Observation of Eu Adsorption Band in the CMPO/SiO2–P Column by Neutron Resonance Absorption Imaging

JPS Conf. Proc. 33, 011073 (2021) [7 pages]

Proceedings of the 3rd J-PARC Symposium (J-PARC2019)

Observation of Eu Adsorption Band in the CMPO/SiO₂–P Column by Neutron Resonance Absorption Imaging

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Yasunori Miyazaki¹^,*, Sou Watanabe¹, Masahiro Nakamura¹, Atsuhiro Shibata¹, Kazunori Nomura¹, Tetsuya Kai², and Joseph D. Parker³

¹Nuclear Fuel Engineering Laboratories, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1194, Japan

²J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

³Comprehensive Research Organization for Science and Society, Tokai, Ibaraki 319-1106, Japan

Received July 31, 2020

Neutron resonance absorption imaging was adapted to observe a Eu band adsorbed on a CMPO/SiO₂–P column sample for minor actinide recovery by extraction chromatography. Several wet samples were prepared with either light water or heavy water and compared to the dry sample to determine neutron transmission. The neutron transmission spectra showed that 45% of neutrons were transmitted through the dry sample, while 20% and 42% of neutrons were transmitted through the wet samples of HNO₃ and DNO₃, respectively. In this study, it was confirmed that the resonance absorption imaging has great potential for the direct observation of the Eu band migration.

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https://doi.org/10.7566/JPSCP.33.011073

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