General-purpose Atomic Structure Package Research Articles

Excitation energies, transition data of SXR, HXR, EUV and far-UV spectral lines with partition function, thermodynamic parameters and level population for W LXVII and W XLIX

We present excitation energies, emitted photon wavelength during the transition from upper level to lower level, lifetimes, transitions rates and other transition parameters for first fine structure 200 levels of W LXVII and W XLIX by using Multi-Configuration Dirac-Fock (MCDF) scheme in our calculations. We endorse that contributions of relativistic effects QED and Breit corrections in energies of levels are significant. We have also shown that our results of energies from both, Flexible Atomic Code (FAC) and General Purpose Atomic Structure Package (GRASP) matches with each other and also with NIST and other experimentally measured and theoretically calculated results. We have predicted all soft x-ray (SXR), hard x-ray (HXR), extreme ultraviolet (EUV) and far UV transitions from ground state in W LXVII and W XLIX. Furthermore, we have also provided relative population for first five excited states, partition function and thermodynamic quantities for both W LXVII and W XLIX and studied their variations with temperature. Besides, detailed new atomic data and thermodynamic data of W LXVII and W XLIX which are not published so far in the literature have been reported and can be advantageous in the field of modelling of fusion and astrophysical plasmas, cell biology and microscopic imaging.