Near-thresholdK-shell photoionization of argon
- 1 December 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 42 (11), 6507-6511
- https://doi.org/10.1103/physreva.42.6507
Abstract
The K-shell photoionization cross section of argon near the threshold has been obtained with the multiconfiguration Hartree-Fock method for continuum wave functions. The electron correlation and the core-relaxation effects that are very important in this process have been taken into account in the calculation very accurately in the ab initio manner through the configuration-interaction procedure. The present results are compared with the experimental measurements and are found to be in excellent agreement. The two-electron resonances that have been observed immediately above the ionization threshold have been identified and assignments have been made to these based on accurate calculations.Keywords
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