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DOE OSTI · 1923656

Neutron Pulsed Die-Away Experiments at LLNL [Slides]

Araj, Ruby·Siefman, Daniel·Heinrichs, D.·Holmes, J.·Zerkle, M.·Percher, C.
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Abstract

This presentation discusses why PNDA is ideal for TSL validations as it does not require fissile material, it has very simple target shapes and compositions, it is only sensitive to absorption and scattering of target medium, and that well conducted experiments have uncertainties of 0.1% - 0.5%. The presentation concludes by examining PNDA’s advantages and its role in nuclear data validations as it offers a cost-effective experiment for an integral benchmark, it provides the ability to focus on specific cross section data validation including thermal neutron absorption and thermal scattering laws, and the low experimental uncertainty makes it an excellent benchmark candidate. Additionally, it is easily tunable and can facilitate temperature dependent cross section validation by cooling or heating up targets.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSBessel FunctionEigenvalueIntegral ExperimentsNuclear Criticality Safety Program (NCSP)Pulsed Neutron Die Away (PNDA)Thermal Scattering Law (TSL)

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Araj, Ruby, Siefman, Daniel, Heinrichs, D., Holmes, J., Zerkle, M., Percher, C.. 2022-11-01. Neutron Pulsed Die-Away Experiments at LLNL [Slides]. https://doi.org/10.2172/1923656

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