Research on rapid localization of radiation sources based on single detector

Based on the inverse square relationship between nuclear radiation intensity and distance from a radioactive source, this study explores the feasibility of using a single detector to calculate and quickly locate the location of the radioactive source based on its travel path position and counting rate, facilitating the source finding operation of lightweight unmanned aerial vehicles and robots; In order to reduce the influence of background and other radioactive substances, a simple and convenient pulse width spectrum is used to obtained the photoelectric peak count of the target radiation source.