Electron-impact ionization of atomic hydrogen at incident electron energies of 15.6, 17.6, 25, and 40 eV

J.G. Childers; K.E James; M. Hughes; I. Bray; M. Baertschy; M.A. Khakoo

doi:10.1103/PhysRevA.68.030702

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Electron-impact ionization of atomic hydrogen at incident electron energies of 15.6, 17.6, 25, and 40 eV

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Electron-impact ionization of atomic hydrogen at incident electron energies of 15.6, 17.6, 25, and 40 eV

J.G. Childers, K.E James, M. Hughes, I. Bray, M. Baertschy and M.A. Khakoo

Physical Review A - Atomic, Molecular, and Optical Physics, Vol.68(3)

2003

DOI: https://doi.org/10.1103/PhysRevA.68.030702

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Abstract

Absolute doubly differential cross sections for the electron-impact ionization of atomic hydrogen have been measured from near threshold to intermediate energies. The measurements are calibrated to the well-established, accurate differential cross section for electron-impact excitation of the atomic hydrogen transition H(12S⃗22S+22P). In these experiments background secondary electrons are suppressed by moving the atomic hydrogen target source to and from the collision region. Measurements cover the incident electron energy range of 14.6–40 eV, for scattering angles of 10°–120° and are found to be in very good agreement with the results of the most advanced theoretical models—the convergent close-coupling model and the exterior complex scaling model.

Details

Title: Electron-impact ionization of atomic hydrogen at incident electron energies of 15.6, 17.6, 25, and 40 eV
Authors/Creators: J.G. Childers (Author/Creator) - California State University, Fullerton
K.E James (Author/Creator) - California State University, Fullerton
M. Hughes (Author/Creator) - California State University, Fullerton
I. Bray (Author/Creator) - Murdoch University
M. Baertschy (Author/Creator) - University of Colorado Denver
M.A. Khakoo (Author/Creator) - California State University, Fullerton
Publication Details: Physical Review A - Atomic, Molecular, and Optical Physics, Vol.68(3)
Publisher: 2010 The American Physical Society
Identifiers: 991005540651707891
Copyright: © 2003 The American Physical Society
Murdoch Affiliation: School of Mathematical and Physical Sciences
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