Figure 25

Fig. 25: a) µ-XAS-tomography of a U fuel particle collected from Chernobyl soil, mounted on a glass capillary. The image shows a 3-D rendering of 500 tomographic slices of the particle. Each projection image consisted of 1024 x 1024 pixels and required 10 seconds exposure time. b) By opening a computerised data block, the inner structure cavities and channels reflect the formation of volatile fission products during reactor operations.