利用塞曼扫频法实现对减速锶原子束速度分布的直接测量
Measurement of velocity distribution for strontium atom beam by Zeeman Scanning technology
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摘要: 应用塞曼扫频的方法对减速前后锶原子束的速度分布进行了测量,减速前锶原子束的最可几速度为420m/s,减速后锶原子束的最可几速度为60m/s,速度分布线宽相应压窄.塞曼扫频法实验装置简单,操作方便,原子束的速度分布源自对原子束荧光的直接观测,测量精度较高.Abstract: We measure the velocity distribution of the strontium atomic beam directly by Zeeman scanning technology.The most probable velocities of atomic beam before and after Zeeman deceleration are 420 m/s and 60 m/s respectively.Zeeman scanning method is much convenient than other detect ways.Because of its direct fluorescence observation,it has a high accuracy relatively.
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