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Electron impact ionization cross sections of beryllium and beryllium hydrides

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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.

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Authors and Affiliations

  1. Institute of Ion Physics and Applied Physics, University of Innsbruck, Innsbruck, Austria

    Thana Maihom, Tilmann Märk, Alexander Kaiser & Michael Probst

  2. Chemistry Department and Center for Advanced Studies in Nanotechnology and Its Applications in Chemical, Food and Agricultural Industries, Kasetsart University, 10900, Bangkok, Thailand

    Thana Maihom & Jumras Limtrakul

  3. Department of Nuclear Physics and Biophysics, FMFI UK, Mlynská dolina F1, 84248, Bratislava, Slovakia

    Ivan Sukuba, Jan Urban & Pavel Mach

  4. Institute of Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich GmbH, Association EURATOM-FZJ, Trilateral Euregio Cluster, 52425, Jülich, Germany

    Ratko Janev

  5. Department of Applied Physics, Polytechnic Institute of New York University, Brooklyn, 11201, NY, USA

    Kurt Becker

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  1. Thana Maihom
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  2. Ivan Sukuba
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  3. Ratko Janev
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  4. Kurt Becker
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  5. Tilmann Märk
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  7. Jumras Limtrakul
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  8. Jan Urban
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  9. Pavel Mach
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  10. Michael Probst
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Correspondence to Michael Probst.

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Maihom, T., Sukuba, I., Janev, R. et al. Electron impact ionization cross sections of beryllium and beryllium hydrides. Eur. Phys. J. D 67, 2 (2013). https://doi.org/10.1140/epjd/e2012-30691-1

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  • DOI: https://doi.org/10.1140/epjd/e2012-30691-1

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