背散射成像系统中的一关键部位为跳点扫描转筒装置。国外的设备中采用的是其线扫描专利方式,我们采用自己的专利技术,设计加工完成跳点扫描转筒装置(图1)。采用转动轴与点扫描方向平行的转筒式点扫描产生器,即在1个可选装的转筒上设置一定规则排列的孔径,利用转筒旋转时穿过孔径的射线束可产生来回跳跃扫描的笔形射束,从而达到扫描成像的目的。 A key part of the backscatter imaging system is the point-sweep drum unit. Foreign equipment used in its line scan patented way, we use their own patented technology, design and processing of the completion of the point-scan scanning drum device (Figure 1). Rotary axis with point scanning parallel to the direction of the point-by-point scan generator, which is an optional drum set a regular arrangement of the aperture, the use of drum rotation through the aperture of the beam can be generated to jump back and forth Scanning pen beam, so as to achieve the purpose of scanning imaging.