Modelling single positron tracks in Ar

R McEachran, J P Sullivan, S Buckman, Michael Brunger, M Fuss, A Munoz, Francisco Blanco, Ronald White, Zoran Petrovic, P Limao-Vieira, Gustavo Garcia

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    Abstract

    In this study, we present a complete set of positron interaction cross sections for scattering from Ar, for incident energies ranging from 0 to 10 keV. Experimental data have been critically reviewed from previous experiments performed at the Australian National University and University College London. Differential and integral cross sections, including the effect of positronium formation, have been calculated by using two different optical potential methods. The results of these calculations, in combination with experimental cross sections and experimental energy-loss spectra, have been established as input parameters for an event-by-event Monte Carlo simulation procedure to generate single positron tracks in argon. The reliability of this method to obtain energy deposition models at the nano-scale is also discussed.

    Original languageEnglish
    Article number045207
    Pages (from-to)045207-1-045207-8
    Number of pages8
    JournalJournal of Physics B-Atomic Molecular and Optical Physics
    Volume45
    Issue number4
    DOIs
    Publication statusPublished - 2012

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    McEachran, R., Sullivan, J. P., Buckman, S., Brunger, M., Fuss, M., Munoz, A., Blanco, F., White, R., Petrovic, Z., Limao-Vieira, P., & Garcia, G. (2012). Modelling single positron tracks in Ar. Journal of Physics B-Atomic Molecular and Optical Physics, 45(4), 045207-1-045207-8. [045207]. https://doi.org/10.1088/0953-4075/45/4/045207