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Title: Relativistic quantum mechanic calculation of photoionization cross-section of hydrogenic and non-hydrogenic states using analytical potentials
Authors: Rodríguez, R. 
Gil, J. M. 
Rubiano, JG 
Florido, R. 
Martel, P. 
Mínguez, E.
UNESCO Clasification: 2207 Física atómica y nuclear
Keywords: Photoionization cross-sections
Analytical potentials
Bound and free wave functions
Issue Date: 2005
Publisher: 0022-4073
Journal: Journal of Quantitative Spectroscopy and Radiative Transfer 
Abstract: Photoionization process is a subject of special importance in many areas of physics. Numerical methods must be used in order to obtain photoionization cross-sections for non-hydrogenic levels. The atomic data required to calculate them is huge so self-consistent calculations increase computing time considerably. Analytical potentials are a useful alternative because they avoid the iterative procedures typical in self-consistent models. In this work, we present a relativistic quantum calculation of photoionization cross-sections for isolated ions based on an analytical potential to obtain the required atomic data, which is valid both for hydrogenic and non-hydrogenic ions. Comparisons between our results and others obtained using either widely used analytical expressions for the cross-sections or more sophisticated calculations are done.
ISSN: 0022-4073
DOI: 10.1016/j.jqsrt.2004.07.001
Source: Journal of Quantitative Spectroscopy and Radiative Transfer [ISSN 0022-4073], v. 91, p. 393-413
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