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Fukui Y, Endo T, Yamamoto A, Maruyama S. Development of a robust nuclear data adjustment method to outliers. EPJ WEB OF CONFERENCES 2023. [DOI: 10.1051/epjconf/202328100006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023] Open
Abstract
We developed a new nuclear data adjustment method for experimental data containing outliers. This method mitigates the effect of outliers by applying M-estimation, a type of robust estimation, to the conventional nuclear data adjustment method using sensitivity coefficients. Based on the M-estimation, we derived a weighted nuclear data adjustment formula and developed a weight calculation method. The weighted nuclear data adjustment formula was derived by weighting the function to take the extremum of the conventional nuclear data adjustment. The weighting of each nuclear characteristic is calculated from the difference between the measured and calculated values of the nuclear characteristic. This weight calculation method can evaluate the validity of each nuclear characteristic by considering correlations between nuclear characteristics using singular value decomposition. The proposed method and the conventional method were compared and verified by twin experiments. In the twin experiments, the nuclear data were adjusted using experimental data that intentionally included outliers. As a result of twin experiments, it was confirmed that the nuclear data were adjusted robustly and appropriately even with the experimental data containing outliers.
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Takeda S, Kitada T. Bayesian Estimation of Cross-Section, Experimental Error, and Calculation Error: Comparison with Bias Factor Method. NUCL SCI ENG 2022. [DOI: 10.1080/00295639.2022.2123679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Satoshi Takeda
- Osaka University, Graduate School of Engineering, 2-1 Yamadaoka, Suita-shi, Osaka, Japan
| | - Takanori Kitada
- Osaka University, Graduate School of Engineering, 2-1 Yamadaoka, Suita-shi, Osaka, Japan
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Bayesian estimation for covariance between cross-section and errors of experiment and calculation. ANN NUCL ENERGY 2021. [DOI: 10.1016/j.anucene.2021.108589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Takeda S, Shibano R, Kitada T. Cross-section adjustment method based on Bayesian theory for specific cross-section set. J NUCL SCI TECHNOL 2021. [DOI: 10.1080/00223131.2021.1899995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Satoshi Takeda
- Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, Suita-shi, Osaka, Japan
| | - Ryosuke Shibano
- Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, Suita-shi, Osaka, Japan
| | - Takanori Kitada
- Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, Suita-shi, Osaka, Japan
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Takeda S, Kitada T. Individual Adjustment of Independent Cross-Section Set Based on Bayesian Theory. NUCL SCI ENG 2020. [DOI: 10.1080/00295639.2020.1833601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Satoshi Takeda
- Osaka University, Graduate School of Engineering, 2-1 Yamadaoka, Suita-shi, Osaka, Japan
| | - Takanori Kitada
- Osaka University, Graduate School of Engineering, 2-1 Yamadaoka, Suita-shi, Osaka, Japan
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Palmiotti G, Salvatores M. Revisiting the bias factor methodologies for the validation of fast test reactors. ANN NUCL ENERGY 2020. [DOI: 10.1016/j.anucene.2020.107591] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Wu Q, Peng X, Yu Y, Yao L, Li Q, Wang K. Nuclear cross-section adjustment based on the 2-D/1-D transport code KYADJ. ANN NUCL ENERGY 2020. [DOI: 10.1016/j.anucene.2019.107068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Makhloul M, Boukhal H, El Bardouni T, Chakir E, Kaddour M, El Ouahdani S, Mohammed M, Ahmed A. Adjustment of group cross sections by means of integral data (ENDF/-VII.1). PROGRESS IN NUCLEAR ENERGY 2020. [DOI: 10.1016/j.pnucene.2019.103088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yokoyama K, Kitada T. Generalized formulation of extended cross-section adjustment method based on minimum variance unbiased linear estimation. J NUCL SCI TECHNOL 2018. [DOI: 10.1080/00223131.2018.1531078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Kenji Yokoyama
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, Japan
