Energy release in Be, C and W due to irradiation with D and T atoms

The distribution of the energy release over the depth of the material was calculated for hydrogen isotopes bombarding beryllium, carbon and tungsten surfaces. It was shown that for energies less than 50 keV the maximum energy release occurs near the surface. The distribution of the energy release over depth was calculated for the energy spectra of neutral particles typical for the ITER tokamak-reactor. Obtained data makes it possible to estimate the heating of the near-surface layers when the walls are bombarded by atoms leaving the plasma. The accumulation of tritium in the surface layers is predicted.