evaporation residues leave the target foils with an angular divergence, due to scattering in the target material and due to the evaporation of particles. To focus the beam and collect particles from a solid angle [...] Heßberger, V.Ninov, H.J.Schött, A.P.Kabachenko, A.G.Popeko, A.V.Yeremin Nucl. Instr. Methods in Phys. Research A 381 (1996) 520 The Stop-detector The stop detector array consists of seven identical 16-strip