MODELING OF PRIMARY CHEMICAL PROCESSES OF WATER RADIOLYSIS AND SIMULATION BY SPUR DIFFUSION-MODEL

Chlorite ion is selected as a solute reactive toward e(aq)(-) and OH. Experimentally observed G(ClO2) is reproduced by the conventional spur diffusion model in even concentrated region without considering any r eactions within 10(-12)s. For the solutes reactive toward the quasi-fr ee electron, an extended spur diffusion model including in sub-picosec ond time range is proposed by taking account of the experimental data of picosecond pulse radiolysis, femtosecond laser photolysis and posit ronium formation. The formation mechanism of H-2 in sub-picosecond tim e range is proposed. The simulated results are compared with correspon ding experimental data. Copyright (C) 1996 Elsevier Science Ltd