Abstract
In radiolysis of water, hydrated electrons and OH radicals are produced as the transient reactive species. They react quickly with solute molecules and corresponding products are formed. In biological system organic polymers and DNA molecules are damaged. Therefore, the understanding of water radiolysis is inevitably important to evaluate the radiation effects in living system. It is also significantly dependent on LET of radiation and, thus, related to RBE and OER.
In the present lecture, (1) time and spatial dependence of water radiolysis, (2) behaviors of radiation induced transient species such as OH radical and hydrated electrons, (3) LET dependence of the radiolysis, and (4) direct effects and indirect effects would be presented together with recent experimental and theoretical results.
