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Figure 3
Surface profile of the Ni1 mirror. Characterized is the clear aperture of 370 mm × 20 mm. The typical profile results in a concave radius of above 500 km and a slope error of 0.032 arcsec (r.m.s.) tangential and 0.038 arcsec (r.m.s.) sagittal. The 2σ and 6σ footprints of a FEL beam at 150 eV are drawn for reference according to Kuhlmann & Plönjes (2013BB20).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 30| Part 2| March 2023| Pages 479-489
https://doi.org/10.1107/S1600577523000395
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