Electron-impact excitation of argon: Cross sections of interest in plasma modeling

Electron-impact excitation of krypton: Cross sections of interest in plasma modeling

“…where k a(b) is the momentum of the projectile electron in the initial (final) channel and T RDW a→b is the transition matrix for the excitation process which can be calculated as explained in our earlier work [1]. The transition matrix contains terms representing both direct excitation and transitions involving exchange of the incident electron with one of the bound electrons.…”

“…Recently we have studied electron-impact excitation of argon gas atoms [1] in the light of the importance of optical emission diagnostics of rare-gas plasmas. These are widely used in laboratory and astrophysical plasma studies and industrial applications [2,3].…”

“…These are widely used in laboratory and astrophysical plasma studies and industrial applications [2,3]. In [1] we used the relativistic distorted-wave (RDW) method to calculate differential cross sections (DCSs) for electron-impact excitation of argon atoms from the ground state to the various fine-structure levels of the 3p 5 3d, 3p 5 5s, and 3p 5 5p manifolds over a wide range of energies. We also reported angle-integrated cross sections (ICSs) for these transitions.…”

“…Our RDW method is fully relativistic and utilizes the solution of the Dirac equations to calculate the wave functions of both the initial and final channels for the projectile electron. The bound target states are represented as Dirac-Fock multiconfiguration wave functions [1,4].…”

LXCat: an Open‐Access, Web‐Based Platform for Data Needed for Modeling Low Temperature Plasmas

“…The cross sections for argon have appeared as: ground to the 4 p manifold, [90] to the 3 d, 5 s and 5 p manifolds, [91] from the metastable levels of the 4 s manifold to the 5 p manifold, [92] from the resonance levels of the 4 s manifold to the 4 p manifold as well as transitions among the FS levels of the 4 s and 4 p manifolds. [93] For krypton, the cross sections have been published as follows: from the ground state to the 5 s manifold, [94] to the 4 d, 5 p, and 6 s manifolds [95] and to the 6 p manifold [96] ; from the 5 s metastable levels to the 5 s and 5 p manifolds [97] ; from the 5 s manifold to the 6 p manifold.…”