The M4, 5-NN Auger and M2, 3-M4, 5N Coster-Kronig spectra of krypton induced by electron impact. (July 2021) - Jureta, Jozo J.
Highlights: High-resolution Auger and Coster-Kroning spectra of krypton by electron impact. Among the sixty four features observed, fifty five are assigned in KE 24 - 59 Ev. Ionization of the 3d shell: shake-up, shake-off excitations and satellite transitions. Post-collisional quantified by exponent in the function of shift vs excess energy. Different exponents determined for the states depending of the electrostatic interaction. Abstract: The Kr M4, 5 -NN Auger transitions are studied in the kinetic energy region 24 - 59 eV by using non-monochromatic electron beam and a high resolution electrostatic analyzer. Among the sixty four features observed, fifty five are assigned, while nine stay unassigned. The post-collision interaction (PCI) effects in the M5 -N1 N1 ( 1 S0 ) and M5 -N2, 3 N2, 3 ( 1 S0 ) Auger peaks are studied as a function of electron incident energy approaching the M5 edge (95.04 eV). The PCI shifts are found to be well represented by an exponential function of the excess energy with exponents β = (-0.99±0.05 and -3.08±0.05) for the N2, 3 N2, 3 ( 1 S0 ) and N1 N1 ( 1 S0 ) peaks, respectively. The M2, 3 -M4, 5 N Coster-Kronig transitions are studied in kinetic energy region 65 - 110 eV and at incident energies from 120 to 2019 eV. Owing to a high resolution twelve well resolved satellites in the region bellow 90 eV are observed, while in the region 90 - 110 eV two broad features are assigned to the M2, 3 -M4, 5 N2, 3 C-K peaks with intensity ratio (M3 /M2 = 2.37) are observed. Comparison is made with available data from literature.