X-ray imaging and detection using plastic scintillating fibers

This paper discusses the application of plastic scintillating fiber array i n X-ray imaging with low-energy radiation. This array is coupled to a multi channel intensified photocathode and then to a CCD detector via a fiber opt ics taper. The length of the fiber array is experimentally optimized for th e radiation used. We found here that the length of the fibers (interaction medium) does not contribute too much in the degradation of the spatial reso lution under 10 keV irradiation along the axis of the fiber array. Modulati on Transfer Function (MTF) measurements of the PSF array are compared to th e optics MTF of the imaging system (without the sample) and that cross-talk in the fiber array is found to be negligible for a fiber array thickness o f 20 mm. (C) 2000 Elsevier Science B.V. All rights reserved.