Chinese Journal of Magnetic Resonance ›› 2011, Vol. 28 ›› Issue (3): 378-382.

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Measurement and Elimination of Wall Shift of Hydrogen Atomic Clocks

 LI Yu-Ying1,2, ZHAI Zao-Cheng1*   

  1. 1. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030, China;
    2. Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-08-31 Revised:2011-03-08 Online:2011-09-05 Published:2011-09-05
  • Supported by:

    国家自然科学基金资助项目(110910778704).

Abstract:

Wall shift is the main problem for improving long term stability of atomic hydrogen clocks. In this paper, a simple method for measuring wall shift was introduced, and the possible techniques for eliminating the wall shift and improving the long term stability of hydrogen atomic clocks were discussed.

Key words: hydrogen atomic clock, wall shift, long term frequency stability

CLC Number: