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DOE OSTI · 2477540

Shielding development for the spallation neutron source VENUS instrument

Popova, I. I.·Gallmeier, F. X.·Bilheux, H.·Hanks, R. A.
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Abstract

VENUS is a neutron imaging instrument that will use a broad range of neutron wavelengths, from epithermal to cold energies, and will include enhanced contrast mechanisms. It will offer novel energy-selective imaging techniques directly connecting complex engineering materials and systems’ structures, properties, and functions to reveal practical and fundamental answers about their real-world performance. Here, the instrument will be built at SNS beamline 10, facing the decoupled poisoned hydrogen moderator. The driving cost for the instrument is the beamline and instrument cave shielding. Final analyses were performed to evaluate the thickness and composition of shielding materials for the instrument cave and beamline to meet radiation safety criteria for the instrument to start up in 2024 after completing the SNS proton power upgrade.

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Popova, I. I., Gallmeier, F. X., Bilheux, H., Hanks, R. A.. 2024-08-30. Shielding development for the spallation neutron source VENUS instrument. https://doi.org/10.1016/j.nucengdes.2024.113542

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