Electron impact differential cross sections of Kr (4p) atoms for the perpendicular plane emission of final state electrons

The perpendicular plane ionization results of (e, 2e) triple differential cross sections (TDCS) for the Kr (4p) atoms are reported at the incident electron energies 2 eV-50 eV above ionization potential. Modified distorted wave Born approximation formalism has been employed to calculate the TDCS. The results of our calculations have been compared with the measurements of Nixon et al. and it is observed that there are certain discrepancies between theoretical and experimental results which indicate that further theoretical efforts are required to understand the cross section trends of krypton atoms in the perpendicular plane ionization.