Title :
Accuracy evaluation of the optically pumped Cs frequency standard at NRLM
Author :
Hagimoto, K. ; Ohshima, S. ; Nakadan, Y. ; Koga, Y.
Author_Institution :
Nat. Res. Lab. of Metrol., Ibaraki, Japan
Abstract :
To evaluate the accuracy of the optically pumped Cs frequency standard at NRLM (NRLM-4), we measured its frequency stability and the frequency difference between NRLM-4 and the international atomic time (TAI).
Keywords :
Doppler shift; atomic beams; atomic clocks; caesium; frequency stability; frequency standards; optical pumping; Allan variances; Cs; NRLM-4 standard; accuracy evaluation; caesium frequency standard; cavity phase difference effect; frequency difference; frequency stability; international atomic time; optically pumped; second-order Doppler effect; Atom optics; Atomic measurements; Frequency estimation; Frequency measurement; Laser excitation; Masers; Microwave ovens; Optical pumping; Stability; Time measurement;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1998 Conference on
Conference_Location :
Washington, DC, USA
Print_ISBN :
0-7803-5018-9
DOI :
10.1109/CPEM.1998.699734
