Influence of photon energy on the distribution function of thermalized photoelectrons created by VUV or /spl gamma/-rays irradiation of some non polar dielectric liquids

A semi-empirical method is tested to determine the spatial distribution function of the thermalized photoelectrons, created by VUV or /spl gamma/-irradiation of some liquid alkanes. It seems that modified exponentials must be associated to the thermalization process on VUV irradiation. A Gaussian distribution function must be used for high-energy irradiation. The partial inadequacy of the method with high energy irradiation, can be imputed to the existence of multiple ion pair recombinations.