Radioactive source positioning equipment and method

According to the radioactive source positioning equipment, based on the fact that gamma rays are absorbed by substances and follow the negative exponential decay law, scintillation crystals of two scintillator detectors are vertically and oppositely arranged, and the scintillation crystals and the scintillator detectors are close in position, so that the counting rates of the scintillation crystals and the scintillator detectors are approximately equal when no shielding body exists; a special-shaped lead shielding body is sleeved outside one scintillation crystal, so that the equivalent thicknesses of the lead shielding body for shielding radioactive sources with different incident angles are different; calculating the thickness value of the lead shielding body in the radial direction of the scintillation crystal in the direction of the radioactive source, and determining the direction of the radioactive source according to the thickness value; the radioactive source positioning equipment can obtain the accur