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Hu Yuying; Yao Dong; Yu Yingrui; Liao Hongkuan; Zhou Bingyan; Luo Qi, E-mail: 18200315798@sina.cn
Proceedings of reactor physics Asia conference 2019 (RPHA19)2020
Proceedings of reactor physics Asia conference 2019 (RPHA19)2020
AbstractAbstract
[en] Burnup is an important part of physical calculation in reactors. The accuracy of results deeply influences critical physical characteristics of reactor such as the cycle length, reactivity and power distribution. Algorithm of solving burnup equations directly relates to the accuracy and efficiency of burnup calculation. In this study, an improved Chebyshev Rational Approximation Method, Combined algorithm, has been sed to solve burnup equations. According to verification and analysis, comparing to CRAM, Combined algorithm has higher efficiency in large matrices. For the little burnup benchmark, the relative error could reach to 10-5, worse than CRAM in calculation accuracy, but it basically meets the calculation requirements. (author)
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Source
Pyeon, Cheol Ho; Yamanaka, Masao (Kyoto University, Institute for Integrated Radiation and Nuclear Science, Kumatori, Osaka (Japan)) (eds.); Ohoka, Yasunori (ed.) (Nuclear Fuel Industries, Ltd., Yokohama, Kanagawa (Japan)); Tsujita, Kosuke (ed.) (Nuclear Engineering, Ltd., Osaka (Japan)); Kyoto University, Institute for Integrated Radiation and Nuclear Science, Kumatori, Osaka (Japan); [321 p.]; Nov 2020; p. 139-142; RPHA19: Reactor physics Asia conference 2019; Osaka (Japan); 2-3 Dec 2019; Also available from https://www.rri.kyoto-u.ac.jp/PUB/report/09_kurns/temp/kurns-ekr-005.pdf; 7 refs., 2 figs., 1 tab.
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Report
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Conference
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ACTINIDE NUCLEI, ALPHA DECAY RADIOISOTOPES, BARYON REACTIONS, CALCULATION METHODS, EVEN-EVEN NUCLEI, EVEN-ODD NUCLEI, HADRON REACTIONS, HEAVY NUCLEI, INTERNAL CONVERSION RADIOISOTOPES, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MATERIALS, MATRICES, MINUTES LIVING RADIOISOTOPES, NUCLEAR REACTIONS, NUCLEI, NUCLEON REACTIONS, PHYSICS, RADIOACTIVE MATERIALS, RADIOISOTOPES, SPONTANEOUS FISSION RADIOISOTOPES, TRANSFORMATIONS, URANIUM ISOTOPES, YEARS LIVING RADIOISOTOPES
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