Nuclear fuel production. Worker repairing a rotor compressor for gas diffusion machinery in a uranium enrichment factory. Uranium consists of two natural isotopes: mostly U-238 and less than 1 percent U-235. The U-235 needs to be increased to around 3-5 percent of the overall mixture to make a controlled nuclear fission reaction feasible. Here,the enrichment is carried out by gas diffusion by heating solid uranium hexafluoride (UF6). The UF6 molecules containing U-235 are lighter and diffuse faster through the pipelines and filters,producing a UF6 gas that is enriched with U-235. After cooling and solidifying,the enriched UF6 is used to make fuel for nuclear power stations. This is Eurodif's George Besse factory near Tricastin,France. Photographed in 2004 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Landmann, Patrick |
Bildgröße: | 5197 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |