摘要
北京同步辐射装置微束X射线荧光实验站位于4W1A白光束线末端,主要仪器设备包括:束流强度监测用电离室系统、狭缝及激光对准光路系统、多维精密样品移动台及其步进马达驱动系统、体视显微镜及电视观测系统、Si(Li)能量色散谱仪系统等。
The synchrotron radiation (SR)microprobe XRF experimental station of Beijing Synchrotron Radiation Facility (BSRF)is located at the end of the 4W1A white SR beam line。The major instruments of the station are: ion chamber system for beam intensity monitor; slits and laser collimation system;multidimensional sample stage andits stepping motor driviing system; tele-microscope and video viewing system; Si(Li)energy dispersive spectrometer.The equipment has very high sensitivity (absoluteMDL, 10-10- 10-13g,relative MDL:N×μg/g-N×0.1μg/g,and relative MDL fortotal reflection XRF is 1- 5ng/g),good spatial resolution (50μm for thick sample,200μm for Bio -tissue). A lot of researches were performed on Geo -Science,Bio-Science,Material Science and so on.,
出处
《高能物理与核物理》
CSCD
北大核心
1997年第5期475-480,共6页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金
关键词
X射线荧光分析
微区分析
同步辐射
X一Ray fluorescence analysis,microprobe analysis,synchrotron radia-tion,trace analysis.