一种工业CT散射校正的新模型  

A method of scatter correction for industrial CT

作　　者：李立涛[1] 丛鹏[1] 

机构地区：[1]清华大学核能与新能源技术研究院,北京100084

出　　处：《核电子学与探测技术》2007年第1期27-29,74,共4页Nuclear Electronics & Detection Technology

基　　金：国家"十五"科技攻关项目(2002BA406B03)

摘　　要：建立了第三代CT扫描过程中理想的散射模型;针对60Co集装箱(大型客体)CT检测系统的特点,得到了简化模型;通过实验测得模型参数,并验证了基于这种简化模型的散射校正对匀质圆盘客体的图像重建效果。This paper establish an ideal scatter model of 3-generation CT; After simplification in ^60Co Cargo Inspection System, a realizable model is derived from the ideal model; Parameter curve is measured through experiments; at last, the simplified model is proved to be effective in scatter correction of homogeneous, round-shaped scanned object.

关 键 词：CT 散射校正 

分 类 号：TL811[核科学技术—核技术及应用]