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Sensitivity analysis of prompt neutron decay constant using perturbation theory
http://hdl.handle.net/2237/00028771
http://hdl.handle.net/2237/000287715542594c-b4b9-49b5-bc07-35467cf2da76
名前 / ファイル | ライセンス | アクション |
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JNST55(11)_pp1245-1254_2018 (543.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-11-12 | |||||
タイトル | ||||||
タイトル | Sensitivity analysis of prompt neutron decay constant using perturbation theory | |||||
言語 | en | |||||
著者 |
Endo, Tomohiro
× Endo, Tomohiro× Yamamoto, Akio |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | This is an Accepted Manuscript of an article published by Taylor & Francis Group in Journal of Nuclear Science and Technology on 17/08/2018, available online: http://www.tandfonline.com/10.1080/00223131.2018.1491902. | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ω-eigenvalue | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | sensitivity analysis | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | first-order perturbation theory | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | adjoint | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | uncertainty | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | covariance | |||||
抄録 | ||||||
内容記述 | Experimental results of prompt neutron decay constant α is useful information to validate numerical results of ω-eigenvalue for spatial and energetic fundamental mode. In order to accomplish the data assimilation technique using α, it is desirable to establish an efficient numerical calculation method for sensitivity coefficient analysis of α. For this purpose, the numerical calculation method using the first-order perturbation theory is investigated. A specific theoretical formula is derived to evaluate the sensitivity coefficient of α to nuclear data. The derived rigorous formula utilizes forward and adjoint eigenfunctions which consist of neutron flux and delayed neutron precursor densities. Using the prompt approximation, the derived formula can be simplified without the term involving the delayed neutron precursor densities. By calculating α using the multi-energy-group neutron transport code for an ICSBEP benchmark problem, the derived formula for sensitivity analysis using the perturbation theory is verified by comparing with the reference results using the direct method. Consequently, the efficient numerical procedures for uncertainty quantification of α can be established by the aid of the sensitivity coefficients based on the perturbation theory. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | ファイル公開:2019/08/17 | |||||
言語 | ja | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Taylor & Francis | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1080/00223131.2018.1491902 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0022-3131 | |||||
ISSN(Online) | ||||||
収録物識別子タイプ | EISSN | |||||
収録物識別子 | 1881-1248 | |||||
書誌情報 |
en : Journal of Nuclear Science and Technology 巻 55, 号 11, p. 1245-1254, 発行日 2018-08-17 |
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著者版フラグ | ||||||
値 | author |