학술논문

Probaability of Criticality for MOX SNF
Document Type
Technical Report
Author
Source
Subject
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS CRITICALITY
DESIGN
FISSION PRODUCTS
IRON OXIDES
NUCLEAR FUELS
OXIDES
PLUTONIUM
PROBABILITY
PWR TYPE REACTORS
WASTES
Language
English
Abstract
The purpose of this calculation is to provide a conservative (upper bound) estimate of the probability of criticality for mixed oxide (MOX) spent nuclear fuel (SNF) of the Westinghouse pressurized water reactor (PWR) design that has been proposed for use. with the Plutonium Disposition Program (Ref. 1, p. 2). This calculation uses a Monte Carlo technique similar to that used for ordinary commercial SNF (Ref. 2, Sections 2 and 5.2). Several scenarios, covering a range of parameters, are evaluated for criticality. Parameters specifying the loss of fission products and iron oxide from the waste package are particularly important. This calculation is associated with disposal of MOX SNF.