The IAEA's TECDOC-1162 report provides a reference procedure for radioactive emergency response and assessment of cargo. The first step recommended by the procedure is to use γ monitoring to determine whether there is an abnormal radiation level, which is the procedure for discovering suspicious radioactive cargo packages; then use portable equipment to perform γ, neutron, surface contamination, and nuclide identification tests on suspicious cargo packages, which is the analysis of suspicious cargo packages; finally, according to the test results, handle and dispose of them in accordance with the emergency plan, which is the handling of suspicious cargo packages. This has formed our company's overall solution for the safety detection of radioactive materials.