Formation of Kr3+ via core-valence doubly ionized intermediate states
Abstract
The time-of-flight photoelectron-photoion coincidence technique has been used to study single-photon 3d94p5 core-valence double ionization of Kr and subsequent Auger decay to triply charged states associated with the 4s24p3 and 4s14p4 configurations. The photon energy used was hν=150 eV. Multiconfiguration Dirac-Fock calculations were performed both for the doubly ionized intermediate states and the triply ionized final states. The intermediate states of Kr2+ are observed between 120 and 125 eV, whereas the final states of Kr3+ are observed between 74- and 120-eV ionization energy. Assignments of all structures are made based on the present numerical results. The calculated Auger rates give a detailed explanation of the relative line strengths observed.
- Publication:
-
Physical Review A
- Pub Date:
- March 2012
- DOI:
- 10.1103/PhysRevA.85.032502
- Bibcode:
- 2012PhRvA..85c2502A
- Keywords:
-
- 33.70.Ca;
- 33.80.Eh;
- 34.50.Gb;
- Oscillator and band strengths lifetimes transition moments and Franck-Condon factors;
- Autoionization photoionization and photodetachment;
- Electronic excitation and ionization of molecules;
- intermediate molecular states