Ions

We have presented a comprehensive study on electron impact excitation of xenon ions (Xe⁷⁺, Xe⁸⁺, Xe⁹⁺ and Xe¹⁰⁺) for the dipole allowed (E1) transitions in the extreme Ultra-Violet region of 8—19nm. We have implemented the multi-configuration Dirac–Fock (MCDF) method for the atomic structure calculation including the Breit and quantum electrodynamic (QED) corrections along with the relativistic configuration interaction. Present results for energy levels, wavelengths and transition rates are compared with previously reported experimental and theoretical results. Further, we have used the relativistic distorted wave method to calculate the cross sections from the excitation threshold to 3000 eV projectile electron energy. We have obtained the fitting parameters of these calculated cross sections using two different formulae for low and high energy ranges. The rate coefficients are also obtained using the calculated cross sections by considering the Maxwellian electron energy distribution function in the electron temperature range from 5 eV to 100 eV.