PSI Scientific Report 2008 Published by Paul Scherrer Institute Editor Paul Piwnicki English language editing Trevor Dury Coordination Evelyne Gisler Design and Layout Monika BlÊtry Photographs Š Paul Scherrer Institute Printing Ostschweiz Druck AG, Wittenbach Available from Paul Scherrer Institute Communications Services 5232 Villigen PSI, Switzerland Phone +41 (0)56 310 21 11 www.psi.ch PSI public relations pubrel@psi.ch Communications officer Dagmar Baroke ISSN 1662-1719 Copying is welcomed, provided the source is acknowledged and an archive copy sent to PSI. Paul Scherrer Institute, April 2009