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Subcriticality measurement using time-domain decomposition-based integral method for simultaneous reactivity and source changes
http://hdl.handle.net/2237/00032071
http://hdl.handle.net/2237/0003207174684cbc-46fc-4f22-8b88-55e694da5858
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-04-22 | |||||
タイトル | ||||||
タイトル | Subcriticality measurement using time-domain decomposition-based integral method for simultaneous reactivity and source changes | |||||
言語 | en | |||||
著者 |
Endo, Tomohiro
× Endo, Tomohiro× Nonaka, Asahi× Imai, Sho× Yamamoto, Akio× Sakon, Atsushi× Hashimoto, Kengo |
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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 11/01/2020, available online: http://www.tandfonline.com/10.1080/00223131.2019.1706658. | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | UTR-KINKI | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | subcriticality | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | transient measurement | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | control rod | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | neutron source | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | point kinetics theory | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | integral method | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | random sampling method | |||||
抄録 | ||||||
内容記述 | To estimate the subcriticality in dollar units for an arbitrary state-change, the time-domain decomposition-based integral method (TDDI) is proposed using the point kinetics theory based on the fundamental mode approximation. In a general transient subcritical system, reactivity, neutron source intensity, and point kinetics parameters can vary simultaneously. Furthermore, the state-change may not necessarily be a stepwise change. For such a transient, the TDDI method can estimate the subcriticality after the transient using only the time variation of the neutron count rate. Therefore, the proposed method is useful to approximately estimate the subcriticality in a system where a detailed core configuration is unknown. To investigate the applicability of the TDDI method, transient experiments with simultaneous reactivity and source changes or to two successive safety rods dropping were performed at the Kindai University Training and Research Reactor (UTR-KINKI). By comparing with reference values using excess reactivity and control rod worth, it was validated that the subcriticality values obtained by the TDDI method better agree with the reference values than the previous integral method. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | Published online: 11 Jan 2020 ファイル公開:2021/01/11 | |||||
言語 | en | |||||
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/10.1080/00223131.2019.1706658 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0022-3131 | |||||
書誌情報 |
en : Journal of Nuclear Science and Technology 巻 57, 号 5, p. 607-616, 発行日 2020-01 |
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著者版フラグ | ||||||
値 | author |