Evolution of isotopic composition of reprocessed uranium during the multiple recycling in light water reactors with natural uranium feed

A complex approach based on the consistent modeling of neutron-physics processes and processes of cascade separation of isotopes is applied for analyzing physical problems of the multiple usage of reprocessed uranium in the fuel cycle of light water reactors. A number of scenarios of multiple recycl...

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Bibliographic Details
Published in:Physics of atomic nuclei 2012-12, Vol.75 (13), p.1616-1625
Main Authors: Smirnov, A. Yu, Sulaberidze, G. A., Alekseev, P. N., Dudnikov, A. A., Nevinitsa, V. A., Proselkov, V. N., Chibinyaev, A. V.
Format: Article
Language:English
Subjects:
ABSORPTION
Analysis
COMPUTERIZED SIMULATION
ENRICHMENT
FUEL CYCLE
ISOTOPE RATIO
ISOTOPE SEPARATION
NATURAL URANIUM
NEUTRONS
NUCLEAR FUEL CYCLE AND FUEL MATERIALS
Particle and Nuclear Physics
Physics
Physics and Astronomy
Recycling (Waste, etc.)
REPROCESSING
Uranium
URANIUM 232
URANIUM 235
URANIUM 236
WATER COOLED REACTORS
WATER MODERATED REACTORS
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Summary:A complex approach based on the consistent modeling of neutron-physics processes and processes of cascade separation of isotopes is applied for analyzing physical problems of the multiple usage of reprocessed uranium in the fuel cycle of light water reactors. A number of scenarios of multiple recycling of reprocessed uranium in light water reactors are considered. In the process, an excess absorption of neutrons by the 236 U isotope is compensated by re-enrichment in the 235 U isotope. Specific consumptions of natural uranium for re-enrichment of the reprocessed uranium depending on the content of the 232 U isotope are obtained.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778812130078