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Article
Absolute Doubly Differential Single-Ionization Cross Sections in p+He Collisions
Physical Review A - Atomic, Molecular, and Optical Physics
  • Michael Schulz, Missouri University of Science and Technology
  • Tibor Vajnai
  • A. D. Gaus
  • W. T. Htwe
  • Don H. Madison, Missouri University of Science and Technology
  • Ronald E. Olson, Missouri University of Science and Technology
Abstract

We have measured and calculated doubly differential single-ionization cross sections for 50-150-keV p + He collisions as a function of the projectile energy loss and scattering angle. The measured cross sections were put on an absolute scale by normalizing the integrated cross sections to known total cross sections. Clear effects of the postcollision interaction (PCI) were observed in the scattered projectile spectra. Our singly differential cross sections as a function of projectile energy loss do not agree with corresponding cross sections obtained from electron spectroscopy. These discrepancies are attributed to the PCI. Our calculations including the PCI reproduce the shape of our data quite well; however, there are discrepancies in the absolute magnitude.

Department(s)
Physics
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1996 American Physical Society (APS), All rights reserved.
Publication Date
10-1-1996
Disciplines
Citation Information
Michael Schulz, Tibor Vajnai, A. D. Gaus, W. T. Htwe, et al.. "Absolute Doubly Differential Single-Ionization Cross Sections in p+He Collisions" Physical Review A - Atomic, Molecular, and Optical Physics Vol. 54 Iss. 4 (1996) p. 2951 - 2961 ISSN: 1050-2947
Available at: http://works.bepress.com/ronald-olson/2/