Many of the US shots were purchased from the LLNL public relations people.
Nearly all of the UK shots are from the Australian Dept. of Primary Industries & Energy, although their originator is the AWE (Atomic Weapons Establishment), UK.
The French shots are from the C.E.A., France.
Those not obtained directly from the above sources were scanned from various publications, the images themselves are believed not to be under copyright.
Nearly all of them were taken by government photographers, except one or two which are noted.
They are all believed to be in the public domain. I claim no copyrights, or other rights, to any of them.