X射线作用于多丝靶的成象原理及实现方法  

IMAGE PRINCIPLES AND ACCOMPLISHMENT WHEN XRAY DO WITH MULTISILK TARGET

作　　者：何小海 吴小强 陶德元 

出　　处：《四川大学学报（自然科学版）》1997年第6期779-782,共4页Journal of Sichuan University(Natural Science Edition)

摘　　要：通过物体的Ｘ射线，将在多丝靶上激发电荷．电荷沿上下、左右传输的时间差代表其位置．统计各位置点出现的频率以反映射线的穿透情况，从而形成Ｘ射线图象．该方法延长了摄像头寿命。Xray　that　penetrates　through　an　object　evokes　charges　on　the　threadnet　target.The　time　difference Caused by the charges　transfering　along　x　and　y axes contains location information. Computing the frequence of the Xray falling on each point of the target. Authors can get a digital image. Experimental results showed that the new method is very effective, which can not only lergthen the lifetime of the camera, but also increase the resolution of an image.

关 键 词：X射线 多丝靶 A/D变换 图象处理 成象原理 

分 类 号：TN919.8[电子电信—通信与信息系统]