High dose implantation of Eu into α-Fe

Abstract At the UNILAC injector at GSI 151Eu was implanted into an α-Fe foil [8]. According to our simulation code of the energy loss of the implanted ions an energy of 1.5 MeV was chosen to minimize the sputter yield during implantation and to produce the highest possible Eu concentration near the surface of the sample. After the irradiation with a dose of 3.6 · 1017 Eu/cm2 the implantation profile should reach its maximum of 8 at. % Eu at the surface of the sample and its width should be 1700 A.