Differential ionization energy, effect

There is, in fact, an indication that effects due to differential relaxation energies upon ionization are, in this case, of minor relevance. 

Thirdly we are also interested in the electron spectroscopy method, which allows investigations on the two-center effects that influence electron emission. In particular, the richness of the ionization process lies in the possibility of measuring the doubly differential cross sections as a function of the electron emission angle and energy. This technique of electron emission spectroscopy is... 

In Fig. 15 we show the theoretical calculation of the singly differential cross section for the single ionization of He by proton impact. There are two impact energies considered here, 3 MeV and 6 MeV, and both are compared to the experimental results of Kamber et al. [6]. For both impact energies there appears a distinctive shoulder effect that takes place at 0.55 mrad in both the experimental data and the theoretical results. This has been attributed to the... 

Figure 13 Singly differential cross sections for ionization of several molecular targets by 1-MeV protons are plotted as a function of the ejected electron energy. The cross sections are scaled by the effective number of target electrons in each molecule the effective number of electrons is defined as the total number of molecular electrons minus those of the K-shell. (From Refs. 49, 56, and 58.)...

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