Measuring accurate electron-molecule cross-sections for Plasma simulation

COFFEE_KLATCH · Invited

Abstract

An infrastructure has been built to measure absolute electron-atom (molecule) cross sections for elastic scattering, vibrational and electronic excitation and dissociative attachment. Emphasis is on low- energy capacity, entire range of scattering angles, low background and good resolution. Examples presented: \begin{itemize} \item[-]{CO: Elastic and vibrational excitation, differential and integral cross sections, in connection with simulations of planetary atmospheres of L Campbell and M Brunger.} \item[-]{HCN and C$_2$H$_2$: Absolute dissociative electron attachment cross sections, in connection with \textit{ab initio} 3-dimensional calculations of A E Orel and S T Chourou.} \item[-]{HCl and HBr: Absolute dissociative electron attachment cross sections, in connection with nonlocal resonance calculations of J Fedor, M Cizek, V McKoy and coworkers.} \item[-]{Kr: Absolute elastic and electronic excitation cross sections, in connection with $B$-spline $R$-matrix calculations of K Bartschat and O Zatsarinny.} \end{itemize} \\[4pt] In collaboration with Olivier May and Dusan Kubala, University of Fribourg.

Authors

  • M. Allan

    University of Fribourg