The diffusion of donor elements in fine-grained and coarse-grained polycrystalline material was studied at temperatures ranging from 900 to 1150C. Tracers (74[73]As) were used to determine the concentration/depth profiles via sectioning. By means of autoradiography, the lateral distribution of the radiotracers over the sample surface was revealed.

F.H.M.Spit, H.Bakker: Physica Status Solidi A, 1986, 97[1], 135-42