Estimation of Yields of OH Radicals in Water Irradiated by Ionizing Radiation

• DOI: 10.1269/jrr.46.333
• Publication Date: 2005-10-06T05:55:58Z
• Authors: Hiroshi YAMAGUCHI; Yukio UCHIHORI; Nakahiro YASUDA; Masashi TAKADA; Hisashi KITAMURA
• Keywords: Microsecond; Secondary electrons; Radiation chemistry

The yield of OH radical induced by ionizing radiation was estimated an empirical model; a prescribed diffusion model for spur single size applying to neutral water. Two representative distances were introduced, one incident primary charged particle and secondary electron, calculate chemical yields among active species in spur. total from the track combination these yields. coefficients this parameters present model. Based on optimization existing experimental Fricke G-values, estimates at microsecond timescale after irradiation, unified manner electrons heavy ions. predicted around nanosecond irradiation may be relevant basis study mechanisms effects. This prediction exemplified electrons, photons ions (proton, helium, carbon, neon, argon iron).