Fig. 1. Typical scintillation detector structure

Fig. 2. Charge distribution of radiation events

Fig. 3. Hardware system schematic diagram

Fig. 4. Scintillation detector model

Fig. 5. SCDC schematic

Fig. 6. Experimental system diagram

Fig. 7. Positioning situation of the center of gravity method and the response function method when the radiation event occurs at different positions of the detector

Fig. 8. Fitting result of central pixel

Fig. 9. Comparison of results between response function method and center of gravity method

Fig. 10. FWHM comparison of the response function method and the center-of-gravity method of the scatter plot at the central pixel

Fig. 11. Comparison of FWHM between the response function method and the center of gravity method at the edge pixels