曝光参数对X射线数字成像系统图像质量的影响

摘要

通过设计正交试验,分析了X射线数字成像(DR)系统中曝光参数对图像对比度和分辨率的影响,讨论了曝光参数对DR检测系统图像质量的影响,为该DR检测系统曝光曲线的制作提供了数据支持.结果表明,选择较低能量的X射线可以提高衰减系数,从而提高图像对比度.%In this paper,the influence of exposure parameters on image contrast and resolution is analyzed by orthogonal test.Furthermore,the influence of exposure parameters on the image quality of DR detection system is discussed,and data support is provided for the production of DR system exposure curve.The results show that the lower energy X-ray can improve the attenuation cofficient,thereby increasing the image contrast.