Study of inner-shell excitation processes from N(1s) orbitals in N₂O molecules by electron impact

Abstract

A combination of the iterative Schwinger variational method with the distortedwave approximation is applied to study excitations of a core-level electron in a triatomic molecule by electron impact. More specifically, we report calculated differential and integral cross sections for the X 1 + → 1,3 (2σ → 3π ) and X 1 + → 1,3 (3σ → 3π) transitions in N 2 O in the 415-900 eV incident energy range. The RI(1:3) ratios, obtained via dividing the distortedwave integral cross sections for transitions leading to the singlet core-excited states by those leading to triplet states, are also reported. The generalized oscillator-strength profiles for the singlet transitions have also been calculated at the incident energy of 3400 eV. The comparison of these quantities with the available theoretical and experimental data reported in the literature is encouraging.

New approach on molecular ionization by ion impact: the CDW-EIS-SVIM model

“…Such a procedure ensures the orthogonality between the initial and final molecular orbitals. The SVIM has been used in a number of works covering electron-molecule elastic [15] and inelastic [16] processes to photoionization [17] and electronimpact ionization [18] of molecules. In such works several types of molecules have been studied, from the simple H 2 to the much more complex C 2 F 4 molecules.…”