WEKO3
アイテム
Nuclear data uncertainty in iterative neutron spectrum unfolding
https://repo.qst.go.jp/records/2000397
https://repo.qst.go.jp/records/20003978d6467c7-0da2-419d-8b2c-205a215de51b
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-04-26 | |||||||
| タイトル | ||||||||
| タイトル | Nuclear data uncertainty in iterative neutron spectrum unfolding | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | journal article | |||||||
| 著者 |
Aoki Katsumi
× Aoki Katsumi
|
|||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | We developed an algorithm for propagating the uncertainty of dosimetry cross sections to that of the neutron spectrum obtained through multiple-foil activation and unfolding process. The algorithm derives the uncertainty of the solution spectrum as the standard deviation of a set of solution spectra obtained by unfolding with numerous sets of dosimetry cross sections, which are randomly generated from the evaluated cross sections and their covariances in a data library. We simulated a multiple-foil activation experiment in a C(d,n) neutron field by PHITS code for some dosimetry reactions to test the algorithm. The GRAVEL code analyzed production amounts to unfold neutron spectrum and then our new algorithm derived the uncertainties of the resultant neutron spectrum originated in the nuclear data uncertainty. Further, we found the uncertainty of the solution spectrum becomes smaller if we ignore the off-diagonal elements of the covariance matrices of the dosimetry cross sections. | |||||||
| 書誌情報 |
Journal of Nuclear Science and Technology 巻 59, 号 7, p. 907-914, 発行日 2022-02 |
|||||||
| 出版者 | ||||||||
| 出版者 | Taylor & Francis | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 1881-1248 | |||||||
| DOI | ||||||||
| 識別子タイプ | DOI | |||||||
| 関連識別子 | 10.1080/00223131.2021.2018370 | |||||||
