Title :
First results observed with test X-CT system using GaAs radiation detector working in single photon counting regime
Author :
F. Dubecky;B. Zat´ko;I. Frollo;J. Juras;J. Pribil;J. Jakubek;J. Mudron
Author_Institution :
Institute of Electrical Engineering, Slovak Academy of Sciences, D?bravsk? cesta 9, SK-841 04 Bratislava, Slovakia. e-mail: elekfdub@savba.sk
Abstract :
The aim of present work is application of novel single photon counting system for detection of gamma-rays in CT using semiconductor radiation detector based on semi-insulating (SI) GaAs compound. A simple positioning test system consisting of two stepper motors with 241 Am gamma source of 60 keV photons and single SI GaAs radiation detector operated in single photon counting mode is used for taking CT projections. First, rather preliminary results of CT reconstruction applied to imaging of inner structure of a small phantom using developed reconstruction algorithms is demonstrated
Keywords :
"System testing","Gallium arsenide","Radiation detectors","Computed tomography","Semiconductor radiation detectors","Gamma ray detection","Gamma ray detectors","Silicon radiation detectors","Image reconstruction","Optical imaging"
Conference_Titel :
Advanced Semiconductor Devices and Microsystems, 2006. ASDAM ´06. International Conference on
Print_ISBN :
1-4244-0369-0
DOI :
10.1109/ASDAM.2006.331192
