Kβ X-ray emission from He-like ions

✍ Scribed by Anuradha Natarajan; L. Natarajan

• Book ID: 104028690
• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 201 KB
• Volume: 109
• Category: Article
• ISSN: 0022-4073
• DOI: 10.1016/j.jqsrt.2008.03.003

✦ Synopsis

Relativistic calculations on the energies and electric dipole rates of K b X-rays from 1s3p( 1 P 1 , 3 P 1 )-1s 2 ( 1 S 0 ) transitions for He-like ions in the range Z ¼ 14-54 are carried out using multi-configuration Dirac-Fock (MCDF) wave functions in the active space interaction approach. The contributions from Breit interaction and quantum electrodynamics have also been included in the calculation. An attempt has been made to find a scaling expression for Breit energy in terms of Za .The scaled Breit energies are in good agreement with the earlier accurate relativistic results and this ensures the reliability of our scaling procedure. The behavior of MCDF wavefunctions for a given J in the non-relativistic limit has also been studied. The calculated K b X-ray energies and rates agree well with other available experimental and theoretical values.