D$^{\mathrm{3}}$He is also highly sensitive to non-thermal beam reactions and can provide an indication of the degree of thermalization of the fusion plasmas.
*Los Alamos National Lab is operated by Triad National Security, LLC for the National Nuclear Security Administration of U.S. Department of Energy under contract 89233218CNA000001. Sandia National Lab is a multi-mission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525