Fast neutron coincidence counter using scintillators for safeguards verification of the TRU/RE waste

To minimize the environmental burden of the disposal of spent nuclear fuel, nuclide management process is one of good candidates to separate and collect major nuclides in the spent nuclear fuel. After high heat load nuclides, high mobile nuclides, and long-lived nuclides are separated, collected, an...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2023-12, Vol.332 (12), p.5283-5288
Main Authors: Lee, Chaehun, Yoon, Seonkwang, Ahn, Seong-Kyu, Seo, Hee
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Coincidence circuits
Detectors
Diagnostic Radiology
Fast neutrons
Hadrons
Heavy Ions
Inorganic Chemistry
Mathematical analysis
Nuclear Chemistry
Nuclear energy
Nuclear fuel cycle
Nuclear industry
Nuclear Physics
Nuclides
Performance evaluation
Physical Chemistry
Plutonium
Scintillation
Scintillation counters
Spent nuclear fuels
Spent reactor fuels
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Summary:To minimize the environmental burden of the disposal of spent nuclear fuel, nuclide management process is one of good candidates to separate and collect major nuclides in the spent nuclear fuel. After high heat load nuclides, high mobile nuclides, and long-lived nuclides are separated, collected, and fabricated as the waste form for the disposal. From safeguards perspective, nuclear material of the TRU/RE waste form should be verified. The amount of Plutonium can be estimated by Cm/Pu ratio using burnup code calculations and Cm-244 measurement. In this study, a fast neutron coincidence counter for Cm-244 neutron measurement of the TRU/RE waste form was designed with EJ-276 plastic scintillation detectors using PTRAC of MCNP6.2. The preliminary experimental performance evaluation using one EJ-276 plastic scintillation detector was conducted. And total and coincidence counting efficiency using a Cf-252 neutron source was calculated with respect to the number of detectors.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-023-09084-z