Triple differential cross section measurements for the outer valence molecular orbitals (1t₂) of a methane molecule at 250 eV electron impact

Abstract

In this study, detailed experimental research of triple differential cross section (TDCS) measurements is performed to investigate single ionization dynamics for the 1t2 orbital of methane molecule by 250 eV electron impact. In our experiments, the outgoing electrons are simultaneously measured in coincidence in a coplanar asymmetric geometry with the scattering angles of 10° and 20°. Therefore, TDCS measurements are performed for two different values of momentum transfer (K ≈ 0.9 au and 1.5 au). A detailed analysis of the dependence of the TDCS versus the momentum transfer is reported here.

An iterative deep learning procedure for determining electron scattering cross-sections from transport coefficients

“…However, argon and helium do not exhibit vibration and attachment collisions that are generally important in bio-molecules. Here, we use methane as a case study for the influence of vibration and attachment processes, as has been widely studied in the literature [25][26][27][28][29]. For example, the strong excitation processes demonstrated by methane lead to a breakdown of the two-term approximation that is often employed in the solution of Boltzmann's equations [29][30][31].…”