Comparison of single-photon counting and charge-integrating detectors for X-ray high-resolution imaging of small biological objects
✍ Scribed by Paola Maria Frallicciardi; Jan Jakubek; Daniel Vavrik; Jiri Dammer
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 208 KB
- Volume
- 607
- Category
- Article
- ISSN
- 0168-9002
No coin nor oath required. For personal study only.
✦ Synopsis
This work presents a direct comparison of two pixel detectors: a charge-integrating flat panel imager coupled to a CsI:Tl scintillator and a hybrid silicon detector of Medipix2 type, working in a singlephoton counting mode. The comparison concerns image quality in terms of system-spatial resolution, signal-to-noise ratio and contrast in imaging of small biological objects. It will be shown that, at photon energies below 40 keV and for low attenuating biological objects, single-photon counting detectors are more appropriate for small-animal imaging than flat panel devices right due to better spatial resolution, signal-to-noise ratio and contrast.