Self-consistency of the electron-THF cross sections using electron swarm techniques

M. J. E. Casey, J de Urquijo, L. N. Serkovic Loli, Daniel Cocks, G. J. Boyle, Darryl Jones, Michael Brunger, R. D. White

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    Abstract

    The drift velocity and first Townsend ionization coefficient of electrons in gaseous tetrahydrofuran are measured over the range of reduced electric fields 4-1000 Td using a pulsed-Townsend technique. The measured drift velocities and Townsend ionization coefficients are subsequently used, in conjunction with a multi-term Boltzmann equation analysis, as a further discriminative assessment on the accuracy and completeness of a recently proposed set of electron-THF vapor cross sections. In addition, the sensitivity of the transport coefficients to uncertainties in the existing cross sections is presented. As a result of that analysis, a refinement of the momentum transfer cross section for electron-THF scattering is presented, along with modifications to the neutral dissociation and dissociative electron attachment cross sections. With these changes to the cross section database, we find relatively good self-consistency between the measured and simulated drift velocities and Townsend coefficients.

    Original languageEnglish
    Article number195103
    Pages (from-to)Art: 195103
    Number of pages17
    JournalJournal of Chemical Physics
    Volume147
    Issue number19
    DOIs
    Publication statusPublished - 2017

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    Casey, M. J. E., de Urquijo, J., Serkovic Loli, L. N., Cocks, D., Boyle, G. J., Jones, D., Brunger, M., & White, R. D. (2017). Self-consistency of the electron-THF cross sections using electron swarm techniques. Journal of Chemical Physics, 147(19), Art: 195103. [195103]. https://doi.org/10.1063/1.5004717