The absorption spectrum of Tl in the vacuum ultraviolet: single and double excitations of 5d, 6s and 6p electrons
作者： M A Baig , S Ahmad , M Akram , J -P Connerade , J Hormes
DOI: 10.1088/0953-4075/25/8/008
关键词: Electron 、 Absorption spectroscopy 、 Atomic physics 、 Quantum defect 、 Series (mathematics) 、 Spectrum (functional analysis) 、 Ion 、 Excited state 、 Physics 、 Mixing (physics)
摘要: The authors report new high resolution observations of the 5d inner shell and doubly excited spectrum Tl I. Long series to four conspicuous limits 5d-excited parent ion have been studied, three also observed. A detailed analysis is presented including, in particular, a discussion number expected based on an independent-particle model for single excitations from augmented by spectator-electrons approximation. Perturbations are unfolded using multichannel quantum defect theory, found be generally rather weak. As regards double excitations, only some terms observed, different mixing schemes discussed relation photo-double-ionization data I Pb
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