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. 2018 Jun 27;13:121. doi: 10.1186/s13014-018-1065-3

Fig. 1.

Fig. 1

Ratios to the unrestricted stopping power in water, Sel(E)w, of the LET LΔ(E) (solid lines), and of the restricted stopping power Sel(E,Δ) (dashed lines), for different values of Δ, as a function of the incident electron kinetic energy. Adapted from ref. [3] using data from ref. [60]