Table 1 Calculation of survival parameters based on proliferation assay using the equation $\mathbf{\text{Survival}}=\mathbf{E}\mathbf{x}\mathbf{p}\left(-\alpha Dose-\beta Dos{e}^2\right)$

A. Survival parameters for 293Art Artemis over-expressing Cells

Radiation Type

α, Gy ⁻¹

β, Gy ⁻²

D ₃₇ , Gy

Fold

293Art/HEK293c

X-rays

–

0.057 ± 0.002

4.21 ± 0.087

1.7

Titanium^a

0.47 ± 0.02

0.034 ± 0.008

1.86 ± 0.024

2.2

Iron^b

0.065 ± 0.007

2.59 ± 0.074

3.0

B. Survival parameters for 293 Wild type Cells

Radiation Type

α, Gy ⁻¹

β, Gy ⁻²

D ₃₇ , Gy

X-rays

0.287 ± 0.033

0.048 ± 0.006

Titanium^a

0.025 ± 0.044

–

Iron^b

1.11 ± 0.29

0.086 ± 0.075

0.85 + 0.15