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Figure 3
4" Fizeau measurements made at normal incidence to the surface. (a) Deviation from the ideal parabola for both surfaces (1 and 2). (b) Slope errors (∼12 µrad RMS) in a 40 mm distance for both surfaces (1 and 2). The results are consistent with the LTP measurements. (c) Two-dimensional plots on the mirror surface in a 2 mm range close to the junction between the two mirrors: (i) surface 1 and (ii) surface 2.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 18| Part 6| September 2011| Pages 862-870
doi:10.1107/S0909049511031098
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