NSRL光电子能谱站控制系统的改造  

Improvements on the control system of photoelectron spectroscopy station at NSRL

作　　者：刘衍芳[1] 潘海斌[1] 徐法强[1] 

机构地区：[1]中国科学技术大学国家同步辐射实验室,安徽合肥230029

出　　处：《中国科学技术大学学报》2007年第4期518-521,共4页JUSTC

基　　金：国家大科学工程(NSRL二期工程)资助

摘　　要：为了适应同步辐射应用技术发展的需要,我们对NRSL光电子能谱站的控制系统进行了改造,并设计出由3个16 bit D/A转换而成的精度较高的18 bit D/A.经过对其稳定性、重复性进行测试表明18 bit D/A达到设计要求.经过对Au 4f的XPS测试,改造后的总分辨率优于400 meV.In order to meet the needs new scientific experiments, the control system of photoelectron spectroscopy station at NSRL was reconstructed. A new kind of 18 bit D/A was designed, which is composed of three 16 bit D/A. Its stability and repetition were tested. The test results show that the resolution of the photoelectron spectroscopy is better than 400 meV.

关 键 词：光电子能谱 分析器 18 BIT D/A 线宽 

分 类 号：O485[理学—固体物理] TP202[理学—物理]