Neutron Characterization of Encapsulated ATF-1/LANL-1 Mockup Fuel Capsules

Technical Report · Thu Sep 28 00:00:00 EDT 2017

DOI:https://doi.org/10.2172/1396105· OSTI ID:1396105

Vogel, Sven C. ^[1]; Borges, Nicholas Paul ^[1]; Losko, Adrian Simon ^[1]; Mosby, Shea Morgan ^[1]; Voit, Stewart Lancaster ^[1]; White, Joshua Taylor ^[1]; Byler, Darrin David ^[1]; Dunwoody, John Tyler ^[1]; Nelson, Andrew Thomas ^[1]; Mcclellan, Kenneth James ^[1]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Twenty pellets of mock-up accident tolerant fuels UN-U3Si5 were produced at LANL and loaded in two rodlet/capsule assemblies. Tomographic imaging and diffraction measurements were performed to characterize these samples at the Flight-Path 5 and HIPPO beam lines at LANSCE/LANL between November 2016 and January 2017 as well as in August 2017. The entire ~10 cm long, ~1 cm diameter fuel volume could be characterized, however due to time constraints only 2 mm slices in 4mm increments were characterized with neutron diffraction and a 28mm subset of the entire sample was characterized with energy-resolved neutron imaging. The double encapsulation of the fuel into two steel containers does not pose a problem for the neutron analysis and the methods could be applied to enriched as well irradiated fuels.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1396105
• Report Number(s): LA-UR-17-28837
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
Nuclear
Imaging
Fuel
Diffraction
Resonances
Absorption
Tomography
Radiography