Title :
Simulation of Image Performance of CZT Detector for Digital Mammography
Author :
Alsager, Abdulaziz A. ; Spyrou, Nicholas M.
Author_Institution :
Univ. of Surrey, Guildford
Abstract :
Hybrid pixel detector arrays that convert X-ray photons directly into electrical signal are still at the developmental stage for application to digital mammography. In this work, image performance of cadmium zinc telluride detector for digital mammography was investigated by the aid of Monte Carlo simulation. In order to evaluate the proposed detection system, a simulation of X-ray photon transport in the sensor material was conducted using the extended version of the Monte Carlo N-Particle (MCNPX) code. Detection quantum efficiency of the system was calculated and a comparison with other clinically available systems is reported.
Keywords :
Monte Carlo methods; X-ray imaging; mammography; medical image processing; CZT detector; Monte Carlo N-particle code; Monte Carlo simulation; X-ray photon transport; cadmium zinc telluride detector; detection quantum efficiency; digital mammography; electrical signal; hybrid pixel detector arrays; image performance; Cadmium compounds; Image converters; Mammography; Optoelectronic and photonic sensors; Sensor arrays; Sensor systems; X-ray detection; X-ray detectors; X-ray imaging; Zinc compounds; CZT; Monte Carlo; detection quantum efficiency; modulation transfer function;
Conference_Titel :
EUROCON, 2007. The International Conference on "Computer as a Tool"
Conference_Location :
Warsaw
Print_ISBN :
978-1-4244-0813-9
Electronic_ISBN :
978-1-4244-0813-9
DOI :
10.1109/EURCON.2007.4400471
