1. Stanford Synchrotron Radiation Laboratory, P.O. Box 20450, Stanford, CA 94309, USA and Fysikum, AlbaNova University Center, Stockholm University, S-106 91 Stockholm, Sweden
2. Berliner Elektronenspeicherring-Gesellschaft für Synchrotronstrahlung, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
3. Stanford Synchrotron Radiation Laboratory
4. Fysikum, AlbaNova University Center
5. Department of Chemistry, IFM, Linköping University, S-58183 Linköping, Sweden
6. Swiss Norwegian Beamlines, European Synchrotron Radiation Facility, 6 rue J. Horowitz-BP220, F-38043 Grenoble, France