1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
2. Lawrence Livermore National Laboratory, Livermore, California 94550, USA
3. Atomic Weapons Establishment, Aldermaston, Berkshire RG7 4PR, United Kingdom
4. General Atomics, San Diego, California 92186, USA
5. Misson Support and Test Services, LLC, Los Alamos, New Mexico 87544, USA
6. Kentech Instruments Ltd., Wallingford, Oxfordshire OX10 8BD, United Kingdom
7. Photeck Ltd., St Leonards-on-Sea, East Sussex TN38 9NS, United Kingdom
8. Sydor Technologies, Rochester, New York 14624, USA