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Figure 3
(a) Fine step scan of the grating angle between 5 and 11 µrad within 1 h. (b) Zoom of one cycle from (a); the increments of the linear encoder steps (red line) are compared with the measuring angle of the grating surface with the autocollimator (scattered dots). (c) Standard deviation of stability in both directions.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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