Comprehensive sets of Xe 124 (n,γ) Xe 125 and Xe 124 (n,2n) Xe 123 cross-section data for assessment of inertial-confinement deuterium-tritium fusion plasma
© 2015 American Physical Society. Measurements of the neutron radiative-capture cross section of Xe124 have been performed for the first time for neutron energies above 100 keV. In addition, data for the Xe124(n,2n)Xe123 reaction cross section have been obtained from threshold to 14.8 MeV to cover the entire energy range of interest, while previous data existed only at around 14 MeV. The results of these measurements provide the basis for an alternative and sensitive diagnostic tool for investigating properties of the inertial confinement fusion plasma in deuterium-tritium (DT) capsules at the National Ignition Facility located at Lawrence Livermore National Laboratory. Here, areal density ρR (density × radius) of the fuel, burn asymmetry, and fuel-ablator mix are of special interest. The Xe124(n,γ)Xe125 reaction probes the down-scattered neutrons, while the Xe124(n,2n)Xe123 reaction provides a measure of the 14 MeV direct neutrons.
Bhike, M; Fallin, B; Gooden, ME; Ludin, N; Tornow, W
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