Nuclide identification algorithm for Polyvinyl Toluene scintillation detector based on Deep Neural Network

Hiep Cao1, Tien Hung Dinh2, Kim Chien Dinh3, Thi Thoa Nguyen3, Dinh Khang Pham4, Xuan Hai Nguyen5
1 s:68:"Vietnam Military Institute of Chemical and Environmental Engineering";
2 1Military Institute of Chemical and Environmental Engineering
3 Military Institute of Chemical and Environmental Engineering
4 Hanoi University of Science and Technology
5 Dalat Nuclear Rerearch Institute

Main Article Content

Abstract

Radiation portal monitors (RPMs) are now stationed at strategic areas (airports, ports, etc.) to identify the illegal transportation of radioactive sources and nuclear items. RPMs are typically fitted with a PVT detector with a high recording efficiency. Radioisotope identification from the gamma spectrum acquired on this detector is normally not regarded due to the low resolution. This research describes an artificial neural network-based isotope identification algorithm that was applied to the gamma spectrum collected from the RPM's PVT detector. With excellent precision, this approach can detect one or a mixture of isotopes on the spectrum. The model still recognizes the training isotopes with >89 percent accuracy for spectra with the gain displacement in the range of 20 percent.

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References

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