Author/Authors :
Sanguanmith، نويسنده , , S. and Muroya، نويسنده , , Y. and Meesungnoen، نويسنده , , J. and Lin، نويسنده , , M. and Katsumura، نويسنده , , Y. and Mirsaleh Kohan، نويسنده , , L. and Guzonas، نويسنده , , D.A. and Stuart، نويسنده , , C.R. and Jay-Gerin، نويسنده , , J.-P.، نويسنده ,
Abstract :
Our Monte-Carlo modeling of the high-temperature radiolysis of water by low-LET radiation was re-examined in an attempt to reconcile our computed g-values of the various radiolytic products ( e aq - , OH, H, H2, and H2O2) with recently re-assessed experimental data up to 350 °C. The inclusion in our simulations of the abrupt drop in the rate constant for the self-reaction of e aq - above 150 °C led us to re-evaluate the temperature dependence of certain parameters intervening in the physicochemical stage of the radiolysis. A very good agreement was found between model and experiment. The importance of the reaction of H atoms with water in the unexplained yield of H2 above 200 °C was also briefly discussed.
