The RC4000 Series of radiation detection systems have been specifically designed to detect radioactive materials contained in a moving vehicle loaded with scrap material. The system design is modular, flexible and customizable, offering multiple detector configurations to meet site specific applications. The RC4000 incorporates only the highest quality of components and software/hardware technology available today. The detector assemblies provide an extremely high degree of detection capability for a wide range of radioactive elements commonly associated with scrap metal. The detectors utilize large plastic scintillation panels that are sensitive to Ionizing radiation.