Semi-empirical approach for performance evaluation of radionuclide identifiers

Under the Coordinated Research Project M22.007, Development and implementation of instruments and methods for detection of unauthorized acts involving nuclear and other radioactive material, the IAEA, in cooperation with U.S. National laboratories established an evaluation campaign to assess the performance of radiation detection equipment for nuclear security applications. The study targets instruments featuring radionuclide identification: spectrometric portal monitors, radionuclide identifiers, spectrometric portable radiation scanners, etc. The evaluation takes a semi-empirical approach, utilizing the instruments' replay and re-evaluation capabilities, also known as injection studies.