Hydrogen interaction with radiation defects of Fe and Mo

With the hope of the positron annihilation method the interaction of the hydrogen with the radiation defects of the iron and molybdenum samples, irradiated by fast neutrons are investigated. One stage of the hydrogen release in molybdenum and two in iron was observed during the annealing of the electrolytically charged samples. Hydrogen binding energies with the microvoids were calculated. On the base of the calculated positrons trapping rates the role of the dislocations as the hydrogen trapping centers are discussed. 8 refs.; 2 figs. (author)