Abstract：The application of detective quantum efficient in calibration of digital radiography is described.Detective quantum efficient gives an indication of the system effectiveness in detecting X-ray beam and faithfully reproducing medical image by the flat panel detector,so the measurement of the detective quantum efficiency has been a link between X-ray beam and image reproduced by the flat panel detector.The experiment result has proved that some important performance about the flat panel detector of digital radiography can be found by the measurement of the detective quantum efficiency.
鲁向,张军毅. 量子检测效率在数字化X射线摄影系统检定中的应用[J]. 计量学报, 2011, 32(z1): 41-44.
LU Xiang,ZHANG Jun-yi. The Application of Detective Quantum Efficient in Calibration of Digital Radiography. Acta Metrologica Sinica, 2011, 32(z1): 41-44.
［1］IEC 62220-1,Medical electrical equipment-Characteristics of digital X-ray imaging devices-Part 1:Determination of the detective quantum efficiency［S］. 2003.
［2］Samei E,et al.A method for measuring the presampled MTF of digital radiographic systems using an edge test device［J］. Med Phys, 1998, 25(1):102-113.
［3］Samei E,et al. DQE of direct and indirect digital radiographic systems［C］.Medical Imaging 2001: Physics of Medical Imaging. Proceedings of SPIE, 2001, 189-197.
［4］Samei E,et al .Intercomparison of methods for image quality characterization.I.modulation transfer function［J］. Med Phys, 2006, 33(5): 1454-1465.
2011, Vol. 32 
