离子速度成像技术及其数据处理  

Technology of velocity-map imaging and its data analysis

作　　者：裴世鑫[1] 崔芬萍[1] 王明[1] 李传起[1] 

机构地区：[1]南京信息工程大学数理学院,江苏南京210044

出　　处：《物理实验》2009年第12期5-10,共6页Physics Experimentation

基　　金：江苏省自然科学基金(No.BK2008437);江苏省高校自然科学基金(No.09KJB170003);南京信息工程大学科研基金(No.20080281)

摘　　要：从能量守恒的角度论述了离子速度成像技术的基本原理,从"离子透镜"、二维探测、数据处理的原理与方法等方面介绍了离子速度成像技术.将离子速度成像技术与"完全非弹性碰撞"问题及夫兰克-赫兹实验等内容相结合,为学生直观地学习和掌握微观世界的"碰撞"问题及微观世界的能量守恒定律提供了一种实验方法.The technology of velocity-map imaging is introduced into the physics experiment teaching, the basic principle of velocity-map imaging technology is expounded using energy conversation law. The technology of velocity-map imaging is presented from three aspects： the principle of ion lens, the technology of two-dimensional detection, and the method of data analysis. The whole presentation is combined with the completely non-elastic collision and experiment of Frank-Hertz, etc. , which is more intuitive for students to study and master collision phenomenon and energy conservation.

关 键 词：能量守恒 碰撞 速度影像 离子透镜 二维探测 反Abel变换 

分 类 号：O438.1[机械工程—光学工程]