DENSITY DEPENDENCE OF THE YIELD OF eaq IN THE LOW-LET RADIOLYSIS OF SUPERCRITICAL WATER AT 400 °C: MONTE-CARLO SIMULATIONS

摘要：

The density dependence of the yield of hydrated electrons (e. aq) in the low linear energy transfer (LET) radiolysis of supercritical water (SCW) at 400 °C has been computed over the range from ~0.15 to 0.6 g/cm3 using Monte-Carlo simulations. This study was motivated by the experimental e. aq yield data obtained recently in Tokai, Japan by Muroya et al.1,2 using time-resolved picosecond electron pulse radiolysis, at ~60 ps (end of pulse) and 1 ns. Another motivation was the strong difference observed in scavenging experiments between the e. aq yields in low-density SCW measured by Janik et al.3 (corrected in a recent erratum by Haygarth et al.4) and Haygarth and Bartels5 in Notre Dame, U.S.A. (~1.5 molecules/100 eV at a density near 0.2 g/cm3) and those reported by Lin et al.6 at the University of Tokyo (~5.3 molecules/100 eV at the same density), and whose origin has not yet been explained.

作者: J.Meesungnoen S.Sanguanmith Y.Muroya M.Lin Y.Katsumura D.A.Guzonas C.R.Stuart P.Causey J.-P.Jay-Gerin

作者单位: Université de Sherbrooke,Sherbrooke,Québec,Canada University of Tokyo,Tokai,Ibaraki,Japan University of Science and Technology of China,Hefei,Anhui,China Atomic Energy of Canada Limited,Chalk River,Ontario,Canada

会议类型: 国际会议

会议名称: 3rd China-Canada Joint Workshop on Supercritical Water-Cooled Reactors(第三届中国-加拿大超临界水堆研讨会 (CCSC-2012)

会议地点: 西安

会议语种:英文

页码: 1-10

在线出版日期: 2012-04-18（万方平台首次上网日期，不代表论文的发表时间）