1Biomedical Engineering, Lund University, PO Box 118, 221 00 Lund, Sweden
2Physical Chemistry, Lund University, Lund, Sweden
3Chemistry, University of Bari “Aldo Moro”, Bari, Italy
4CSGI, Sesto Fiorentino, Italy
5Institut Laue-Langevin, Grenoble, France
6Paul Scherrer Institute (PSI), Villigen, Switzerland