[1] Brillet A. Evaluation of the light shifts in an optically pumped cesium beam frequency standard. Metrologia, 1981, 17(1):147～150

[2] Boussert B. Evaluation of the performances of an optically pumped miniature atomic frequency standard. ［Ph. D. thesis］, Orsay(France):University Parix Ⅺ, 1996

[3] Ohshima S, Nakadan Y, Ikeshi T et al.. Light shifts in an optically pumped Cs beam frequency standard. IEEE Trans. Instrum. & Meas., 1991, 40(6):1003～1007

[4] Happer W, Mathur B S. Effective operator formalism in optical pumping. Phys. Rev., 1967, 163(1):12～25

[5] Lee W D, Shirley J H, Lowe J P et al.. The accuracy evaluation of NIST-7. IEEE Trans. Instrum. & Meas., 1995, 44(1):120～123

[6] Rovera D, de Clercq E, Clairon A. An analysis of major frequency shifts in the LPTF optically pumped primary frequency standard. IEEE Trans. on UFFC., 1994, 41(2):245～249

[7] Makdissi A. Research on the frequency shifts in Cs beam frequency standard. ［Ph. D. thesis］, Orsay(France):University Paris Ⅺ

[10] Chen Jingbiao, Wang Fengzhi, Yang Donghai et al.. A new design of a diffused laser light optically pumped small cesium beam frequency standard. IEEE Trans. on UFFC.,2000, 47(2):457～460