Ab initio electon scattering cross-sections and transport in liquid xenon

Boyle, G.J., McEachran, R.P., Cocks, D.G., Brunger, M.J., Buckman, S.J., Dujko, S., and White, R.D. (2016) Ab initio electon scattering cross-sections and transport in liquid xenon. Journal of Physics D: applied physics, 49 (35). 355201. pp. 1-9.

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Ab initio fully differential cross-sections for electron scattering in liquid xenon are developed from a solution of the Dirac–Fock scattering equations, using a recently developed framework (Boyle et al 2015 J. Chem. Phys. 142 154507) which considers multipole polarizabilities, a non-local treatment of exchange, and screening and coherent scattering effects. A multi-term solution of Boltzmann's equation accounting for the full anisotropic nature of the differential cross-section is used to calculate transport properties of excess electrons in liquid xenon. The results were found to agree to within 25% of the measured mobilities and characteristic energies over the reduced field range of 10−4–1 Td. The accuracies are comparable to those achieved in the gas phase. A simple model, informed by highly accurate gas-phase cross-sections, is presented to improve the liquid cross-sections, which was found to enhance the accuracy of the transport coefficient calculations.

Item ID: 47330
Item Type: Article (Research - C1)
ISSN: 1361-6463
Keywords: electron scattering; Boltzmann's equation; liquid xenon; pair-correlation; screening
Funders: Australian Research Council (ARC), University of Malaya (UM), MPNTRRS
Projects and Grants: ARC Discovery Program scheme, UM grant UMRP11A-12AFR, MPNTRRS Project OI171037, MPNTRRS Project III41011
Date Deposited: 17 Feb 2017 00:34
FoR Codes: 51 PHYSICAL SCIENCES > 5102 Atomic, molecular and optical physics > 510201 Atomic and molecular physics @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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