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Photoabsorption and Compton scattering in ionization of helium at high photon energies [electronic resource].

Published
Arlington, Va. : National Science Foundation (U.S.), 1993.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
8 pages : digital, PDF file
Additional Creators
Oak Ridge National Laboratory, National Science Foundation (U.S.), and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Production of singly and doubly charged helium ions by impact of keV photons is studied. The ratio R{sub ph} = σ{sub ph}{sup ++}/σ{sub ph}⁺ for photoabsorption is calculated in the photon-energy range 2--18 keV using correlated initial- and final- state wave functions. Extrapolation towards asymptotic photon energies yields R{sub ph}(ω → ∞) = 1.66% in agreement with previous predictions. Ionization due to Compton scattering, which becomes comparable to photoabsorption above ω ∼ 3 keV, is discussed.
Report Numbers
E 1.99:conf-930711--12
conf-930711--12
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
10/01/1993.
"conf-930711--12"
"DE94000380"
18. international conference on the physics of electronic and atomic collisions,Aarhus (Denmark),21-27 Jul 1993.
Burgdoerfer, J.; Andersson, L.R.
Funding Information
AC05-84OR21400
View MARC record | catkey: 13806071