2024/04/10 by Y.Y. Zhang, Zhang, Yanbiao, Fanjie Zeng +7
Medicine · Physics and Astronomy · #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Medical Imaging Techniques and Applications #Nuclear Experiment (nucl-ex) #Particle Detector Development and Performance #Radiation Detection and Scintillator Technologies
paper · pdf · doi:10.48550/arxiv.2404.06950
openalex publication_date 2024/04/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
Scintillation detectors are essential tools for radiation measurement, but calibrating them accurately can be challenging, especially when full-energy peaks are not prominent. This is common in detectors like plastic scintillators. Current methods for calibrating these detectors often require manual adjustments. To address this, we propose a new method called the convolution model. This model accurately calibrates the energy-channel relationship of the Compton edge in various detectors. We tested it with plastic scintillator BC408, NaI crystal, and LaBr3 crystal. Using 137Cs radioactive sources, we calibrated NaI and LaBr3 detectors using full-energy peaks, then applied the convolution model to fit the Compton edge. Our results show errors within 1% when compared to full-energy peak calibration.