Vehicle-mounted method and system for measuring radiation direction source and distance

The invention relates to a vehicle-mounted method for measuring a radiation direction source and a distance. The method comprises the following steps: 1) taking a GM counting tube as a basic detection unit for radiation dose rate detection; and 2) specifically arranging the basic detection units to form a measurement system for measuring radiation level data in multiple directions (left, right, lower and front) at one time. According to the vehicle-mounted method and system for measuring the radiation direction source and distance, the vehicle-mounted multidirectional radiation detector with the protective shielding function is in butt joint with geographic position information, radiation level data and position information are combined for marking, later emergency rescue and disposal work are facilitated, radiation monitoring data are recorded, radiation hotspots are selected, and the radiation source and distance are measured in real time. And the direction and the distance of the radioactive source/radioac