The shielding efficiency investigation of precision airborne cesium atomic-beam tubes (ABT) with laser pumping (LP)
Formulas are presented for calculating the efficiency of longitudinal and transverse shielding of a magnetic protection system, which consists of five thin-wall coaxial cylinders made of alloys of 79HM and 81HMA grades. The calculation of the design efficiency of the magnetic shields used in cesium atomic-beam tubes with laser pumping and laser detection «Ugor» is carried out. The spectra of Zeeman resonances of atomic-beam tubes placed in external constant magnetic fields of various strengths are studied. The analysis of the frequency shift of Zeeman resonances made it possible to estimate the magnetic shielding coefficient of laser-pumped and laser-detected atomic-beam tubes and the magnetic shift of the zero transition frequency.