4[2]Spahn M, et al. Digital radiography with a large - area, amorphous - silicon, flat- panel X - ray detector system. Invest Radiol, 2000, 35 (4):260-6.
5[3]Leblans P, et al. A new needle - crystalline computed radiography detector. J Digit Imaging, 2000, 13 (21) :117-120.
6[4]Zhao W, Rowlands JA. X- ray imaging using amorphous selenium: feasibility of a flat panel self - scanned detector for digital radiology. MedPhys, 1995, 22 (10) :1595-1604.
