Interaction of hydrogen with the material of the discharge chamber of Tokamak TM-4

Abstract

A new stage in the study of the interaction of hydrogen with the materials of fusion devices has been developed in recent years. At present real thermonuclear devices are used for this purpose because the model experiments on reemission, diffusion, accumulation, trapping, etc. cannot take into consideration the simultaneous action on the metal of various types of radiation: ion, electron, X-ray, light, neutron, etc. Upto the present time a number of experiments on isotope exchange have been performed on tokamaks DITE [1], TFR [2], ISX-B [3]. The results provide the possibility to evaluate the reemission kinetics of hydrogen. The present paper reports the data from experiments on recycling and accumulation of hydrogen in the wall of the tokamak TM-4 (I.V. Kurchatov Institute of Atomic Energy) during a series of shots.