## 5 Changes in Section 3.1.2 Alkaline Aqueous Solution  
In paragraph 1, the sentences \"In comparison with neutral water, radiolysis of alkaline solution results in lower steady-state concentrations of H\({}_{2}\)O\({}_{2}\), O\({}_{2}\), HO\({}_{2}\)\({}^{\bullet}\), H\({}_{2}\), H\({}^{\bullet}\), and O\({}_{2}\)\({}^{\bullet-}\) but in the higher concentrations of e\({}_{\text{a}}\)\({}^{\bullet-}\), \({}^{\bullet}\)OH, and HO\({}_{2}\)\({}^{-}\). Figure 3 presents how the addition of base alters the steady-state concentrations of O\({}_{2}\), H\({}_{2}\)O\({}_{2}\), \({}^{\bullet}\)OH, and HO\({}_{2}\)\({}^{\bullet}\) in the mixed gamma-neutron radiolysis. Simulations were performed for fraction of \(\gamma\) rays varying from \(f_{\text{g}}=0\) (high LET neutron radiolysis) to \(f_{\text{g}}=1\) (low-LET gamma radiolysis).\" should be changed to \"Figure 3 presents how the addition of base alters the steady state concentrations of O\({}_{2}\), H\({}_{2}\)O\({}_{2}\), \({}^{\bullet}\)OH and HO\({}_{2}\)\({}^{\bullet}\) in the mixed gamma-neutron radiolysis. Figure 1: Concentration profiles of the radiolytic species calculated for neutral deaerated water exposed to (**a**) gamma and (**b**) fast neutron radiation at 300 \({}^{\circ}\)C and dose rate 1 kGy\(\cdot\)s\({}^{-1}\). Figure 2: The simulated steady state concentrations of oxidants formed in neutral water vs. fraction of \(\gamma\)-rays (\(f_{\text{g}}\)) in the mixed gamma-fast neutron radiation: solid lines indicate dose rate of 1 kGy\(\cdot\)s\({}^{-1}\); dashed + symbol indicates 10 kGy\(\cdot\)s\({}^{-1}\). Simulations have been performed for fraction of \(\gamma\)-rays varying from \(f_{\rm g}=0\) (high LET neutron radiolysis) to \(f_{\rm g}=1\) (low-LET gamma radiolysis).\"  
In the original publication, there was a mistake in Figure 3 as published. The correct Figure 3 appears below:  
Paragraphs 2 and 3, \"In the alkaline solution, the steady-state concentration of stable oxidants is significantly reduced. A change in O\({}_{2}\) concentration is more pronounced at the dose rate 1 kGy\(\cdot\)s\({}^{-1}\) and develops with increasing\(f_{\rm g}\). Simulation shows the decrease by 60% and 85%, respectively, for fast neutron (\(f_{\rm g}=0\)) and gamma (\(f_{\rm g}=1\)) radiolysis at 1 kGy\(\cdot\)s\({}^{-1}\), compared to 32% (\(f_{\rm g}=0\)) and 74% (\(f_{\rm g}=1\)) at 10 kGy\(\cdot\)s\({}^{-1}\). In contrast to O\({}_{2}\), the decrease in the concentration of H\({}_{2}\)O\({}_{2}\) is not very sensitive to either radiation composition or dose rate. At a smaller dose rate, the amount of H\({}_{2}\)O\({}_{2}\) drops by 81%. At 10 kGy\(\cdot\)s\({}^{-1}\), decreases by 73% and 77% were obtained for \(f_{\rm g}=0\) and \(f_{\rm g}=1\), respectively.\" and \"Steady-state concentrations of HO\({}_{2}\)\({}^{\bullet}\) and \({}^{\bullet}\)OH are less sensitive to the addition of base. At 1 kGy\(\cdot\)s\({}^{-1}\), a decrease in [HO\({}_{2}\)\({}^{\bullet}\)] but an increase in [\({}^{\bullet}\)OH] by 25% and 50% were obtained for \(f_{\rm g}=0\) and \(f_{\rm g}=1\), respectively. Taking into account that the concentration \({}^{\bullet}\)OH is by several orders of magnitude lower, the overall number of oxidants in the alkaline solution is greatly diminished.\" should be changed to \"In alkaline solution, the steady-state concentration of HO\({}_{2}\)\({}^{\bullet}\) is significantly reduced, irrespective of the dose rate and radiation composition. The influence of these factors is seen, however, in the case of O\({}_{2}\), H\({}_{2}\)O\({}_{2}\), and \({}^{\bullet}\)OH. Simulation shows that at a small fraction of gamma radiation, base addition may decrease the amount of \({}^{\bullet}\)OH and increase concentration of the stable oxidants (O\({}_{2}\) and H\({}_{2}\)O\({}_{2}\)). This negative effect of base addition is less pronounced at 1 kGy\(\cdot\)s\({}^{-1}\)\({}^{\
u}\).