Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2000 · 16 citations · 0 references
EngineeringMaterials EngineeringMaterials ScienceElectronic MaterialsRadiation DetectionSensorsDetector TechnologyImage SensorsRadiation DetectorsRadiation Imaging DetectorsX-ray DetectionX-ray DetectorsDetector Array DesignHigh-resolution X-ray DetectorsHigh-resolution X-ray ImagingPixelated Detector ArraysX-ray Detector ArraysX-ray Imaging Physics
Measurements of polycrystalline HgI<SUB>2</SUB> films on active matrix direct detection image sensors are described, for possible application to high sensitivity room temperature x- ray detection. The arrays exhibit low leakage current and very high sensitivity - roughly an order of magnitude better than has been demonstrated with other designs. The uniformity of the response varies randomly from pixel to pixel, for reasons that are not yet understood, but are probably related to the large grain size.