1. Lawrence Livermore National Laboratory, Livermore, California 94550, USA
2. AWE plc, Aldermaston, Reading, Berkshire, RG7 4PR, United Kingdom
3. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14636, USA
4. Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
5. General Atomics, San Diego, California 92186, USA