中国物理B ›› 2019, Vol. 28 ›› Issue (9): 98504-098504.doi: 10.1088/1674-1056/ab3442

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Intrinsic transverse relaxation mechanisms of polarized alkali atoms enclosed in radio-frequency magnetometer cell

Yang-Ying Fu(傅杨颖), Jie Yuan(袁杰)   

  1. College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
  • 收稿日期:2019-04-15 修回日期:2019-07-02 出版日期:2019-09-05 发布日期:2019-09-05
  • 通讯作者: Jie Yuan E-mail:jieyuan@nudt.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 61475192).

Intrinsic transverse relaxation mechanisms of polarized alkali atoms enclosed in radio-frequency magnetometer cell

Yang-Ying Fu(傅杨颖), Jie Yuan(袁杰)   

  1. College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
  • Received:2019-04-15 Revised:2019-07-02 Online:2019-09-05 Published:2019-09-05
  • Contact: Jie Yuan E-mail:jieyuan@nudt.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 61475192).

摘要:

The intrinsic transverse relaxation mechanisms of polarized alkali atoms enclosed in the radio-frequency magnetometer cell are investigated. The intrinsic transverse relaxation rate of cesium atoms as a function of cell temperature is obtained. The absorption of alkali atoms by the glass wall and the reservoir effect are the main error factors which contribute to the disagreements between theory and experiments. A modified relaxation model is presented, in which both the absorption of alkali atoms by the glass wall and the reservoir effect are included. This study provides a more accurate description of the intrinsic transverse relaxation mechanisms of polarized alkali atoms, and enlightens the optimization of the cell design.

关键词: intrinsic transverse relaxation, modified relaxation model, absorption of alkali atoms, reservoir effect

Abstract:

The intrinsic transverse relaxation mechanisms of polarized alkali atoms enclosed in the radio-frequency magnetometer cell are investigated. The intrinsic transverse relaxation rate of cesium atoms as a function of cell temperature is obtained. The absorption of alkali atoms by the glass wall and the reservoir effect are the main error factors which contribute to the disagreements between theory and experiments. A modified relaxation model is presented, in which both the absorption of alkali atoms by the glass wall and the reservoir effect are included. This study provides a more accurate description of the intrinsic transverse relaxation mechanisms of polarized alkali atoms, and enlightens the optimization of the cell design.

Key words: intrinsic transverse relaxation, modified relaxation model, absorption of alkali atoms, reservoir effect

中图分类号:  (Magnetooptical devices)

  • 85.70.Sq
42.62.Be (Biological and medical applications) 33.80.-b (Photon interactions with molecules)