Characteristics study on suspended fine particles in aqueous phenol solution formed by electron beam irradiations

The suspended fine particles formed in aqueous phenol solution under high-dose irradiation were studied using the MeV electron beam and 60Co γ-ray irradiations. The fine particle's size was 100-800 nm in diameter and became bigger at higher and lower dose rates. The distributions of the particle size became narrower for irradiation at higher dose rate. The fine particles were regarded to consist of molecules of about 1.9×102 molecular weight.