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A comparison of the theoretical and experimental results for keV electron scattering from argon

Vos, Maarten; McEachran, Robert; Zhu, Lin-Fan

Description

Experiments studying the scattering of keV electrons from noble gas atoms have been performed in the past, as the first Born approximation (FBA) was thought to be valid under these conditions, and hence it was expected that these experiments could be modelled relatively straightforwardly by theory. Somewhat surprisingly these experiments have so far attracted only very limited theoretical interest and the ability of modern scattering theory to describe them has not been firmly established. In...[Show more]

dc.contributor.authorVos, Maarten
dc.contributor.authorMcEachran, Robert
dc.contributor.authorZhu, Lin-Fan
dc.date.accessioned2015-12-08T22:48:34Z
dc.identifier.issn0953-4075
dc.identifier.urihttp://hdl.handle.net/1885/38389
dc.description.abstractExperiments studying the scattering of keV electrons from noble gas atoms have been performed in the past, as the first Born approximation (FBA) was thought to be valid under these conditions, and hence it was expected that these experiments could be modelled relatively straightforwardly by theory. Somewhat surprisingly these experiments have so far attracted only very limited theoretical interest and the ability of modern scattering theory to describe them has not been firmly established. In our earlier study of the cross section for the resonant transitions, we established that the FBA was sufficient to describe the results for small scattering angles, but it did not account for the observed intensity at larger angles. Here we extend this comparison for the case of argon to monopole, quadrupole and octopole transitions below the continuum. The experimental results show differential cross sections spanning many orders of magnitude for these transitions. The relativistic distorted wave theory developed here describes these experiments for many transitions and a large range of scattering angles reasonably well.
dc.publisherInstitute of Physics Publishing
dc.sourceJournal of Physics B: Atomic, Molecular and Optical Physics
dc.titleA comparison of the theoretical and experimental results for keV electron scattering from argon
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume47
dc.date.issued2014
local.identifier.absfor020201 - Atomic and Molecular Physics
local.identifier.ariespublicationu4860843xPUB161
local.type.statusPublished Version
local.contributor.affiliationVos, Maarten, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationMcEachran, Robert, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationZhu, Lin-Fan, University of Science and Technology of China
local.description.embargo2037-12-31
local.bibliographicCitation.issue5
local.bibliographicCitation.startpage055201
local.identifier.doi10.1088/0953-4075/47/5/055201
local.identifier.absseo970102 - Expanding Knowledge in the Physical Sciences
dc.date.updated2015-12-08T11:07:28Z
local.identifier.scopusID2-s2.0-84894537333
local.identifier.thomsonID000331949500006
CollectionsANU Research Publications

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