Account for the influence of hyperfine interaction on the polarization of X-ray lines

Abstract

The polarization degree of the X-line due to the M2 quadrupole transition in the Sc+19 was calculated with account for the hyperfine (HF) interaction. Two effects were considered, the incoherent emission of photons from HF structure levels and the admixing of E1 transition. The first one is shown to be the dominant one in the decrease of polarization due to the HF interaction. The calculated degree −7, 2% is in agreement with the experimental value −1 ± 10% within the experimental errors.