Single ionization of helium by 102 eV electron impact: three-dimensional images for electron emission

M. Dürr; C. Dimopoulou; A. Dorn; B. Najjari; I. Bray; D.V. Fursa; Z. Chen; D.H. Madison; Kn Bartschat; Jn Ullrich

doi:10.1088/0953-4075/39/20/008

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Single ionization of helium by 102 eV electron impact: three-dimensional images for electron emission

Journal article

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Peer reviewed

Single ionization of helium by 102 eV electron impact: three-dimensional images for electron emission

M. Dürr, C. Dimopoulou, A. Dorn, B. Najjari, I. Bray, D.V. Fursa, Z. Chen, D.H. Madison, Kn Bartschat and Jn Ullrich

Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.39(20), pp.4097-4111

2006

DOI: https://doi.org/10.1088/0953-4075/39/20/008

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Abstract

Single ionization of helium by 102 eV electron impact has been studied by measuring the momentum vectors of all final-state particles, i.e., two electrons and the He + ion, with an advanced reaction microscope. Fully differential cross sections for asymmetric scattering geometry, which have been normalized to an absolute scale, have been obtained covering a large range of emission angles for the emitted low-energy (E ≤ 15 eV) electron and different scattering angles for the fast electron. Strong electron emission out of the projectile scattering plane is confirmed for electron impact, as was observed before for heavy-ion impact ionization. The data are compared with theoretical predictions from a three-Coulomb wavefunction model, first-order and second-order distorted-wave approaches, as well as a convergent close-coupling calculation.

Details

Title: Single ionization of helium by 102 eV electron impact: three-dimensional images for electron emission
Authors/Creators: M. Dürr (Author/Creator)
C. Dimopoulou (Author/Creator)
A. Dorn (Author/Creator)
B. Najjari (Author/Creator)
I. Bray (Author/Creator)
D.V. Fursa (Author/Creator)
Z. Chen (Author/Creator)
D.H. Madison (Author/Creator)
Kn Bartschat (Author/Creator)
Jn Ullrich (Author/Creator)
Publication Details: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.39(20), pp.4097-4111
Publisher: Institute of Physics
Identifiers: 991005540295007891
Copyright: © 2006 IOP Publishing Ltd
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.15 Physical Chemistry; 2.15.664 Dissociative Electron Attachment
Web Of Science research areas: Optics; Physics, Atomic, Molecular & Chemical
ESI research areas: Physics