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Type: Journal article
Title: A new normalization method for electron collision cross sections measured using skimmed supersonic jet beams
Author: Hargreaves, L.
Francis-Staite, J.
Maddern, T.
Brunger, M.
Buckman, S.
Citation: Measurement Science & Technology, 2007; 18(9):2783-2791
Publisher: IOP Publishing Ltd
Issue Date: 2007
ISSN: 0957-0233
Abstract: Crossed electron-molecular beam experiments featuring skimmed nozzle beams may be used to study electron interactions with species such as radicals, excited molecules and biomolecules. A new technique for placing measured cross sections on an absolute scale is reported, as the traditional relative flow method used for effusive molecular beams does not apply to skimmed supersonic jet beams. Absolute cross sections for Ar and CF₄, using this new procedure, are measured and compared to previous effusive beam results as a proof of concept.
Keywords: absolute differential cross sections; supersonic expansion; skimmed supersonic relative density method
Description: © Institute of Physics and IOP Publishing Limited 2008
RMID: 0020081337
DOI: 10.1088/0957-0233/18/9/007
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Appears in Collections:Chemistry and Physics publications

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