1. Swiss Light Source, Paul Scherrer Institute (PSI), CH-5232 Villigen, Switzerland
2. Institute of Physics, Jan Kochanowski University, PL-25-406 Kielce, Poland
3. Department of Mathematics and Physics, Kielce University of Technology, PL-25-314 Kielce, Poland
4. Institute of Nuclear Physics Polish Academy of Science, PL-31-342 Kraków, Poland
5. Department of Physics, University of Fribourg, CH-1700 Fribourg, Switzerland
6. PETRA, Deutsches Elektronen-Synchrotron (DESY), DE-22607 Hamburg, Germany