FEATURES OF HYDRATED ELECTRONS FORMATION DURING RADIOLYSIS OF WATER OR IN SUPERCRITICAL WATER

The paper discusses experimental and theoretical results of studies of water radiolysis under the action of accelerated electrons, or water in a supercritical state.Two models describing the formation of a hydrated electron (HE) are proposed.One of them is a hydrogen-like model.It describes HE in water as a result of the formation of a hydrogen-like atom in a dielectric medium.The second model is a cavity model.It describes HE as a vapor sphere in water, which is characterized by capillary oscillations.It is shown that the hydrogen-like model does not describe HE, since the binding energy of HE is significantly less than the experimental one.In the cavity model, it is shown that the vibration energy of the vapor sphere corresponds to the experimental value of the binding energy of HE.