光泵磁共振实验中实验参数选取的探讨  

RESEARCH ON EXPERIMENTAL PARAMETERS IN OPTICAL-PUMPING MAGNETIC RESONANCE EXPERIMENTS

作　　者：段俊熙 冯璐[1] DUAN Junxi;FENG Lu(School of Physics, Beijing Institute of Technology, Beijing 100081)

机构地区：[1]北京理工大学物理学院,北京100081

出　　处：《物理与工程》2022年第1期136-142,共7页Physics and Engineering

基　　金：国家自然科学基金(61804008)。

摘　　要：在光泵磁共振实验中,选择合适的射频频率、扫场幅度和外加水平磁场对实验的顺利进行和保证实验测量结果的精度有着重要作用。虽然已有很多文章探讨过相关问题,但并未明确提出关于上述实验参数选取的原则以及相应的参数取值范围。本文提出在光泵磁共振实验中,相关实验参数的选取应该使得在测量过程中能够观测到所有对应于三角波峰和波谷位置的共振信号并明确地区分信号来源。本文通过理论分析给出了不同测量方法下相应的实验参数取值范围,并通过实验测量验证了这些参数取值范围的合理性。In optical-pumping magnetic resonance experiments,it is important to choose the appropriate RF frequency,sweeping field amplitude and external horizontal magnetic field for the smooth progress of the experiment and the accuracy of the experimental results.Although there have been many studies discussing related issues,the principles of selecting the parameters and the corresponding range of parameters are sill lacking.In this study,we propose a rule for the parameter selection that all the resonance signals corresponding to the triangular peaks and valleys of the sweeping field should be observable,and the source of the signals should be distinguishable.By combining theoretical and experimental studies,we provide the requirements for the parameters selection in different measuring procedures and demonstrate their rationality.

关 键 词：光泵磁共振 抽运信号 共振信号 扫场法 扫频法 

分 类 号：O431.1[机械工程—光学工程]