1. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California 94551-0808, USA
2. Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545, USA
3. General Atomics, P.O. Box 85608, San Diego, California 92186-5608, USA
4. LULI, Ecole Polytechnique, 91128 Palaiseau cedex, France
5. Diamond Materials, GmbH, Hans-Bunte-Str. 19, 79108 Freiburg, Germany