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Optics for EUV, X-Ray, and Gamma-Ray Astronomy V
The optics for the International X-Ray Observatory (lXO) require alignment and integration of about fourteen thousand thin mirror segments to achieve the mission goal of 3.0 square meters of effective area at 1.25 keY with an angUlar resolution of five arc-seconds. These mirror segments are 0.4 mm thick, and 200 to 400 mm in size, which makes it difficult not to impart distortion at the sub-arc-second level. This paper outlines the precise alignment, permanent bonding, and verification testingdoi:10.1117/12.894011 fatcat:wrycbjmecbbkpmn3y2nkbomx7m