Korhola O, Riihimäki E, Savikurki S
Radiology. 1987 Oct;165(1):257-9. doi: 10.1148/radiology.165.1.3628779.
A prototype device consisting of a focused array of several scanning collimator plates that produce multiple pencil beams has been constructed for radiographic imaging. Under normal imaging conditions, the scatter-to-primary ratio resulting from this device is less than 10%. High-contrast radiographs can be produced without increasing patient radiation dose.
一种由几个扫描准直器板的聚焦阵列组成的原型设备已被制造出来用于射线成像，该阵列可产生多个笔形束。在正常成像条件下，此设备产生的散射与原发射线之比小于10%。无需增加患者辐射剂量就能生成高对比度的射线照片。
