1. Department of Chemistry, Ångström Laboratory, Uppsala University, Box 538, SE-75121 Uppsala, Sweden
2. ISIS Pulsed Neutron and Muon Source, Rutherford Appleton Laboratory, Harwell Campus, Didcot OX11 0QX, U.K.
3. Department for Neutron Materials Characterization, Institute for Energy Technology, P.O. Box 40, NO-2027 Kjeller, Norway
4. Scania CV AB, SE-151 87 Södertälje, Sweden
5. Volkswagen AG, D-38436 Wolfsburg, Germany