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    • 2. 发明公开
    • IMAGING SYSTEM USING A STRAIGHT-LINE TRAJECTORY SCAN AND METHOD THEREOF
    • BILDGEBUNGSSYSTEM MIT LINEARER ABTASTUNG UND VERFAHRENDAFÜR
    • EP2273257A4
    • 2015-12-30
    • EP09733473
    • 2009-04-01
    • UNIV TSINGHUANUCTECH CO LTD
    • ZHANG LILIU YINONGCHEN ZHIQIANGLI YUANJINGGAO HEWEIXING YUXIANGZHAO ZIRANXIAO YONGSHUN
    • G01N23/04G01N23/08G01V5/00
    • G01V5/005G01B15/00G01V5/0016G03B42/00
    • A linear track scanning imaging system and method, the imaging system comprising: a ray generating unit comprising a plurality of ray sources, where the plurality of ray sources emit beams alternately and only one ray source emits a beam at a same time; an actuating means for causing an object under examination to perform a relative movement with respect to the linear track scanning system along a linear track, thereby leading the object under examination to pass through the scanning area of the linear track scanning imaging system; a data collecting unit which collects the projection data of the object under examination for each ray source respectively; an imaging unit which reconstructs an image of the object under examination based on the projection data collected for each ray source; and a display unit for displaying the reconstructed image. By adopting a plurality of ray sources arranged according to a certain spatial distribution and emitting beams alternately according to a certain time sequence, it is possible to achieve a larger scanning viewing angle with a shorter detector length, thereby reducing the number of the detector units required by the system and shortening the total scanning distance of the examined object.
    • 一种线性轨道扫描成像系统和方法,所述成像系统包括:射线产生单元,包括多个射线源,其中所述多个射线源交替地发射射束,并且仅一个射线源同时发射射束; 用于使被检查物体沿着线性轨道相对于线性轨道扫描系统进行相对移动的致动装置,从而引导检查对象通过线性轨道扫描成像系统的扫描区域; 数据收集单元,分别收集针对每个射线源的检查对象的投影数据; 成像单元,其基于针对每个射线源收集的投影数据来重建被检查物体的图像; 以及显示单元,用于显示重建图像。 通过采用根据一定的空间分布布置的多个光源和根据一定的时间顺序交替发射光束,可以实现具有更短的检测器长度的更大的扫描视角,从而减少所需的检测器单元的数量 通过系统缩短检查对象的总扫描距离。