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- KITADA Takanori
- Department of Nuclear Engineering Graduate School of Engineering Osaka University
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- KURODA Mitsuo
- Department of Nuclear Engineering Graduate School of Engineering Osaka University
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- TAKEDA Toshikazu
- Department of Nuclear Engineering Graduate School of Engineering Osaka University
書誌事項
- タイトル別名
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- Improvement of Fitting Method of Multib
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To accurately perform cell calculations of nuclear reactors, a new fitting procedure has been developed for calculating multiband parameters, which are necessary for effective cross section calculations. By using the new fitting procedure, the error of multiband parameters becomes always zero. Reactor cell calculations have been performed to compare the effective cross sections and the infinite multiplication factors etc. calculated using the multiband parameters obtained by the new and the conventional fitting procedures by using the cross section set based on the JENDL-3.1(1) library with 107 energy groups. It is found that there is a small difference of the calculational results between the two fitting procedures and it is found from burnup calculations that the difference of the infinite multiplication factors is not dependent on the burnup period up to about 30GWd/t. The onion skin effect can be exactly treated by dividing a fuel pellet to multiple regions and by using the multiband method. Thus the difference of burnup properties between two fitting procedures are investigated for the divided and the undivided fueled cells. The total inventory of Pu, Am etc. at the divided case is almost the same to the undivided case at the end of the burnup period. However it is found that the radial distribution of atomic density is slightly different between the two fitting procedures.
収録刊行物
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- Journal of Nuclear Science and Technology(日本原子力学会英文論文誌)
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Journal of Nuclear Science and Technology(日本原子力学会英文論文誌) 34 (7), 638-643, 1997
一般社団法人 日本原子力学会
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詳細情報 詳細情報について
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- CRID
- 1390001204096221952
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- NII論文ID
- 10002077481
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- NII書誌ID
- AA00703720
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- COI
- 1:CAS:528:DyaK2sXls1Kjsbg%3D
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- ISSN
- 18811248
- 00223131
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- NDL書誌ID
- 4260272
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可