Abstract
The present status of an active spin maser which is being developed for an experimental search for 129Xe atomic electric dipole moment (EDM) is presented. In order to realize the long term stability of maser frequency, systematic effects for the spin maser operation were investigated. The correlations in the maser frequency with the solenoid current, the environmental field and the cell temperature were found. With the solenoid current and environmental field being stabilized and the cell temperature lowered, a frequency precision of 7.9 nHz has been achieved for the maser operation.
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This work is supported in part by the Grant-in-Aid for Scientific Research on Innovative Areas (No. 21104004) and the Grant-in-Aid for Scientific Research (A) (No. 21244029) by the Ministry of Education, Culture, Sports, Science, and Technology, Japan.
Proceedings of the 4th Joint International Conference on Hyperfine Interactions and International Symposium on Nuclear Quadrupole Interactions (HFI/NQI 2012), Beijing, China, 10–14 September 2012.
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Inoue, T., Furukawa, T., Yoshimi, A. et al. Nuclear spin maser and experimental search for 129Xe atomic EDM. Hyperfine Interact 220, 59–63 (2013). https://doi.org/10.1007/s10751-012-0751-z
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DOI: https://doi.org/10.1007/s10751-012-0751-z