Low-energy electron and positron transport in gases and soft-condensed systems of biological relevance

White, R. D.;Tattersall, W.;Boyle, G.;Robson, R.E.;Dujko, S.;Petrovic, Z.Lj.;Bankovic, A.;Brunger, M.J.;Sullivan, J.P.;Buckman, S.J.;Garcia, G.

Greg Boyle

Abstract

We present a study of electron and positron transport in water in both the gaseous and liquid states using a Boltzmann equation analysis and a Monte-Carlo simulation technique. We assess the importance of coherent scattering processes when considering transport of electrons/positrons in dense gases and liquids. We highlight the importance of electron and positron swarm studies and experiments as a test of the accuracy and completeness of cross-sections, as well as a technique for benchmarking Monte-Carlo simulations. The thermalization of low-energy positrons (< 150 eV) in water is discussed and the sensitivity of the profiles to the form of the cross-sections in this energy region, and assumptions in the microscopic processes, is considered.

Journal

Applied Radiation and Isotopes

Publication Name

Applied Radiation and Isotopes

Volume

ISBN/ISSN

1872-9800

Edition

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Issue

Part B

Pages Count

Location

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Publisher

Elsevier

Publisher Url

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Publisher Location

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Publish Date

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Url

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Date

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EISSN

N/A

DOI

10.1016/j.apradiso.2013.01.008