光泵磁共振中确定地磁水平分量方向的改进方法  

Determining the direction of the geomagnetic horizontal component in optical pump magnetic resonance

作　　者：高子镡 池水莲 王彩强 张玉霞 GAO Zi-xin;CHI Shui-lian;WANG Cai-qiang;ZHANG Yu-xia(Physics and Photoelectricity School, South China University of Technology, Guangzhou 510640, China)

机构地区：[1]华南理工大学物理与光电学院,广东广州510640

出　　处：《物理实验》2018年第3期11-14,共4页Physics Experimentation

基　　金：国家自然科学基金项目(No.61503140);全国教育信息化专项课题子课题(No.JYB1503611A);广东省教育科学规划课题(No.15JXN028);2018年广州市高校创新创业教育项目(No.201709k31);2016年广东省实验室研究会基金项目(No.GDJ2016053);校级教研教改项目(No.x2wlY1171180);校级探索性实验项目(No.x2wl-Y1170580);校级学生研究计划项目

摘　　要：讨论了光泵磁共振实验中亥姆霍兹线圈产生的磁场方向与地磁场水平分量方向的一致程度对实验结果的影响,并分析了传统确定方向一致的方法的不足.通过调节光泵磁共振仪的摆放方向,观察共振信号的分开程度来确定仪器摆放方向与地磁场水平分量方向之间的夹角,当分开程度最小时,对应仪器方向与地磁场水平分量方向相互平行.The influence of directions of the uniform magnetic field of Helmholtz coil and the horizontal component of the geomagnetic field on the experimental results in the optical pumping magnetic resonance experiment was discussed.The shortage of the traditional method to determine the direction was analyzed.The angle between the instrument and the horizontal component of the geomagnetic field was determined by observing the resonance signal while adjusting the direction of the instrument.The corresponding instrument direction and the direction of geomagnetic field horizontal component was parallel to each other when the separating degree was smallest.

关 键 词：光泵磁共振 地磁场水平分量 共振信号 gF因子 

分 类 号：O562.32[理学—原子与分子物理]