Pocket Alpha Radiation Detectors Home /APPLICATIONS/Homeland Security and Defense/Handheld and Portable Radionuclide.../Pocket Alpha Radiation Detectors AТ2522 Radiation Detector (Alpha SENSOR) Quick assessment of surface contamination by alpha emitting radionuclides, in particular by polonium-210. Easy-to-operate detector can be used by personnel with minimal training. VIEW PRODUCT