微束X射线荧光分析谱仪及其对松针中元素的分布分析  

MICRO BEAM X-RAY FLUORESCENCE SPECTROMETER AND ITS APPLICATION TO THE DISTRIBUTION OF ELEMENTS OF PINE NEEDLES

作　　者：初学莲[1] 林晓燕[1] 程琳[1] 潘秋丽[1] 杨君[1] 丁训良[1] 

机构地区：[1]北京师范大学射线束技术与材料改性教育部重点实验室低能核物理研究所北京市辐射中心,北京100875

出　　处：《北京师范大学学报（自然科学版）》2007年第5期530-532,共3页Journal of Beijing Normal University(Natural Science)

摘　　要：介绍了一种小型的微束X射线荧光分析谱仪,它是由导管X光透镜和能量色散X射线荧光分析谱仪组成.谱仪具有较高的空间分辨率和能量分辨率.使用本谱仪对松树针叶进行了微区分析,得出各种元素沿松针长度方向和横切面径向的分布规律.结果表明使用X光透镜的微束X射线荧光分析方法可以实现植物样品的微区分析,有助于进一步了解植物的生长与元素迁移的关系.A compact micro beam X-ray fluorescence spectrometer, which consists of monolithic polycapillary X-ray focusing lens and energy dispersive X-ray spectrometer, is introduced. The spectrometer has both high spatial resolution and energy resolution. Microanalysis of pine needles is performed with the spectrometer, and the distributions of elements along length and transverse section are shown. It is concluded that the micro beam X-ray fluorescence spectrometer with X-ray lens can be used in the microanalysis of plant sample, which is helpful for understanding the relationship of growth and element translation.

关 键 词：微束XRF X光透镜 松针 元素分布 

分 类 号：TS943.74[轻工技术与工程—服装设计与工程]