线型像质计线径检测方法的研究

摘要

Image Quality Indicators(IQI)is a radiographic sensitivity testing device in the industrial X-ray photos. IT is im⁃portant parameters for IQI that is wire diameter. The wire diameter accuracy directly affects the sensitivity of industrial X-ray machines. Accordingly,it is necessarily for wire diameter to make an accurate detection. In this paper,the author gives two methods to measure wire diameter by analyzing.%像质计是测检测工业射线照片的射线照相灵敏度的标准器件，像质计线径是像质计的重要几何参数，线径值的准确度直接影响工业射线光机灵敏度。因此需要对像质计线径做出准确检测，通过分析给出2种像质计线径的检测方法。