Configuration interaction in LTE spectra of heavy elements
- Negev Nuclear Research Centre, Beersheba (Israel)
- Lawrence Livermore National Lab., CA (United States)
We present a method for including the effects of configuration interaction (CI) between relativistic subconfigurations of an electron configuration in the calculation of emission and absorption spectra of plasmas in local thermodynamic equilibrium (LTE). Analytical expressions for the correction to the intensities, owing to Cl, of an unresolved transition array (UTA) and of a supertransition array (STA) are obtained when the correction is small compared to the spin-orbit splitting, bypassing the need to diagonalize energy matrices. These expressions serve as working formulas in the STA model and, in addition, reveal a priori the conditions under which CI effects are significant. Examples of the effect are presented.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 10172076
- Report Number(s):
- UCRL-JC-113642; CONF-9211211-3; ON: DE93017166; TRN: 93:016679
- Resource Relation:
- Conference: Radiative properties of hot dense matter conference,Santa Barbara, CA (United States),2-6 Nov 1992; Other Information: PBD: Nov 1992
- Country of Publication:
- United States
- Language:
- English
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