摘要
一台采用俄国式四组合磁四极透镜组成的长焦距扫描质子微探针具有良好的离子光学特性,它能在微区内同时进行PIXE、RBS、RFS、NRA和沟道效应等方面的应用研究。它的聚焦和二维扫描都由一台IBM-PC微机操纵。同时,一台基于Apple Ⅰ e微机的扫描图象监示仪能够方便地为寻找扫描区域提供实时图象监督。本系统采用快速随机事件的扫描方式和全定量扫描分析(TQSA)数据获取和处理方式。立体等高线等三种显示元素含量二维分布的作图法也是本系统的一个特点。
A new scanning proton microprobe equipped with a long focus Russian magnetic quadruplet is set up. With excellent performances of ion optics, it can be used to do experiments of PIXE, RES, RFS, NRA and channelling simultaneously within a micron-region. The power supplies for quadruplet and scanning coils are controlled by an IBM-PC computer and a scanning graphical monitor based on an Apple Ⅱe microcomputer provides convenience of searching for an interesting area to scan. The advanced modes of the fast random scan and the event-by-event data collection make it possible to treat the multi-parameter and multi-detector data by means of the strategy of TQSA (Total quantitative scanning analysis) There are three types of graphical display including the innovation of three dimensional contour mapping.
出处
《核技术》
CAS
CSCD
北大核心
1991年第9期525-531,共7页
Nuclear Techniques
关键词
扫描
质子微探针
透镜
Scanning proton microprobe Quadruplet Scanning graphical monitor Fast random scan Total quantitative scanning analysis Three dimensional contour mapping
