摘要
测量了整体Ｘ光会聚透镜的性能．对于Ｍｏ—Ｋａ线，透镜焦斑直径（ＦＷＨＭ）为３０μｍ．与没有透镜仅使用光栏相比，功率密度增益优于２０００．与功率约为１Ｗ的细聚焦Ｍｏ靶Ｘ光管相配合用于微束Ｘ射线荧光（ＭＸＲＦ）分析时，中重元素（Ｃｒ，Ｆｅ）的最小探测极限达到０．５ｐｇ．
The performance of new monolithic X-ray focusing lens is measured.For Mo-Kaline,the focal spot diameter of the lens is 30um.Compared with an aperture without thelens,a power density gain of more than 2000 is achieved.For the medium and heavy elemets(Cr, Fe), the minimum detection limit of 0.5 is obtained with a 1W fine focusing Mo Xray tube.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
1999年第1期46-49,共4页
Journal of Beijing Normal University(Natural Science)
基金
教育部重点资助项目
