论文部分内容阅读
应用稀土元素萤光材料制造X线增感屏,以大幅度地提高X线胶片的感光增益,减少X线的曝射量,提高对人体深厚部位、活动脏器的摄片诊断效果,是国际上70年代才开始研究发展的一个新课题。我所和上海医疗器械电镀厂、静安区中心医院等单位组成的萤光材料研究小组,从1973年开始对上述课题进行了多方面的探讨。应用国产稀土元素材料,首先试制成功硫氧化钆(Gd_2O_2S:Tb)增感屏,配用感缘胶片,比过去使用的钨酸钙增感屏效果提高六倍以上。但由于生产感绿胶片成本高,价格昂贵,一时大量生产推广还有困
The application of rare earth element fluorescent material to create X-ray sensitive screen to significantly improve the X-ray film of the photosensitive gain, reduce the amount of X-ray exposure, improve the human body parts, active organs of the radiograph diagnosis is international On the 70s began to study the development of a new topic. I and the Shanghai Medical Device Plating Factory, Jing’an District Central Hospital and other units of fluorescent materials research group, from 1973 onwards the above topics were discussed in many ways. Application of domestic rare earth element materials, the first successful trial gadolinium oxysulfide (Gd_2O_2S: Tb) sensitization screen, with the sense of film, than the past use of calcium tungstate effect screen more than six times. However, due to the high cost of production of green film, expensive, sometimes mass production promotion is still sleepy