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Some characteristics of X-ray imaging for energy region of over 100 keV using plastic scintillation fiber array

ADVANCED NUCLEAR INSTRUMENTATION AND DETECTION

Some characteristics of X-ray imaging for energy region of over 100 keV using plastic scintillation fiber array

TANG Shibiao，
MA Qingli，
YIN Zejie，
HUANG Huan
Nuclear Science and TechniquesVol.18, No.3pp.172-175Published in print 20 Jun 2007
DOI：10.1016/S1001-8042(07)60041-4
CLC：TN25,O571.33
44100

In this work, characteristics of using PSFs (plastic scintillation fibers) coupled with CCD (charge-coupled devices ) to build area detectors for high energy X-ray imaging are studied with a Monte Carlo simulation, which cover an energy range of a few hundred keV to about 20 MeV. It was found that the efficiency of PSF in detecting X-ray with energy above a few hundred keV is low. We can use large incident flux to increase the output signal to noise ratio (SNR). The performance can also be improved by coating PSF with X-ray absorption layers and the MTF of the system is presented. By optimizing the absorption layer thickness, the crosstalk of the area detector built with PSF decreases.

Plastic scintillating fiber (PSF)X-ray imagingGeant4Signal to noise ratio (SNR)Cross talk
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