Refinement of energies of ''internal reference point'' series of Lu neutron-deficient isotopes

More accurate determination of intense lines of internal conversion electrons, used as ''internal reference lines'' in the studies of sup(169-172)Lu decays, is carried out. Calibration of a β-spectrometer is changed: 1) 9 new lines in the energy range from 2700 to 3100 keV according to the 170Lu measurements are added to 22 lines known previously; 2) more accurate energies of 307 and 730 keV transitions in 169Tm and of 661 and 649 keV transitions in 137Ba, defined by means of a crystal-diffraction spectrometer are used. More accurate energies of reference lines and energies of 170Lu transitions in the range from 323.67 to 3302.6 keV, recalculated using new set of reference lines, are presented in the tabulated form