Electron impact ionization cross sections of beryllium and beryllium hydrides

Thana Maihom, Ivan Sukuba, Ratko Janev, Kurt Becker, Tilmann Märk, Alexander Kaiser, Jumras Limtrakul, Jan Urban, Pavel MacH, Michael Probst

Research output: Contribution to journalArticle

Abstract

We report calculated electron impact ionization cross sections (EICSs) for beryllium (Be) and some of its hydrides from the ionization threshold to 1 keV using the Deutsch-Märk (DM) and the Binary-Encounter-Bethe (BEB) formalisms. The positions of the maxima of the DM and BEB cross sections are very close in each case while the DM cross section values at the maxima are consistently higher. Our calculations for Be are in qualitative agreement with results from earlier calculations (convergent close-coupling, R matrix, distorted-wave and plane-wave Born approximation) in the low energy region. For the various beryllium hydrides, we know of no other available data. The maximum cross section values for the various compounds range from 4.0 × 10 -16 to 9.4 × 10-16 cm2 at energies of 44 to 56 eV for the DM cross sections and 3.0 × 10-16 to 5.4 × 10-16 cm2 at energies of 40.5 to 60 eV for the BEB cross sections.

Original languageEnglish (US)
Article number2
JournalEuropean Physical Journal D
Volume67
Issue number1
DOIs
StatePublished - Jan 2013

Keywords

  • Atomic and Molecular Collisions

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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