| | - Takanori Kitada
- Graduate School of Engineering, Osaka University, Osaka, Japan
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Miwa S, Yamamoto Y, Chiba G. Research activities on nuclear reactor physics and thermal-hydraulics in Japan after Fukushima-Daiichi accident. J NUCL SCI TECHNOL 2017. [DOI: 10.1080/00223131.2017.1417177] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Shuichiro Miwa
- Division of Energy and Environmental Systems, Graduate School of Engineering, Hokkaido University, Sapporo, Japan
| | - Yasunori Yamamoto
- Division of Energy and Environmental Systems, Graduate School of Engineering, Hokkaido University, Sapporo, Japan
| | - Go Chiba
- Division of Energy and Environmental Systems, Graduate School of Engineering, Hokkaido University, Sapporo, Japan
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Yokoyama K, Yamamoto A, Kitada T. Dimension-reduced cross-section adjustment method based on minimum variance unbiased estimation. J NUCL SCI TECHNOL 2017. [DOI: 10.1080/00223131.2017.1397563] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Kenji Yokoyama
- Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Ibaraki, Japan
| | - Akio Yamamoto
- Department of Applied Energy, Graduate School of Engineering, Nagoya University, Nagoya, Japan
| | - Takanori Kitada
- Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, Osaka University, Osaka, Japan
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Cao L, Liu Y, Shen W, He Q. Development of a hybrid method to improve the sensitivity and uncertainty analysis for homogenized few-group cross sections. J NUCL SCI TECHNOL 2017. [DOI: 10.1080/00223131.2017.1315973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Liangzhi Cao
- School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Yong Liu
- School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - Wei Shen
- School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, China
- Canadian Nuclear Safety Commission K1P 5S9, Ottawa, Canada
| | - Qingming He
- School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, China
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Palmiotti G, Briggs JB, Kugo T, Trumble E(F, Kahler AC(S, Lancaster D. Applications of Integral Benchmark Data. NUCL SCI ENG 2017. [DOI: 10.13182/nse14-33] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Giuseppe Palmiotti
- Idaho National Laboratory, Nuclear Systems Design and Analysis Division P.O. Box 1625, MS 3860, Idaho Falls, Idaho 83415-3860
| | - J. Blair Briggs
- Idaho National Laboratory, Nuclear Systems Design and Analysis Division P.O. Box 1625, MS 3860, Idaho Falls, Idaho 83415-3860
| | - Teruhiko Kugo
- Japan Atomic Energy Agency, Nuclear Science and Engineering Directorate 2-4 Shirakata-Shirane, Tokai-mura, Naka-gun Ibaraki, 319-1195, Japan
| | | | - Albert C. (Skip) Kahler
- Los Alamos National Laboratory, Theoretical Division Building 200, Room 215, MS B214, Los Alamos, New Mexico 87545
| | - Dale Lancaster
- NuclearConsultants.com 320 South Corl Street, State College, Pennsylvania 16801
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Endo T, Yamamoto A, Watanabe T. Bias factor method using random sampling technique. J NUCL SCI TECHNOL 2016. [DOI: 10.1080/00223131.2015.1126541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Tomohiro Endo
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Aichi 464-8603, Japan
| | - Akio Yamamoto
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Aichi 464-8603, Japan
| | - Tomoaki Watanabe
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Aichi 464-8603, Japan
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Yokoyama K, Yamamoto A. Cross-section adjustment methods based on minimum variance unbiased estimation. J NUCL SCI TECHNOL 2016. [DOI: 10.1080/00223131.2016.1146637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Akio Yamamoto
- Graduate School of Engineering, Nagoya University, Aichi, Japan
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Tatsumi M, Chiba G. Recent activities in the field of reactor physics. J NUCL SCI TECHNOL 2014. [DOI: 10.1080/00223131.2014.909749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Watanabe T, Endo T, Yamamoto A, Kodama Y, Ohoka Y, Ushio T. Cross section adjustment method based on random sampling technique. J NUCL SCI TECHNOL 2014. [DOI: 10.1080/00223131.2014.882801] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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