Quantifying fission yields at the National Ignition Facility using depleted uranium foil experiments

Quantifying fission yields at the National Ignition Facility using depleted uranium foil experiments

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There are programs for high-Z shell experiments at the National Ignition Facility (NIF).For shells made of actinide material, a quantitative Zanussi ZOA35675XK Side-opening Single Fan Oven With Programmable Tim fission diagnostic is needed in order to determine how much fission took place and whether the fission was sufficient to produce a non-negligible heat source in the burning capsule.Here, we present a viable coupled experimental and theoretical technique for making quantitative fission measurements possible.The proposed scheme involves using a well-characterized set of depleted uranium foils outside an NIF capsule to verify the conversion of xenon and krypton fission fragments collected at the Radiochemical Analysis of Gaseous Samples (RAGS) facility into total fission yield.We present the calculations needed for this conversion, including the decays in and out of Upholstered Storage Bench fission fragment chains during the RAGS pump-down of the NIF chamber.