Reemission measurements of surface recombination for deuterium on nickel

The reemission of D₂ molecules during implantation of 60 keV D₃⁺ was studied with samples of polycrystalline nickel in the temperature range of 450–880 K, where recombination is the ratelimiting step of reemission. The experimental results together with computer calculations were used to evaluate surface recombination rate coefficients, which are consistent with those obtained in previous permeation measurements.The data are also discussed with respect to existing model calculations.