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

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.