Measurement of the energy of the (2s(1/2)2p(1/2)(2)2p(3/2)(2))(5/2)-(2s(2)2p(1/2)(2)2p(3/2))(3/2) x-ray transition in the N-like Pb-208(75+)

摘要

The (2s(1/2)2p(1/2)(2)2p(3/2)(2))(5/2)-(2s(2)2p(1/2)(2)2p(3/2))(3/2) x-ray transition in the N-like Pb-208(75+) was observed using the Tokyo electron beam ion trap at the University of Electro-Communications. The Pb spectral line energies were measured relative to the Lyman-alpha lines of the H-like S and the 1s4p P-1(1)-1s(2) S-1(0) transition in the He-like P. In the present work, the line from the N-like lead ions is analysed and the transition energy is determined to be 2662.98 +/- 0.12 eV. We also calculate the transition energies of the (2s(1/2)2p(1/2)(2)2p(3/2)(2))(5/2)-(2s(2)2p(1/2)(2)2p(3/2))(3/2) lines in N-like ions from Sn (Z = 50) through U (Z = 92) with the general relativistic atomic structure package Vanderbilt University (GRASPVU) package which is based on the multiconfiguration Dirac-Fock (MCDF) method. The calculations are compared with the available experimental results.