The Influence of the Magnetic Field Inhomogeneity on the Orientational Light Frequency Shift in Rubidium Clock

In this work, the influence of the operating magnetic field gradient on the frequency of the 0-0-transition of a lamp-pumped rubidium atomic clock was investigated. As a gas cell, we used a cell with an antirelaxation coating of the walls and containing Rb87 atoms. Experimental dependences of the atomic clock model resonance frequency on the applied magnetic field gradient in the range of 0.003 Oe / cm - 0.012 Oe / cm and in the magnetic fields range of 0.0135 Oe - 0.027 Oe were obtained. The orientation 0-0-resonance frequency shift having value more than value of the frequency shift due to the quadratic magnetic dependence of the 0-0-resonance frequency was measured.