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Sanguanmith, S.*; Muroya, Yusa*; Meesungnoen, J.*; Lin, M.; Katsumura, Yosuke*; Mirsaleh Kohan, L.*; Guzonas, D. A.*; Stuart, C. R.*; Jay-Gerin, J.-P.*
Chemical Physics Letters, 508(4-6), p.224 - 230, 2011/05
Times Cited Count:42 Percentile:82.12(Chemistry, Physical)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 -values of the various radiolytic products with recently re-assessed experimental data up to 350C. The inclusion in our simulations of the abrupt drop in the rate constant for the self-reaction of hydrated electron above 150C 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 H above 200C was also briefly discussed.
Sanguanmith, S.*; Muroya, Yusa*; Meesungnoen, J.*; Lin, M.; Katsumura, Yosuke*; Mirsaleh Kohan, L.*; Guzonas, D. A.*; Stuart, C. R.*; Jay-Gerin, J.-P.*
Proceedings of 5th International Symposium on Supercritical Water-Cooled Reactors (ISSCWR-5) (CD-ROM), 13 Pages, 2011/03
A re-examination of our Monte-Carlo modeling of the high-temperature radiolysis of liquid water by low linear energy transfer (LET 0.3 keV/m) radiation was undertaken in an attempt to reconcile our computed g-values of the various radiolytic products with newly measured or recently re-assessed experimental data over the range from 25 up to 350C. Using a global-fit procedure, experimental data were found to be best reproduced when a discontinuity in the temperature dependence of certain physicochemical parameters was introduced at 100-150C. The presence of such a discontinuity was hypothesized to be associated with a change in the liquid structure of water around these temperatures. In addition to the physicochemical factors intervening in the radiolysis, the importance of the reaction of H atoms with water in contributing to the unexplained yield of H above 200C was also investigated.
J.W.Kwan*; G.D.Ackerman*; C.F.Chan*; W.S.Cooper*; G.J.de-Vries*; W.F.Steele*; Stuart, M. E.*; M.C.Vella*; Wells, R. P.*; Inoue, Takashi; et al.
Review of Scientific Instruments, 66(7), p.3864 - 3868, 1995/07
Times Cited Count:8 Percentile:59.62(Instruments & Instrumentation)no abstracts in English