ZnO nanowires in polycarbonate membrane as a high resolution X-ray detector (a Geant4 simulation)

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• 作者：Ali Taheri ; ^{at1361@aut.ac.ir} ; Shahyar Saramad ; Saeed Setayeshi
• 关键词：Zinc oxide ; Nanowire ; Scintillation ; Polycarbonate membrane ; X-ray imager ; Spatial resolution
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2013
• 出版时间：11 July, 2013
• 年：2013
• 卷：716
• 期：Complete
• 页码：15-22
• 全文大小：1702 K

文摘

The capability of polycarbonate cladded ZnO nanowires as scintillating optical fibers, in the presence of the 10 keV X-ray is simulated using the Geant4 Monte Carlo simulation code. The simulated results show that using millions of scintillating fibers in a 1 mm² area, which are packed together in a polycarbonate membrane, have additional light guiding role that reduces the scattering of the X-ray generated optical photons inside the detector. This new low-cost technique can provide a higher spatial resolution X-ray imager with sharper edges at the object boundaries in comparison to a single crystal scintillating macro detectors.