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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Appl Radiat Isot. 2013 Jan 18;83(0 0):10.1016/j.apradiso.2013.01.016. doi: 10.1016/j.apradiso.2013.01.016

Figure 1.

Figure 1

The calculated mean excitation energy (I-value) as a function of maximum energy transfer. Shown are total values and contributions from valence shells (excitations and outer shell ionisations) only. Asymptotic values are 78.30 eV for the I-value, and 45.7 eV for the valence contributions.