1. P-2, Fundamental and Applied Physics, Los Alamos National Laboratory, Los Alamos, New Mexico 87507, USA
2. Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
3. Department of Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, Michigan 48109, USA
4. Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
5. Los Alamos National Laboratory, Los Alamos, New Mexico 87507, USA
6. General Atomics, San Diego, California 92121, USA
7. Laboratory for Laser Energetics, Rochester, New York 14623, USA
8. Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
9. Department of Astronomy and Astrophysics, University of Chicago, Chicago, Illinois 60637, USA
10. Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
11. Atomic Weapons Establishment, Aldermaston, Reading RG7 4PR, United Kingdom