Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2004, Vol. 15 ›› Issue (6): 361

• ADVANCED NUCLEAR INSTRUMENTATION AND DETECTION • Previous Articles     Next Articles

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

Mohammad Mehdi NASSERI*, MA Qing-Li, YIN Ze-Jie   

  1. Department of Modern Physics, University of Science and Technology of China, Hefei 230026
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Mohammad Mehdi NASSERI, MA Qing-Li, YIN Ze-Jie. Image quality evaluation of linear plastic scintillating fiber array detector for X-ray imaging.Nuclear Science and Techniques, 2004, 15(6): 361

Abstract: 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.

Key words: Scintillating fiber, Detector quantum efficiency, Modulation transfer function, Image quality, GEANT4