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
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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