Fissile Measurement in Waste Minimizing Fuel Process using Neutron
Resonance

Year
2023
Author(s)
YongDeok Lee - Korea Atomic Energy Research Institute
Seong-Kyu Ahn - Korean Atomic Energy Research Institute
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Abstract
Nuclear fissile material was measured at the waste produced in the waste minimizing fuel process, using neutron resonance technique. The waste has different material composition, shapes and characteristics at each stage in the process. Simulation was basically performed on U235 and Pu239 assay. The resonance energies were evaluated for uranium and plutonium for the hull waste and the linearity in detection response was examined by changing density for application of various type of wastes. The linear resonance energies were determined for content analysis of U235 and Pu239. From the simulation results, neutron resonance technique is promising to analyze U235 and Pu239 for waste material. Real time and non-destructive fissile assay plays an important role for large scale pyro-process. An accurate fissile assay will also contribute to an increased safeguards for the processing system in reuse of fissile materials.