L1atomic-level width of elements62<~Z<~83

Abstract

High-resolution measurements of the photoinduced dipole-forbidden L 1 -M 4,5 x-ray emission lines were performed with a reflection-type and a transmission-type bent-crystal spectrometer for 62 Sm, 67 Ho, 70 Yb, 74 W, 78 Pt, 80 Hg, and 83 Bi. From the observed linewidths of the L 1 -M 4,5 x-ray transitions, the level widths of the subshell L 1 were determined assuming for the M 4,5 level widths the values reported recently by Campbell and Papp ͓X-ray Spectrom.

Energies and widths of atomic core-levels in liquid mercury

“…The same trend is observed for the transitions involving M 1 holes, whereas for L 2 and L 3 transitions involving M 4,5 vacancies in the final states, a satisfactory agreement is found. This observation that theory overestimates the transition widths when 2s [38] or 3s [64] vacancies are present in the initial or final state results from the difficulty of calculations to provide reliable predictions for the Coster-Kronig rates. In general, the latter are indeed overestimated by theory.…”

Fluorescence yields and Coster–Kronig probabilities for the atomic L subshells. Part II: The L1 subshell revisited

“…The Auger yields thus predicted exist for the seven Z values for which new XES measurements were done and are shown in Table B of Appendix A; in fact additional XES data points were taken [17] but these were in a region of atomic number where non-lifetime broadening effects were present, therefore, they are not useful here. If, for these seven Z values, we combine the deduced a 1 values with the recommended f 12 , f 13 and x 1 values, we have a consistency test, insofar, as this sum should be equal to unity.…”

“…Close to half of these data points are from very early (1944) X-ray emission spectroscopy (XES), and most of the remainder are deduced from the PISR/LX/GC measurements discussed above. However, a modern set of XES measurements [16,17] done mostly after publication of Ref. [7] offers us the possibility to replace all the older data and thereby avoid the circularity inherent in any reliance on the widths deduced from the PISR/LX/GC data.…”

Reexamination ofM2,3atomic level widths andL1M2,3Fennane1, Berset2, Dousse3 et al. 2013Phys. Rev. ASelf Cite5020View full textAdd to dashboardCite

“…6 of Ref. [1]) disappears if the M 3 widths in this Z region are derived using the enhanced L 1 level widths observed in [4] for the lanthanides. * Corresponding author: jean-claude.dousse@unifr.ch It follows from the above that the question should be asked as to whether the second bump, in the Campbell and Papp M 3 plot, lying in the 75 Z 92 region, is also a consequence of neglected effects within the data which are involved in deducing the M 3 width.…”

“…More recently Raboud et al [4] determined the L 1 atomic level width for several elements with atomic numbers 62 Z 83 from high-resolution XES measurements of the quadrupole-allowed (E2) transitions L 1 M 4,5 , assuming for the M 4,5 level widths the values recommended by Campbell and Papp [1]. A fairly good agreement with Campbell's recommended L 1 level widths was found, except in the lanthanide region (57 Z 70) where a large discrepancy was observed.…”