Affiliation:
1. Indian Institute of Technology Roorkee, Roorkee 247667, India
Abstract
A collisional radiative model for Kr III in the ultraviolet regime is developed. For this purpose, atomic parameters for 4s24p4, 4s4p5, 4s24p3nl, and 4s24p35d configurations with n ranging from 5 to 7 and l=s,p, using the multiconfiguration Dirac–Hatree–Fock method are calculated. The effects of Breit and radiative quantum electrodynamic corrections are also included. Electron impact excitation cross-sections from the ground state, along with four metastable states arising from the 4s24p4 configuration to all fine structure levels of interest, are calculated using the relativistic distorted wave method. The reliability of the model is tested by comparing the predicted results with the previous measurements.
Reference30 articles.
1. Atomic data for neutron-capture elements-II. Photoionization and recombination properties of low-charge krypton ions;Sterling;Astron. Astrophys.,2011
2. The abundance of interstellar krypton;Cardelli;Astrophys. J.,1997
3. Atomic data for resonance absorption lines. II. Wavelengths longward of the Lyman limit for heavy elements;Morton;Astrophys. J. Suppl. Ser.,2000
4. Gupta, S., Oishi, T., and Murakami, I. (2023). Study of Electron Impact Excitation of Na-like Kr Ion for Impurity Seeding Experiment in Large Helical Device. Atoms, 11.
5. Collisional-radiative model of xenon plasma with calculated electron-impact fine-structure excitation cross-sections;Priti;Plasma Sources Sci. Technol.,2019