Conference Proceedings Paper
Density dependence of the spur lifetime and the "escape" hydrated electron yield in the low-LET radiolysis of supercritical water at 400 oC
36th Annual CNS-CNA Student Conference - 2012 June 12
Sunuchakan Sanguanmith (Université de Sherbrooke )
Jintana Meesungnoen (Université de Sherbrooke )
Jean-Paul Jay-Gerin (Université de Sherbrooke )
The “spur lifetime” (tau/s) in the low-LET radiolysis of supercritical water (SCW) at 400 °C has been determined as a function of density by using a simple model of energy deposition initially in spurs, followed by the random diffusion of the species formed until spur expansion is complete. The values of tau/s are found to decrease from ~5.0 × 10-6 to ~5.0 × 10-8 s over the density range 0.15 to 0.6 g/cm3. Using Monte-Carlo simulations, our calculated density dependence of the “escape” hydrated electron (e-aq) yield (i.e., at time tau/s) reproduces fairly well Bartels and co-workers’ scavenged e-aq yield data, strongly suggesting that these data may have been measured at time close to tau/s.
Individual Conference-Paper Copies (Electronic Where Available):
- For CNS members, the first 5 copies per calendar year are free, and additional copies are $10 each.
- For non-members, the price is $25 for the first Conference-paper copy in a request, and $10 each for additional copies of papers in the same conference and in the same request.
- Contact the CNS office to order reprints.