Theoretical consideration of dosimetry for high energy electrons

An approach to establish general cavity theory for high-energy electron dosimetry was attempted. The mean mass stopping power ratio was given by f sub(m,e)=d sub(e).(S/rho)sub(m)sup(i) where d sub(e) was approximately estimated by using an algorithm for the energy deposition by fast electrons. The theory was applied to high-energy electron dosimetry in water by air ionization chamber, LiF-TLD and Fricke dosimeter. The absorbed dose conversion factor and the responses of these dosimeters to electrons relative to 60Co γ-rays were discussed. (auth.)