electron impact excitation cross sections of neutral molybdenum : cross sections of interest in plasma modeling*

Molybdenum plays a vital role in plasma-mediated nuclear fusion devices such as International Thermonuclear Experimental Reactor (ITER), as it can be used to make first mirrors in the optical diagnostic systems. The present work calculates the electron impact excitation (EIE) cross sections for the fine structure resolved transitions in the Molybdenum (Mo) atom from the manifolds, 4d⁵5s, 4d⁴5s² , 4d⁶ and 4d⁵5p to the manifolds 4d⁵5s, 4d⁴5s² , 4d⁶ , 4d⁵5p, 4d⁴5s5p, 4d⁵5d, 4d⁵6s, 4d⁴5s6s, and 4d⁵7s. The calculations are performed using the multi-configurational Dirac-Fock (MCDF) wavefunctions and the relativistic distorted wave (RDW) approximation. The calculated oscillator strengths and transition probabilities are compared with the NIST atomic database for validating the reliability of the obtained cross sections. And EIE cross sections are compared with the available calculations and measurements reported by Badnell et al.,(J. Phys. B29,3683(1996)), Bartschat et al.,(J. Phys. B35,2899(2002)) and Smyth et al., (Phys.Rev.A96,042713(2017)). The cross sections are reported for the projectile electron energy ranging from threshold to 500 eV. The present consistent cross sections are required for developing collisional radiative models and thereby performing the spectroscopic characterization of non-equilibrium plasmas. The detailed results along with methodology and discussion will be presented at the conference.