A complete cross section data set for electron scattering by pyridine: Modelling electron transport in the energy range 0–100 EV

Filipe Costa, Ali Traoré-Dubuis, Lidia Álvarez, Ana I. Lozano, Xueguang Ren, Alexander Dorn, Paulo Limão-Vieira, Francisco Blanco, Juan C. Oller, Antonio Muñoz, Adrián García-Abenza, Jimena D. Gorfinkiel, Alessandra S. Barbosa, Marcio H.F. Bettega, Peter Stokes, Ronald D. White, Darryl B. Jones, Michael J. Brunger, Gustavo García

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Abstract

Electron scattering cross sections for pyridine in the energy range 0–100 eV, which we previously measured or calculated, have been critically compiled and complemented here with new measurements of electron energy loss spectra and double differential ionization cross sections. Experimental techniques employed in this study include a linear transmission apparatus and a reaction microscope system. To fulfill the transport model requirements, theoretical data have been recalculated within our independent atom model with screening corrected additivity rule and interference effects (IAM-SCAR) method for energies above 10 eV. In addition, results from the R-matrix and Schwinger multichannel with pseudopotential methods, for energies below 15 eV and 20 eV, respectively, are presented here. The reliability of this complete data set has been evaluated by comparing the simulated energy distribution of electrons transmitted through pyridine, with that observed in an electron-gas transmission experiment under magnetic confinement conditions. In addition, our representation of the angular distribution of the inelastically scattered electrons is discussed on the basis of the present double differential cross section experimental results.

Original languageEnglish
Article number6947
Number of pages20
JournalInternational Journal of Molecular Sciences
Volume21
Issue number18
DOIs
Publication statusPublished - 2 Sep 2020

Keywords

  • Electron scattering cross sections
  • Electron transport in gases
  • Molecular ionization
  • Pyridines

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