| タイトル | Criticality and doppler reactivity worth uncertainty due to resolved resonance parameter errors; Formula for sensitivity analysis |
| その他のタイトル | 分離共鳴パラメータの誤差が臨界性とドップラー反応度に及ぼす不確かさ; 感度解析用計算式の導出 |
| DOI | 10.11484/jaeri-research-2004-026 |
| 本文（外部サイト） | http://jolissrch-inter.tokai-sc.jaea.go.jp/pdfdata/JAERI-Research-2004-026.pdf |
| 参考URL | http://jolissrch-inter.tokai-sc.jaea.go.jp/search/servlet/search?30057 |
| 著者（日） | 瑞慶覧 篤; 中川 庸雄; 柴田 恵一; 石川 眞; 日野 哲士 |
| 発行日 | 2005-02 |
| 発行機関など | JAEA |
| 刊行物名 | JAERI-Research 2004-026 |
| 開始ページ | 1 |
| 終了ページ | 102 |
| 刊行年月日 | 2005-02 |
| 言語 | en |
| 内容記述 | Reactivity uncertainties such as effective multiplication factor can be estimated by the sensitivity coefficients of the infinitely diluted cross section and resonance self-shielding factor to the changes of resonance parameters of interest. In the present work, the uncertainties of the resolved resonance parameters for the evaluated nuclear data file JENDL-3.2 were estimated on the basis of Breit-Wigner Multi-level formula. The resonance self-shielding factor based on NR-approximation is analytically described. Reactivity uncertainty evaluation method for the effective multiplication factor keff, temperature coefficient alpha, and Doppler reactivity worth rho is developed by means of the sensitivity coefficient against the resonance parameter. Final uncertainties are estimated by means of error propagation law using the level-wise uncertainties. Preliminary uncertainty of Doppler reactivity worth results about 4% at the temperature 728 K for large sodium-cooled FBR.
著者所属: 日本原子力研究開発機構(JAEA) |
| 資料種別 | Technical Report |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/617236 |
