Criticality safety evaluation for long term storage of FFTF fuel in interim storage casks | Zendy

R.F. Richard | Zendy

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Criticality safety evaluation for long term storage of FFTF fuel in interim storage casks

Author(s) -

R.F. Richard

Publication year - 1995

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/81037

Subject(s) - spent nuclear fuel , mox fuel , cladding (metalworking) , hot cell , waste management , plutonium , corrosion , nuclear engineering , environmental science , materials science , metallurgy , uranium , engineering , chemistry , radiochemistry

It has been postulated that a degradation phenomenon, referred to as ``hot cell rot``, may affect irradiated FFTF mixed plutonium-uranium oxide (MOX) fuel during dry interim storage. ``Hot cell rot`` refers to a variety of phenomena that degrade fuel pin cladding during exposure to air and inert gas environments. It is thought to be a form of caustic stress corrosion cracking or environmentally assisted cracking. Here, a criticality safety analysis was performed to address the effect of the ``hot cell rot`` phenomenon on the long term storage of irradiated FFTF fuel in core component containers. The results show that seven FFTF fuel assemblies or six Ident-69 pin containers stored in core component containers within interim storage casks will remain safely subcritical

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