Picosecond pulse radiolysis study on primary processes of radiolysis of water at elevated temperature up to supercritical condition

Muroya, Yusa*; Lin, M.; Han, Z.*; Yamashita, Shinichi; Ueda, Toru*; Mostafavi, M.*; Katsumura, Yosuke

By employing a newly developed high temperature - ultrafast pulse radiolysis system, temperature dependence of spur decay kinetics of the hydrated electron from room temperature up to supercritical condition was successfully measured. Faster spur decay within a few nanosecond was observed as increasing temperature. Picosecond yield of the hydrated electron at supercritical condition was also evaluated. The initial yield was found to show strongly density dependence of water.