利用X射线双能量进行物质属性的判别，是机场、车站行李安全检查的一项基本技术。
The research is carried out to distinguish the different materials using dual energy X ray technology.
但由于热中子与材料作用的机制和X射线与材料作用的机制不同，用户对热中子照相检测过程中中子对材料属性的影响存有疑虑。
As the different interaction mechanism with material from X-ray, neutrons are thought to affect the material properties during the course of testing.
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