TABLE A1.

Reactions, and Reaction Rate Constants Added to TOPAS-nBio to Simulate the Radiolysis in the Fricke Dosimeter

Reaction	Reaction rate constant (M−1 s−1)
•OH + ${\text{HSO}}_4^{-}$ → H2O + ${\text{SO}}_4^{-}$	1.5 × 105
H + ${\text{SO}}_4^{-}$ → ${\text{HSO}}_4^{-}$	1.0 × 1010
H2O2 + ${\text{SO}}_4^{-}$ → HO2 + ${\text{HSO}}_4^{-}$	1.2 × 107
OH− + ${\text{SO}}_4^{-}$ → •OH + ${\text{SO}}_4^{2-}$	8.3 × 107
${\text{SO}}_4^{-}$ + ${\text{SO}}_4^{-}$ → ${\text{S}}_2{\text{O}}_8^{2-}$	4.4 × 108
${\text{SO}}_4^{-}$ + Fe2+ → Fe3+ + ${\text{SO}}_4^{2-}$	2.79 × 108
${\text{e}}_{\text{aq}}^{-}$ + ${\text{S}}_2{\text{O}}_8^{2-}$ → ${\text{SO}}_4^{-}$ + ${\text{SO}}_4^{2-}$	1.2 × 1010
H + ${\text{S}}_2{\text{O}}_8^{2-}$ → ${\text{SO}}_4^{-}$ + ${\text{HSO}}_4^{-}$	2.5 × 107
Fe2+ + •OH → Fe3+ + •OH−	3.4 × 108
Fe2+ + HO2 → Fe3+ + ${\text{HO}}_2^{-}$	7.9 × 105
Fe2+ + H2O2 → Fe3+ + •OH + OH−	52