Taheri-Saramad x-ray detector (TSXD): A novel high spatial resolution x-ray imager based on ZnO nano scintillator wires in polycarbonate membrane

Journal Article · Wed Jan 15 00:00:00 EST 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4862468· OSTI ID:22251090

Saramad, S.; Ghalenoei, S.; Setayeshi, S. ^[1]

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1. Department of Energy Engineering and Physics, Amirkabir University of Technology, Tehran 15875-4413 (Iran, Islamic Republic of)

A novel x-ray imager based on ZnO nanowires is designed and fabricated. The proposed architecture is based on scintillation properties of ZnO nanostructures in a polycarbonate track-etched membrane. Because of higher refractive index of ZnO nanowire compared to the membrane, the nanowire acts as an optical fiber that prevents the generated optical photons to spread inside the detector. This effect improves the spatial resolution of the imager. The detection quantum efficiency and spatial resolution of the fabricated imager are 11% and <6.8 μm, respectively.

• OSTI ID: 22251090
• Journal Information: Review of Scientific Instruments, Vol. 85, Issue 1; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
IMAGES
OPTICAL FIBERS
PARTICLE TRACKS
POLYCARBONATES
QUANTUM EFFICIENCY
QUANTUM WIRES
REFRACTIVE INDEX
SCINTILLATIONS
SPATIAL RESOLUTION
WIRES
X-RAY DETECTION
X-RAY SPECTROMETERS
ZINC OXIDES