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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. | URI: | http://hdl.handle.net/10553/46061 | 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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