Electron scattering cross section data for tungsten and beryllium atoms from 0.1 to 5000 eV

F. Blanco, F. Ferreira da Silva, P. Limao-Vieira, G. Garcia

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We report integral cross sections for electron interactions with tungsten and beryllium atoms in the incident electron energy range from 0.1 up to 5000 eV. The calculated cross sections are obtained for electron-atom scattering processes represented by a complex potential. For tungsten, ionization cross sections are discussed in the electron energy region from threshold up to 5000 eV against the available data from the Deutsch-Mark formalism and a semi-empirical complex scattering potential. Although a reasonable agreement for the ionization cross sections has been found in the overlapping energy region, inconsistencies on the integral inelastic cross sections from the previous semi-empirical approach based on a complex scattering potential ionization contribution, are now amended and comprehensively explained. For beryllium atoms an excellent agreement with previous 'state-of-the-art' scattering theory calculations has been found for the integral elastic cross sections. However, the partial contribution of the excitation and ionization channels to the inelastic part shows serious discrepancies which deserve further investigations. Calculated elastic differential cross sections for tungsten are also reported from 0.1 to 5000 eV for scattering angles from 0° to 180°. The present set of cross sectional data may be of relevance for the plasma fusion community.

Original languageEnglish
Article number085004
JournalPlasma Sources Science & Technology
Volume26
Issue number8
DOIs
Publication statusPublished - 18 Jul 2017

Keywords

  • atomic data for fusion
  • electron scattering cross sections
  • electron-atom collision data

Fingerprint Dive into the research topics of 'Electron scattering cross section data for tungsten and beryllium atoms from 0.1 to 5000 eV'. Together they form a unique fingerprint.

  • Cite this