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Figure 2
Height profile of an aluminium lens measured by white-light interferometry; contour plot (a) and linear scan through the lens (b). The parabolic fit gives R = 196 ± 1 µm and a surface roughness of 0.1 ± 0.1 µm r.m.s.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 6| Part 6| November 1999| Pages 1153-1167
doi:10.1107/S0909049599009747
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