A bounding criticality source was developed based on the composition of the UNF. MCNP was selected as an analysis tool because it could model complicated geometry, and it could track gamma and neutron radiation. Despite these results, because the glass contained significant amounts of lead and little neutron absorbing material, some doubt lingered regarding the effectiveness of the windows in neutron shielding situations, such as during an accidental criticality. Prior to the shielding analysis, shield testing with a gamma ray source was conducted, and the windows were found to be very effective gamma shields. Operations in the hot cell center on used nuclear fuel (UNF) processing. Each 4-ft thick window uses nine glass slabs, an oil film between the slabs, numerous steel plates, and packed lead wool. This paper describes the shielding analysis methodology. In conjunction with the upgrade effort, shielding analysis of the Fuel Conditioning Facility (FCF) hot cell windows has been conducted. The Idaho National Laboratory Materials and Fuels Complex nuclear facilities are undergoing a documented safety analysis upgrade. International Nuclear Information System (INIS) Hot Cell Window Shielding Analysis Using MCNP
