Title :
The effects of temperature and magnetic field on spin relaxation mechanisms in Cs magnetometer
Author :
Qingmeng, Li ; Xianjin, Zeng ; Junhai, Zhang ; Weimin, Sun
Author_Institution :
Coll. of Sci., Harbin Eng. Univ., Harbin, China
Abstract :
The paper describes a new all optical cesium magnetometer with spin-exchange relaxation-free (SERF). The dependence of each relaxation rate on temperature in this magnetometer is shown respectively. The spin-exchange relaxation rate can be neglected compared with other spin relaxation mechanisms while a suitable temperature and magnetic field are provided. A detail theoretical analysis is expressed to give the appropriate range of temperature and magnetic field. The result shows that in order to complete the magnetometer with SERF, the temperature of the Cs vapor should be higher than 96.7°C while the magnetic field is 10.6 nT.
Keywords :
caesium; magnetic field effects; magnetic relaxation; magneto-optical sensors; magnetometers; Cs; SERF; all optical cesium magnetometer; magnetic field effect; magnetic flux density 10.6 nT; relaxation rate; spin relaxation; spin-exchange relaxation-free; temperature effect; Magnetic fields; Magnetic noise; Magnetic resonance; Magnetic resonance imaging; Magnetic shielding; Magnetometers; Saturation magnetization; cesium atom magnetometer; magnetic field; spin-exchange relaxation-free; temperature;
Conference_Titel :
Optoelectronics and Microelectronics Technology (AISOMT), 2011 Academic International Symposium on
Conference_Location :
Harbin
Print_ISBN :
978-1-4577-0794-0
DOI :
10.1109/AISMOT.2011.6159307
