| Abstract: | Conclusion A series of peaks of liberation of deuterium gas from molybdenum has been discovered in this paper upon the heating of a sample after ion penetration. The maxima of these peaks lie, in the 230–650°K range. The diffusion coefficient and the activation energy in the individual peaks of j(T) have been measured. It has been discovered that D in the individual peaks covers a range of at least 10 orders of magnitude when the temperature is constant, and the discrete activation energy series comprises 45–126 kJ/mole. The measured values of D and Q can be larger or smaller than those which are measured in experiments on hydrogen transport. At high irradiation doses an interrelationship has been discovered in the first group of peaks between secondary defects in molybdenum and the liberation of captured deuterium gas. It is suggested that secondary defects can serve, in different cases both as centers for deuterium retention and as the means for its easier escape to the surface. It has been assumed possible to explain the high-temperature peaks as the release of deuterium from radiation vacancy-deuterium atom complexes with a different content of vacancies and deuterons.Translated from Atomnaya Énergiya, Vol. 51, No. 1, pp. 31–34, July, 1981. |
