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Calculation and Justification of Biological Protection for Hot Cells with Reprocessed-99Mo Volume Enlargement at Karpov Research Institute of Physical Chemistry

Calculation and Justification of Biological Protection for Hot Cells with Reprocessed-99Mo Volume... Medical radionuclides irradiated in hot cells emanate from targets irradiated in a reactor. Limitations associated with the maximum dose rate do not allow more than eight targets to be processes simultaneously, which increases the processing time and reduces the number of targeted radionuclides produced. The possibilities of processing a larger number of targets in hot cells or shortening their hold-up time after irradiation in a WWR-Ts reactor are analyzed. A computational model of an irradiated target was formulated. The computational results for targets made it possible to enumerate and estimate the radiation level of the radionuclides making the main contribution in the gamma source. The dose rate was calculated for processing of eight and 10 targets with hold-up time 20 h and eight targets with 10 h hold-up. The calculations showed that the dose rate under the considered cases does not exceed the maximum admissible value. The calculations are compared with experiment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Atomic Energy Springer Journals

Calculation and Justification of Biological Protection for Hot Cells with Reprocessed-99Mo Volume Enlargement at Karpov Research Institute of Physical Chemistry

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References (5)

Publisher
Springer Journals
Copyright
Copyright © Springer Science+Business Media, LLC, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
1063-4258
eISSN
1573-8205
DOI
10.1007/s10512-023-00925-4
Publisher site
See Article on Publisher Site

Abstract

Medical radionuclides irradiated in hot cells emanate from targets irradiated in a reactor. Limitations associated with the maximum dose rate do not allow more than eight targets to be processes simultaneously, which increases the processing time and reduces the number of targeted radionuclides produced. The possibilities of processing a larger number of targets in hot cells or shortening their hold-up time after irradiation in a WWR-Ts reactor are analyzed. A computational model of an irradiated target was formulated. The computational results for targets made it possible to enumerate and estimate the radiation level of the radionuclides making the main contribution in the gamma source. The dose rate was calculated for processing of eight and 10 targets with hold-up time 20 h and eight targets with 10 h hold-up. The calculations showed that the dose rate under the considered cases does not exceed the maximum admissible value. The calculations are compared with experiment.

Journal

Atomic EnergySpringer Journals

Published: Jul 1, 2022

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