Experimental and theoretical investigation of the triple differential cross section for electron impact ionization of pyrimidine molecules

J D Builth-Williams; S M Bellm; D B Jones; H Chaluvadi; D H Madison; C G Ning; Birgit Lohmann; M J Brunger

doi:10.1063/1.3675167

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Experimental and theoretical investigation of the triple differential cross section for electron impact ionization of pyrimidine molecules

Journal article

Open access

Peer reviewed

Experimental and theoretical investigation of the triple differential cross section for electron impact ionization of pyrimidine molecules

J D Builth-Williams, S M Bellm, D B Jones, H Chaluvadi, D H Madison, C G Ning, Birgit Lohmann and M J Brunger

Journal of Chemical Physics, Vol.136(2), 024304

2012

DOI: https://doi.org/10.1063/1.3675167

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Abstract

electron

ionization

pyrimidine molecules

Cross-section data for electron impact induced ionization of bio-molecules are important for modelling the deposition of energy within a biological medium and for gaining knowledge of electron driven processes at the molecular level. Triply differential cross sections have been measured for the electron impact ionization of the outer valence 7b2 and 10a1 orbitals of pyrimidine, using the (e, 2e) technique. The measurements have been performed with coplanar asymmetric kinematics, at an incident electron energy of 250 eV and ejected electron energy of 20 eV, for scattered electron angles of −5°, −10°, and −15°. The ejected electron angular range encompasses both the binary and recoil peaks in the triple differential cross section. Corresponding theoretical calculations have been performed using the molecular 3-body distorted wave model and are in reasonably good agreement with the present experiment.

Details

Title: Experimental and theoretical investigation of the triple differential cross section for electron impact ionization of pyrimidine molecules
Authors: J D Builth-Williams (Author) - Flinders University
S M Bellm (Author) - Flinders University
D B Jones (Author) - Flinders University
H Chaluvadi (Author) - Missouri University of Science and Technology
D H Madison (Author) - Missouri University of Science and Technology
C G Ning (Author) - Tsinghua University
Birgit Lohmann (Author) - University of the Sunshine Coast
M J Brunger (Author) - Flinders University
Publication details: Journal of Chemical Physics, Vol.136(2), 024304
Publisher: American Institute of Physics
Date published: 2012
DOI: 10.1063/1.3675167
ISSN: 0021-9606
Copyright note: Copyright © 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Chemical Physics and may be found at http://dx.doi.org/10.1063/1.3675167
Organisation Unit: Office of the Deputy Vice-Chancellor (Academic); University of the Sunshine Coast, Queensland; Thompson Institute
Language: English
Record Identifier: 99449466202621
Output Type: Journal article

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