Fig. 12
Small part of raw image for a) HRF flat-field exposure, b) simultaneous LRF and reference fibre flat-field exposure, and c) LRF stellar exposure interlaced with Thorium reference exposure. The cross-cuts insets show cross-order profiles of a) the double-peaked sliced HRF and b) LRF and reference fibre (30% smaller than LRF).
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