Fig. 8.

Shown H460 (a and b) relative lethal lesions per cell as a function of dose for different LETs. The relative lethal lesions, $\overline{L}\left({\mathrm{LET}}_d\right)/\overline{L}({\mathrm{LET}}_d=0.9)$, were calculated using 3D global fitting of the experimental cell survival data within LQ model. It represents $\overline{L}\left({\mathrm{LET}}_d\right)$, normalized by the lethal lesions at the lowest LET, $\overline{L}({\mathrm{LET}}_d=0.9)$. For a better visualization of relative lethal lesions in low LETs, a magnified version of (a) is shown in (b).