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Electron impact calculations of total elastic cross sections over a wide energy range – 0.01 eV to 2 keV for CH4, SiH4 and H2O

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Abstract.

In this paper we report the results of a new theoretical methodology for determining the total elastic electron scattering cross section, Q el , over a wide range of incident energies between 0.01 eV and 2 keV. We have combined results from the UK molecular R-matrix code using Quantemol-N software to determine Q el for incident energies between 0.01 eV and the ionization threshold of the target with calculations based on the spherical complex optical potential formalism for higher energies up to 2 keV. We present results for three selected molecular targets; CH4, SiH4 and H2O as exemplars of the methodology. The present results were found to be in good agreement with previous experimental and theoretical results. The total elastic cross sections for such a wide energy range are reported perhaps for the first time.

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Authors and Affiliations

  1. V.P. and R.P.T.P. Science College, 388120, Vallabh Vidyanagar, Gujarat, India

    M. Vinodkumar

  2. P.S. Science College, 382715, Kadi, Gujarat, India

    C. G. Limbachiya

  3. Department of Physics, S.P. University, 388120, Vallabh Vidyanagar, Gujarat, India

    K. N. Joshipura

  4. Department of Physics and Astronomy, Open University, Milton Keynes, MK7 6AA, UK

    N. J. Mason

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  1. M. Vinodkumar
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  2. C. G. Limbachiya
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  3. K. N. Joshipura
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  4. N. J. Mason
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Correspondence to M. Vinodkumar.

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Vinodkumar, M., Limbachiya, C., Joshipura, K. et al. Electron impact calculations of total elastic cross sections over a wide energy range – 0.01 eV to 2 keV for CH4, SiH4 and H2O. Eur. Phys. J. D 61, 579–585 (2011). https://doi.org/10.1140/epjd/e2010-10368-7

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  • DOI: https://doi.org/10.1140/epjd/e2010-10368-7

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