rubidium-vapor magnetometer

rubidium-vapor magnetometer

[rü′bid·ē·əm ¦vā·pər ‚mag·nə′täm·əd·ər] (engineering) A highly sensitive magnetometer in which the spin precession principle is combined with optical pumping and monitoring for detecting and recording variations as small as 0.01 gamma (0.1 microoersted) in the total magnetic field intensity of the earth. Also known as rubidium magnetometer.