The Research of the Performance of the Detector Materials in the CT System Based on MCNP

The detector is one of the important devicese of the imaging system,the relationship between the detector's performance and the imaging system's indices is tightness. So the calculation of the detector materials's performance is an importan work in imaging system design. This paper simulats the performances(detection efficiency,energy deposition,effective deposition factor) of three kinds of detector materials,which is a basic work to design the high quality imaging system.