Design and fabrication of radiation detectors for high resolution imaging

• Fateme Esfandi (School of Particles and Accelerators, IPM)

The novel idea of using scintillator nanowires in polycarbonate membrane as a high spatial resolution X-ray imager was proposed by our group at Amirkabir University of Technology. In this work, a new generation of these imagers based on Anodized Aluminum Oxide (AAO) nano porous template is characterized. This characterization consist of simulation, radiation test of the detector by soft X-ray and analyzing the experimental spectrums for extracting the detection properties of Zinc Oxide nanowires. The results show that for 10 keV X-ray photons, by considering the light guiding properties of zinc oxide inside the AAO template and suitable selection of detector thickness and pore diameter, the spatial resolution less than one micrometer and the detector detection efficiency of 66% are accessible. This novel nano scintillator detector can have many advantages for medical applications in the future.