WEKO3
アイテム
Effect of gamma-ray polarization in NRF-based nondestructive assay of nuclear materials
https://repo.qst.go.jp/records/54822
https://repo.qst.go.jp/records/54822b7821292-72f1-4c71-98ad-e94058fa5454
| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-01-10 | |||||
| タイトル | ||||||
| タイトル | Effect of gamma-ray polarization in NRF-based nondestructive assay of nuclear materials | |||||
| 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_5794 | |||||
| 資源タイプ | conference paper | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Omer, M.
× Omer, M.× 羽島, 良一× 静間, 俊行× 小泉, 光生× 羽島 良一× 静間 俊行 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Nuclear resonance fluorescence (NRF) is a process in which the electric and/or the magnetic dipole excitations of the nucleus take place. Since these excitations are unique signatures of each nucleus, the NRF provides a practical tool for a non-destructive detection and assay of nuclear materials. Using a polarized g-ray beam, distinguishing the nature of the excitation is straightforward. At a scattering angle of 90°, the electric dipole excitations are radiated normal to the polarization plane whereas the magnetic dipole excitations are radiated in the same plane as the incident beam polarization. By contrast, other g-ray interactions with the atom may exhibit different responses regarding the polarization of the incident beam. For example, the elastic scattering is expected to give approximately 60% lower yield in the direction of the incident beam polarization than the other direction. This fact significantly affects the sensitivity of the NRF technique because it is not possible to separate the NRF and the elastic scattering on the basis of the photon energy. We report the results of a photon scattering experiment on 238U using a 100% linearly polarized g-ray beam with an energy of 2.04 MeV. We demonstrate how the elastic scattering responds to the polarization of the incident beam. Accordingly, we are able to resolve the effects of the polarization of incident photon in an NRF measurement. | |||||
| 書誌情報 |
Proceedings of the 58th Institute of Nuclear materials Management annual meeting 巻 2017, 号 a314, p. 1-7, 発行日 2017-07 |
|||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.inmm.org/INMM/media/Archives/Annual%20Meeting%20Proceedings/2017/a314_1.pdf | |||||
| 関連名称 | https://www.inmm.org/INMM/media/Archives/Annual%20Meeting%20Proceedings/2017/a314_1.pdf | |||||
