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Effects of fuel enrichment on the physics characteristics of plutonium-fueled light water high converter reactors

Journal Article · · Nucl. Technol.; (United States)
OSTI ID:5467044
Investigations have been carried out for three additional cores of the phase 1 experimental program on light water high converter reactor test lattices in the PROTEUS facility. An 8% (average) fissile plutonium tight-pitch lattice with a fuel/moderator volumetric ratio of 2.0 was considered. As for the earlier reported 6% (average) fissile plutonium test lattice, H/sub 2/O, Dowtherm, and air were the moderator state investigated. Significant enrichment-dependent trends have been identified in the comparisons of calculated and experimental results for the wet (moderated cases, particularly for the important reaction rate ratio of /sup 238/U capture of /sup 239/Pu fission. These are then reflected in the comparison of moderator voidage characteristics, expressed in terms of individual components of the kinfinity void coefficient.
Research Organization:
Swiss Federal Institute for Reactor Research, 5303 Wurenlingen
OSTI ID:
5467044
Journal Information:
Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 73:3; ISSN NUTYB
Country of Publication:
United States
Language:
English