Scanning electron probe microanalyser, 1960.
4 0 c m
actual image size: 26cm x 32cm

Scanning electron probe microanalyser, 1960.

© Science Museum / Science & Society Picture Library


Peter Duncomb and David Melford built this microanalyser at the Tube Investments Research Laboratories near Cambridge, and formed the prototype of the 'Microscan' X-ray microanalysers produced by the Cambridge Instrument Company. It detects the X-rays emitted from the specimen when an electron beam hits it. The X-ray detector is tuned to the characteristic X-rays from a selected element, and the instrument produces an image showing the location of particles of that element in the specimen.

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