Particle species dependence of cell survival RBE: Evident and not negligible

Figures & data

Figure 1. RBE₁₀ vs. LET for He (red circles), carbon (blue triangles) and neon (green squares) ions for V79 cells as investigated in [1] along with three individual linear fit lines and boundaries of 95% confidence intervals of the mean values.

Table I. Offset and slope parameters for the linear fits to He, C and Ne ion data as shown in Figure 1 and RBE₁₀ values for an LET of 70 keV/μm. Uncertainty indications are standard errors and 95% confidence intervals of the fit parameters and standard deviations of the residuals for the RBE values.

	Offset	Slope (μm/keV)	RBE10 at 70 keV/μm
He	0.68 ± 0.11 [0.453; 0.900]	0.038 ± 0.002 [0.0341; 0.0418]	3.33 ± 0.25
C	0.73 ± 0.11 [0.502; 0.947]	0.031 ± 0.002 [0.0265; 0.0348]	2.87 ± 0.26
Ne	0.98 ± 0.23 [0.435; 1.533]	0.019 ± 0.003 [0.0107; 0.0262]	2.28 ± 0.20