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System overview. Laser and broadband light are alternatingly sent and focussed through a set of achromatic lenses on a spot on the target. The diffusely reflected light is captured along a line from the source spot, split by a beamsplitter and focussed by another achromatic lens to the slit of a spectrometer and an array of DCS detector fibres. Scanning is done by translational movement of the target.
