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Cross-sections for the direct and dissociative ionization of NH3by electron impact

Authors
Journal
International Journal of Mass Spectrometry and Ion Physics
0020-7381
Publisher
Elsevier
Publication Date
Volume
24
Issue
2
Identifiers
DOI: 10.1016/0020-7381(77)80025-9

Abstract

Abstract Ionization efficiency curves have been measured for the production of NH 3 +, NH 2 + and NH + from NH 3 by electrons having energies up to 300 eV. When the results are normalized to a recent semi-empirical total ionization cross-section calculation by Jain and Khare, there is serious disagreement both in the shapes and absolute values of the cross-sections compared with those reported by Gomet. Arguments are put forward which suggest that the present results are to be preferred.

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