Institution: | a Institute of Physics, University of Mainz, Staudinger Weg 7, D-55099 Mainz, Germany b Bartol Research Institute, University of Delaware, Newark, DE 19716, USA c Department of Physics, University of Wisconsin, Madison, WI 53706, USA d Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA e Department of Physics, University of California, Berkeley, CA 94720, USA f Fachbereich 8 Physik, BUGH Wuppertal, D-42097 Wuppertal, Germany g Science Faculty CP230, Brussels Free University, Boulevard du Triomphe, B-1050 Brussels, Belgium h DESY-Zeuthen, D-15735 Zeuthen, Germany i Department of Radiation Sciences, Uppsala University, S-75121 Uppsala, Sweden j Department of Technology, Kalmar University, S-39182 Kalmar, Sweden k Department of Physics and Astronomy, Universityof Pennsylvania, Philadelphia, PA 19104, USA l Fysikum, Stockholm University, S-11385 Stockholm, Sweden m Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA |