1. Canadian Neutron Beam Centre, National Research Council, Chalk River, Ontario K0J 1J0, Canada
2. Department of Physical Chemistry of Drugs, Comenius University, 835 35 Bratislava, Slovakia
3. Department of Physics, Brock University, St. Catherines, Ontario L2S 3A1, Canada
4. Department of Physics, Indiana University−Purdue University Indianapolis, Indianapolis, Indiana 46202
5. Groningen Biomolecular Sciences and Biotechnology Institute and Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands
6. Guelph-Waterloo Physics Institute and Biophysics Interdepartmental Group and Department of Physics, University of Guelph, Guelph, Ontario N1G 2W1, Canada