Calculation of collisional and radiative transition probabilities between excited argon levels

Details Calculation of collisional and radiative transition probabilities between excited argon levels Calculation of collisional and radiative transition probabilities between excited argon levels

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jqsrt..34..189k&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer (ISSN 0022-4073), vol. 34, Aug. 1985, p. 189-215.

Computer Science

15

Argon, Atomic Energy Levels, Electron Scattering, Electron States, Transition Probabilities, Angular Momentum, Neutral Atoms, Quantum Numbers

Scientific paper

Average radiative transition probabilities for argon atoms have been calculated for transitions between 24 levels in two groups characterized by the atomic core terms 2P(1/2) and 2P(3/2) by using the method of Bates and Damgaard. The results are compared with data in the NBS tables (Wiese et al.) and with those of Katsonis and Drawin. Satisfactory agreement is found for the order of magnitude, even for transitions between lower lying levels. Parameters, which appear in Drawin's semiempirical cross-section expressions for electronic excitation of optically allowed and parity-forbidden transitions, are determined with the multipole expansion method proposed by Sobel'man for transitions between the specified levels. Most of these are easily obtained, but the method must be improved for transitions between levels having the same azimuthal quantum number because the summation over the constituent terms does not converge.

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