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Electron-impact ionization doubly differential cross sections of helium

Bray, I., Fursa, D.V. and Stelbovics, A.T. (2003) Electron-impact ionization doubly differential cross sections of helium. Journal of Physics B: Atomic, Molecular and Optical Physics, 36 (11). pp. 2211-2227.

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The convergent close-coupling (CCC) method is applied to the calculation of electron–helium ionization doubly differential cross sections (DDCSs) at low to intermediate incident energies. We re-examine the CCC calculations and measurements of Röder et al (1997 J. Phys. B: At. Mol. Opt. Phys. 30 1309–22) by making allowance for the step-function behaviour of the underlying CCC-calculated amplitudes. As done previously, the experimental DDCS were normalized at energies below 100 eV using the 100 eV CCC calculation to determine analyser properties at several secondary energies. In addition, substantially larger calculations are presented, to check the convergence. The agreement between the experiment and the calculations as a whole is much improved on the situation reported earlier.

Publication Type: Journal Article
Murdoch Affiliation: School of Mathematical and Physical Sciences
Publisher: Institute of Physics
Copyright: © 2003 IOP Publishing
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