Category: Robotics > Characterization and Inspection > Underwater System
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Sellafield are working with a Swedish company called FriGeo to develop a self-sinking probe to sample radioactive sludge from the bottom of a five-metre-deep legacy fuel storage pond.
The challenge posed was how to remotely collect samples of radioactive sludge up to 100cm deep from the bottom of the First Generation Magnox Storage Pond (FGMSP) at Sellafield, without disturbing the thick sludge bed or destroying the sample's characteristics.
The answer involved the development of a probe that could be remotely lowered into the sludge where it could pick up a sample from a predefined depth without disturbing the material.
FriGeo specialises in artificial freezing/stabilisation of sediment or ground, a technology which uses rapid freezing to solidify/stabilise an area of sediment for both dredging and salvage of objects, and from this was born the idea of freeze sampling.
Size:Very Large (>100kg/200lb, >120cm/48in)