Abstract
Abstract This paper is a continuation of research published earlier. It describes the characterization of sensors that generate images of extended area sources, scatter patterns from irradiated targets, and radiation sources through walls of concrete and lead. Images of the primary sources as well as the photon scatter-patterns from the targets or container walls were produced. The unique directional sensitivity of the sensors made it possible to locate a 137Cs point source that produced a radiation intensity of 13.4 μrad (Tissue)/h (about 10 photons/cm2-s) at the detector, immersed in a radiation field of 79.8 μrad (Tissue)/h from another cesium source. Radiation sources of 137Cs, 60Co, and 300 kV X-ray photons were used in the scattering and wall penetration experiments and 232Th foils in the extended area source measurements.
Published Version
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