Benchmark calculations for electron collisions with complex atoms

28th International Conference on Photonic, Electronic and Atomic Collisions

Zatsarinny, Oleg^1 ; Bartschat, Klaus^1

Department of Physics and Astronomy, Drake University, Des Moines

IA

50311, United States^1

关键词: Astrophysical applications;    Benchmark calculations;    Electron collision;    Electron impact-ionization;    Electron-impact excitation;    Excitation process;    Fully differential;    R-matrix with pseudostates;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/1/012044/pdf
DOI  :  10.1088/1742-6596/488/1/012044

来源: IOP

【 摘 要 】

We report on a further extension of the B-spline R-matrix (BSR) method based on the continuum pseudostate approach. A new parallelelized version of the BSR code is intended to carry out large-scale R-matrix with pseudostates calculations and to provide converged (with respect to the number of coupled states) results for electron impact excitation of individual target states. The pseudostate approach also provides a fully nonperturbative scheme for electron-impact ionization, including simultaneous ionization plus excitation processes. Illustrative examples are given for He, Ne, and Ar excitation and ionization, including fully-differential (energy and angles) cross sections. The BSR code is also being used to generate extensive datasets for plasma and astrophysical applications.