1. University of Rochester, Laboratory for Laser Energetics, 250 East River Road, Rochester, New York 14623-1299
2. GSI, Darmstadt, Germany
3. Lawrence Livermore National Laboratory, Livermore, California
4. Commissariat à l’Energie Atomique, Le Barp, France
5. Council for the Central Laboratory of the Research Councils, Rutherford Appleton Laboratory, Didcot, United Kingdom
6. Institute for Laser Engineering, Osaka, Japan
7. Sandia National Laboratory, Albuquerque, New Mexico
8. Ecole Polytechnique, Paris, France