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在现有微焦点X光辐射成像系统的基础上 ,提出一种新的摆动式分层成像方法 ,对狭长形状薄层结构样品进行无损检测 ,建立计算机仿真模型 ,验证了使用不完全投影的合理性和高效率 ,讨论了不完全投影中投影区域的选择原则。实际成像结果表明 :分布在最佳投影区域的 1 2 0°投影可成功地分离出印制电路板不同层次的图像
Based on the existing micro-focus X-ray radiography system, a new swing-type layered imaging method is proposed. Non-destructive testing is carried out on thin-shaped thin-wall samples and a computer simulation model is established to verify the reasonable use of incomplete projection Sex and Efficient, the principle of choosing the projection area in incomplete projection is discussed. The actual imaging results show that the 120 ° projection distributed in the best projection area can successfully separate the images of different levels of the printed circuit board