EFFECT OF RADIATION ON CHEMICAL FORMS OF IODINE SPECIES IN RELATION TO NUCLEAR-REACTOR ACCIDENTS

In this study the effect of radiation on chemical iodine forms was examined by the product analyses and pulse radiolysis experiments in relation to nuclear reactor accidents. It was found that a subtle balance between oxidation and reduction of iodine species is attained after relatively small doses of radiation and that hydrogen peroxide produced by radiolysis was found to play an important role in attaining this balance of the oxidation and reduction reactions. The rate constants of some relevant reactions were measured by pulse radiolysis.