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K X‐ray satellite structures of bromine and molybdenum
Author(s) -
Natarajan L.
Publication year - 2020
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.3158
Subject(s) - atomic physics , dipole , fine structure , wave function , ionization , l shell , physics , electric dipole transition , relativistic quantum chemistry , satellite , bromine , electronic band structure , stark effect , ion , chemistry , electric field , condensed matter physics , magnetic dipole , quantum mechanics , exciton , earth's magnetic field , organic chemistry , astronomy , magnetic field
The energies and electric dipole rates of K α X‐ray satellites due to 1 s ‐2 p transitions in bromine and molybdenum with one to five vacancies in the 2 p shell and other shells retaining their normal occupation numbers are computed using Multi‐Configuration Dirac Fock wavefunctions with the inclusion of relativistic and quantum electrodynamic corrections. As fully relativistic calculations on all the K α X‐ray fine structure satellites with multiple spectator vacancies in the 2 p shell of elements under consideration, to the best of our knowledge, are reported in this work for the first time, the accuracy of the E1 data is analyzed in terms of the agreement between the rates in the length and velocity forms. While the intensities of the strong electric dipole lines in the various groups of 1 s ‐ 2 p transitions obey the well established Z dependence, many of the weak transitions vary randomly with Z and an attempt is made in this work to understand the behaviour of the spin‐forbidden and weak electric dipole lines in the K α L n X‐ray satellite structure of Br, Mo, I, and Au. As the number of closely spaced fine structure transitions range from a few to many depending on the spectator vacancies in the 2 p shell, the intensity weighed statistical average satellite energies, line strengths and photo‐ionization cross sections are reported to guide in the reliable interpretation of experimental measurements.