Abstract
Experiments on high-temperature reprocessing of VVER-1000 SNF with a burnout depth of 47 GW day/t U were carried out in order to determine the dependence of the extent of semi-volatile fission product removal on the time of SNF reprocessing in an oxidizing atmosphere for subsequent optimization of operating modes of this process. It was found that, during high-temperature reprocessing at 1200°С for 8 h, more than 30% of Mo, 90% of Cs, and 100% of Ru and Tc are removed.
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ACKNOWLEDGMENTS
We express our gratitude to Dr. A.S. Aloy (Khlopin Radium Institute) for initialization work on high-temperature reprocessing of spent nuclear fuel, discussing the experimental results and hel** in their interpretation.
Funding
The results of the work were obtained within the framework of work under Agreement no. 774/157-D dated December 3, 2020 between the Private Institution “Science and Innovation” and Khlopin Radium Institute and Agreement no. 313/2688-D dated November 3, 2022 between JSC “Science and Innovation” and Khlopin Radium Institute. In this regard, the copyright holders of the results of intellectual activity are the Private Institution “Science and Innovation” and JSC “Science and Innovation”.
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Skrigan, I.N., Metalidi, M.M., Ismailov, R.V. et al. Effect of High-temperature VVER-1000 SNF Reprocessing Time on the Extent of Fission Product Removal. Radiochemistry 66, 156–162 (2024). https://doi.org/10.1134/S1066362224020048
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DOI: https://doi.org/10.1134/S1066362224020048