1. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
2. Directorate Science and Technology, AWE Aldermaston, Reading RG7 4PR, United Kingdom
3. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623, USA
4. Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
5. Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA