Shifts of X-ray Characteristics L Lines of Free Atoms of Rare-Earth Metals

摘要

Results of the study of X-ray characteristic spectra of free atoms of a number of rare-earth metals from Ce to Ho are reported. L_(α1) and L_(β1) lines were studied, and the shifts of the peaks of emission lines of free atoms relative to their positions in the case of emission by the solid aggregate state were measured. The data obtained enable one to use the corresponding X-ray characteristic lines as references with the accuracy Δλ/λ ≈ 10~(-5). The Z-dependences of shifts are plotted.