Image quality evaluation of linear plastic scintillating fiber array detector for X-ray imaging

Image quality evaluation of linear plastic scintillating fiber array detector for X-ray imaging 1 first-author 1 1 Department of Modern Physics, University of Science and Technology of China, Hefei 230026 Department of Modern Physics, University of Science and Technology of China, Hefei 230026 It is important to assess image quality, in order to ensure that the imaging system is performing optimally and also identify the weak points in an imaging system. Three parameters mostly leading to image degradation are contrast, spatial resolution and noise. There is always a trade-off between spatial resolution and signal to noise ratio, but in scintillating fiber array detectors spatial resolution is not as important as signal to noise ratio, so we paid more attention to contrast and SNR of the system. By using GEANT4 Monte Carlo detector simulation toolkit, some effective parameters of the linear plastic scintillating fiber (PSF) array as an imaging detector were investigated. Finally we show that it is possible to use this kind of detector to take CT and DR (Digital Radiography) image under certain conditions. Scintillating fiber Detector quantum efficiency Modulation transfer function Image quality GEANT4 References Shao H , Miller D W , Pearsall C R . Nucl Instr Meth Phys Res , 1990 , A299 : 528 - 533 Nucl Instr Meth Phys Res Ikhlef A , Skowronek M . IEEE Trans Nucl Sci , 1994 , 41 ( 2 ): 408 - 414 IEEE Trans Nucl Sci Ikhlef A , Skowronek M . App Optics , 1998 , 37 ( 34 ): 8081 - 8084 App Optics TN25,O571.33 2004-02-09 2004-12-01 2021-01-19 2004 Nuclear Science and Techniques 06 15