X线成像经历了数十年的增感屏-胶片系统成像方式,1974年诞生第一块成像板(IP)后,CR技术成了X线成像新时期的代表,它把模拟影像信息转变为数字影像信息,实现了影像信息的数字化。其实质是IP经X线照射后,在成像层形成潜影,含有潜影的IP被激光束扫描后读出[1] ,经光电转换、模数转 X-ray imaging has undergone a sensitization screen-film system imaging for decades. After the first imaging plate (IP) was born in 1974, CR technology became the representative of the new era of X-ray imaging. It converted the analog image information into Digital video information, to achieve the digital image information. Its essence is the IP by the X-ray irradiation, the formation of latent image in the imaging layer, the IP of the latent image is read out by the laser beam scanning [1], the photoelectric conversion,