Table 2.

The constants for exponentially decaying fitting functions of a standard form ${\text{A}}_1{\text{e}}^{-\text{t}/{\text{B}}_1}{\text{+A}}_2{\text{e}}^{-\text{t}/{\text{B}}_2}{\text{+A}}_3{\text{e}}^{-\text{t}/{\text{B}}_3}$.

Cell line	Radiation	Constants*
		A1	B1	ln 2 $\times$ B1	A2	B2	ln 2 $\times$ B2	A3	B3
BEAS-2B	Alpha particles	0.435	7.53	5.22	0.273	3.08 $\times$ 104	2.13 $\times$ 104	0.288	4.12 $\times$ 10146
	X-rays	0.197	0.557	0.386	0.603	6.04	4.19	0.200	3.85 $\times$ 1086
SVEC4-10EHR1	Alpha particles	0.462	5.74	3.98	–	–		0.548	1.07 $\times$ 10141
	X-rays	0.628	2.27	1.57	–	–		0.383	98.1

*B_i’s and (ln 2 $\times$ B_i)’s in hr.