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Total ionization and ionization fluctuations in helium

Authors
Journal
Physics Letters A
0375-9601
Publisher
Elsevier
Publication Date
Volume
29
Issue
1
Identifiers
DOI: 10.1016/0375-9601(69)90774-9

Abstract

Abstract The mean energy for ion production W, the Fano factor F and some other quantities inherent to electron ionization cascades in helium are computed with semi-empirical cross sections for excitation and ionization. W = 46 eV and F = 0.21 at electron energy of 2.5 keV.

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