1. Institute of Materials Science, University of Technology Dresden, 01062 Dresden, Germany
2. Opterra Zement GmbH, Plant Karsdorf, 06638 Karsdorf, Germany
3. Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR, Bautzner Landstrasse 400, 01328 Dresden, Germany
4. The Henryk Niewodniczanski Institute of Nuclear Physics (IFJ PAN), Polish Academy of Sciences, 31-342 Kraków, Poland