Molecular photoionization cross-sections and their dependence on excitation energy

A general formula for the photoionization cross-section of a linear molecule in terms of atomic subshell cross-sections and diffraction effects is given. Example calculations are carried out for line intensities of CO and N 2 as a function of incident photon energy from threshold up to the soft X-ra...

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Bibliographic Details
Published in:Journal of electron spectroscopy and related phenomena 1974, Vol.3 (5), p.339-344
Main Authors: Huang, Jan-Tsyu J., Ellison, Frank O., Rabalais, J.Wayne
Format: Article
Language:English
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Summary:A general formula for the photoionization cross-section of a linear molecule in terms of atomic subshell cross-sections and diffraction effects is given. Example calculations are carried out for line intensities of CO and N 2 as a function of incident photon energy from threshold up to the soft X-ray region. The importance of associating CNDO coefficients to orthogonal Slater AO's is pointed out. General rules for dependence of photoionization cross-sections on excitation energy are discussed.
ISSN:0368-2048
1873-2526
DOI:10.1016/0368-2048(74)80018-6