Isotopic Analysis of Actinides and Fission Products in LWR High-Burnup UO2Spent Fuels and its Comparison with Nuclide Composition Calculated Using JENDL, ENDF/B, JEF and JEFF

Autor:	Akihiro Sasahara, Tetsuo Matsumura, Giorgos Nicolaou, Yoshiaki Kiyanagi
Rok vydání:	2008
Předmět:	Nuclear and High Energy Physics Fission products chemistry.chemical_compound Nuclear fission product Nuclear Energy and Engineering Nuclear fuel Chemistry Radiochemistry Uranium dioxide Neutron source Actinide Nuclide Burnup
Zdroj:	Journal of Nuclear Science and Technology. 45:313-327
ISSN:	1881-1248 0022-3131
DOI:	10.1080/18811248.2008.9711440
Popis:	A chemical isotopic analysis of the actinides and fission products of a high-burnup PWR-UO2 fuel with an average burnup of 60.2 MWd/kgHM was carried out to accumulate extensive nuclide composition data. Furthermore, computational analysis was performed using the integrated burnup calculation code SWAT. The differences between the amounts obtained by the chemical isotopic analysis and SWAT calculation using JENDL-3.2, JENDL-3.3, ENDF/B-VI.5, ENDF/B-VI.8, JEF-2.2 and JEFF-3.0 were evaluated as the ratios of the calculated values to the experimental values (C/E ratios). For actinides, the calculated 244Cm amount, which is an important nuclide as a major neutron source in spent fuels, was underestimated. The main sensitive path for 244Cm was therefore investigated by a simple depletion calculation for actinides and the cause of the underestimation of the calculated 244Cm amount is discussed. The fission products 88Sr, 90Sr, 89Y, 106Ru, 133Cs, 135Cs and 144Nd, for which the C/E ratios were larger than 1.05 or ...
Databáze:	OpenAIRE
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