Neutron resonance absorption imaging of simulated high-level radioactive waste in borosilicate glass
Abstract We performed a preliminary study of neutron resonance absorption imaging to investigate the spatial distribution of constituent elements in borosilicate glasses containing simulated high-level radioactive waste, in which elemental inhomogeneities affect the physical and chemical stabilities...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-06-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-37157-2 |
| _version_ | 1797795715465871360 |
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| author | Y. Oba R. Motokawa K. Kaneko T. Nagai Y. Tsuchikawa T. Shinohara J. D. Parker Y. Okamoto |
| author_facet | Y. Oba R. Motokawa K. Kaneko T. Nagai Y. Tsuchikawa T. Shinohara J. D. Parker Y. Okamoto |
| author_sort | Y. Oba |
| collection | DOAJ |
| description | Abstract We performed a preliminary study of neutron resonance absorption imaging to investigate the spatial distribution of constituent elements in borosilicate glasses containing simulated high-level radioactive waste, in which elemental inhomogeneities affect the physical and chemical stabilities of the glass. Dips generated by the resonance absorptions of Rh, Pd, Na, Gd, Cs, and Sm were observed in the neutron transmission spectra of the glass samples. The spatial distributions of these elements were obtained from the neutron transmission images at the resonance energies. The distributions of Rh and Pd visualized the sedimentation of these platinum group elements. In contrast, the lanthanides (Gd and Sm) and Cs were uniformly dispersed. These results show that neutron resonance absorption imaging is a promising tool for characterizing borosilicate glasses and investigating the vitrification mechanism of high-level radioactive waste. |
| first_indexed | 2024-03-13T03:22:13Z |
| format | Article |
| id | doaj.art-74a2b0286d6342c7be74a6f358ded869 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-13T03:22:13Z |
| publishDate | 2023-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-74a2b0286d6342c7be74a6f358ded8692023-06-25T11:16:33ZengNature PortfolioScientific Reports2045-23222023-06-011311810.1038/s41598-023-37157-2Neutron resonance absorption imaging of simulated high-level radioactive waste in borosilicate glassY. Oba0R. Motokawa1K. Kaneko2T. Nagai3Y. Tsuchikawa4T. Shinohara5J. D. Parker6Y. Okamoto7Materials Sciences Research Center, Japan Atomic Energy AgencyMaterials Sciences Research Center, Japan Atomic Energy AgencyMaterials Sciences Research Center, Japan Atomic Energy AgencyTRP Decommissioning Center, Japan Atomic Energy AgencyJ-PARC Center, Japan Atomic Energy AgencyJ-PARC Center, Japan Atomic Energy AgencyNeutron R&D Division, Comprehensive Research Organization for Science and Society (CROSS)Materials Sciences Research Center, Japan Atomic Energy AgencyAbstract We performed a preliminary study of neutron resonance absorption imaging to investigate the spatial distribution of constituent elements in borosilicate glasses containing simulated high-level radioactive waste, in which elemental inhomogeneities affect the physical and chemical stabilities of the glass. Dips generated by the resonance absorptions of Rh, Pd, Na, Gd, Cs, and Sm were observed in the neutron transmission spectra of the glass samples. The spatial distributions of these elements were obtained from the neutron transmission images at the resonance energies. The distributions of Rh and Pd visualized the sedimentation of these platinum group elements. In contrast, the lanthanides (Gd and Sm) and Cs were uniformly dispersed. These results show that neutron resonance absorption imaging is a promising tool for characterizing borosilicate glasses and investigating the vitrification mechanism of high-level radioactive waste.https://doi.org/10.1038/s41598-023-37157-2 |
| spellingShingle | Y. Oba R. Motokawa K. Kaneko T. Nagai Y. Tsuchikawa T. Shinohara J. D. Parker Y. Okamoto Neutron resonance absorption imaging of simulated high-level radioactive waste in borosilicate glass Scientific Reports |
| title | Neutron resonance absorption imaging of simulated high-level radioactive waste in borosilicate glass |
| title_full | Neutron resonance absorption imaging of simulated high-level radioactive waste in borosilicate glass |
| title_fullStr | Neutron resonance absorption imaging of simulated high-level radioactive waste in borosilicate glass |
| title_full_unstemmed | Neutron resonance absorption imaging of simulated high-level radioactive waste in borosilicate glass |
| title_short | Neutron resonance absorption imaging of simulated high-level radioactive waste in borosilicate glass |
| title_sort | neutron resonance absorption imaging of simulated high level radioactive waste in borosilicate glass |
| url | https://doi.org/10.1038/s41598-023-37157-2 |
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