Fig. 6

(A) Clonogenic surviving fractions (mean ± SEM) of cells at 2 Gy (SF2) for proton setup S1 (blue) and S2 (red). (B) RBE (mean ± SEM) values for proton setup S1 (blue) and S2 (red) at surviving fractions of 0.50, 0.10, and 0.01.

(A) Clonogenic surviving fractions (mean ± SEM) of cells at 2 Gy (SF2) for proton setup S1 (blue) and S2 (red). (B) RBE (mean ± SEM) values for proton setup S1 (blue) and S2 (red) at surviving fractions of 0.50, 0.10, and 0.01.