Accurate Estimation of Subcriticality Using Indirect Bias Estimation Method(1)Theory
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- YAMAMOTO Toshihiro
- Department of Fuel Cycle Safety Research, Japan Atomic Energy Research Institute
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- SAKURAI Kiyoshi
- Department of Fuel Cycle Safety Research, Japan Atomic Energy Research Institute
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- ARAKAWA Takuya
- Department of Fuel Cycle Safety Research, Japan Atomic Energy Research Institute
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- NAITO Yoshitaka
- Department of Fuel Cycle Safety Research, Japan Atomic Energy Research Institute
書誌事項
- タイトル別名
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- Accurate Estimation of Subcriticality Using Indirect Bias Estimation Method, (I) Theory.
- Accurate Estimation of Subcriticality U
- Theory
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抄録
To estimate subcriticality of a system, a new method, Indirect Bias Estimation Method, is proposed. Instead of comparing a calculated keff with a "measured" one which cannot be measured directly, a bias in calculated keff is evaluated by direct comparison between measured and calculated quantities which are measureable in subcritical experiments. With these errors of measurable quantities, accuracy of a subcriticality calculation is indirectly derived. Three estimation methods based on the source multiplication method, the pulse neutron method, and the exponential experiment method are presented. For three experimental methods, neutron count rate distribution, prompt neutron decay constant, and spatial decay constant are compared between calculation and measurement, respectively, deriving biases in calculated keff's. With biases obtained by this procedures, namely Indirect Bias Estimation Method/, subcriticality of a system can be estimated more precisely than by "measured" keff's.
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 (5), 454-460, 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
- 1390001204094562304
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- NII論文ID
- 10002077110
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- NII書誌ID
- AA00703720
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- COI
- 1:CAS:528:DyaK2sXktFWltrk%3D
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- ISSN
- 18811248
- 00223131
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- NDL書誌ID
- 4219692
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可