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j.anucene.2019.107108.pdf | 598.35 kB | Adobe PDF | 見る/開く |
タイトル: | Monte Carlo sensitivity analysis method for the effective delayed neutron fraction with the differential operator sampling method |
著者: | Yamamoto, Toshihiro https://orcid.org/0000-0001-6709-0432 (unconfirmed) Sakamoto, Hiroki |
著者名の別形: | 山本, 俊弘 |
キーワード: | Effective delayed neutron fraction Monte Carlo Sensitivity analysis Differential operator |
発行日: | 1-Jun-2020 |
出版者: | Elsevier BV |
誌名: | Annals of Nuclear Energy |
巻: | 140 |
論文番号: | 107108 |
抄録: | An exact Monte Carlo method for evaluating the sensitivity coefficients of the effective delayed neutron fraction (βeff) with respect to nuclear data is developed using the differential operator sampling (DOS) method. This development includes combining the two characteristic features of the DOS method: the exact evaluation of βeff and the sensitivity analyses of the k- and α-eigenvalues. Numerical tests are performed to calculate the sensitivity coefficients of βeff with the newly developed Monte Carlo method. The new Monte Carlo method's sensitivities mostly are in accordance with the reference solutions that were obtained by a deterministic discrete ordinates method based on the perturbation theory. In particular, the sensitivities of βeff to the yield and spectrum of delayed neutrons, which are dominant contributors to the uncertainty of βeff, can be predicted precisely by the new method. |
著作権等: | © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The full-text file will be made open to the public on 1 June 2022 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/252321 |
DOI(出版社版): | 10.1016/j.anucene.2019.107108 |
出現コレクション: | 学術雑誌掲載論文等 |
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