Determination of Atomic Number Densities of 87Rb and 3He Based on Absorption Spectroscopy

被引：6
|
作者：
Zheng Hui-Jie [1 ,2 ]
Quan Wei [1 ,2 ]
Liu Xiang [3 ]
Chen Yao [1 ,2 ]
Lu Ji-Xi [1 ,2 ]
机构：
[1] Beihang Univ, Sci & Technol Inertial Lab, Beijing 100191, Peoples R China
[2] Beihang Univ, Fundamental Sci Novel Instrument & Nav Syst Techn, Beijing 100191, Peoples R China
[3] Shanghai Aerosp Control Engn Res Inst, Shanghai 200233, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2014年 / 31卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Atoms - Absorption spectroscopy;
D O I：
10.1088/0256-307X/31/10/103203
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The atomic number densities of Rb-87 vapor and surrounding gas He-3 in a sealed cubic cell were measured by sweeping the absorption line and fitting the experimental data with a Lorentzian profile. The absorption was carried out around the D1 transition at different temperatures. We compare our results for the number density for(87) Rb with the previous methods and calculate the fractional error to be less than 5% as well as the error for He-3 between this work and the density obtained from the filling procedure to be no more than 4.2% at 370 K. In addition, we discuss the factors that contribute to the error, among which the cell temperature plays the most important role.
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页数：4
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