磁场对光轴运信号的影响  

Influence of mqgnetic field on optical pumping signal

作　　者：侯清润[1] 曾 蓓[1] 张薇薇[1] 张慧云[1] 陈 宏[1] 

机构地区：[1]清华大学物理系,北京100084

出　　处：《物理实验》2001年第12期9-12,共4页Physics Experimentation

基　　金：清华大学学生科研训练(Student Research Training;SRT)计划资助.

摘　　要：摘 要；在做光泵磁共振实验时，分别研究了竖直线圈和水平线圈产生的磁场对光抽运信号的影响．并做出了它们之间的关系曲线．由此曲线计算了北京地磁场的垂直分量为（0. 0881±0·0015）×10-4T ,估算出北京地磁场的水平分量约为 0．425 ×10-4T．同时，这项工作对于区分光抽运信号和磁共振吸收信号也有一定的帮助．Abstract: The influence of magnetic field caused by vertical coil and horizontal coil on optical pumping signal was studied in the optical pumping magnetic resonance experiment. The curve of optical pumping signal versus magnetic field was obtained. According to the curve , the vertical magnetic field of the earth in Beijing was calculated as (0.0881 + 0.0015) ×10-4T and the horizontal one was estimated to be 0. 425×10-4T. It was also useful for us to distinguish the magnetic resonance signal from the optical pumping signal.

关 键 词：光抽运信号 磁场 磁共振吸收信号 光泵磁共振实验 

分 类 号：TN245[电子电信—物理电子学] O441[理学—电磁学]