R. Hauko, J. Padežnik Gomilšek, A. Kodre, I. Arčon, U. Luin
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引用次数: 0
Abstract
Analysis of the recently measured absorption spectra of molecular HI at K and L edges of iodine, in parallel with previously measured spectra of noble gas Xe and the K edge spectrum of atomic I, is presented. A strong dependence of some valence multielectron photoexcitation features on the orbital momentum of the core vacancy is found, attributed to the change of the symmetry of the HI molecule: the shake-up coexcitation of a valence electron to a free molecular orbital is much stronger at L3 than L1 edge. The effect of angular momentum of the core hole on the shake processes of deeper multielectron photoexcitations is found negligible. Both HI and Xe exhibit a much weaker one-electron transition [1s]6p than monatomic I. At the K edge, the strength of coexcitations of 4d, 4p and 3d subshells in atomic I is close to the HI and Xe. The same is found for HI and Xe at the L edges, due to a weak contribution of the additional free molecular orbital in HI.
期刊介绍:
Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing.
The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.