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- W2068758876 abstract "The Advanced Technology Solar Telescope (ATST) is a complex off-axis Gregorian design to be used for solar astronomy. In order the counteract the effects of mirror and telescope structure flexure, the ATST requires an active optics alignment strategy. This paper presents an active optics alignment strategy that uses three wavefront sensors distributed in the ATST field-of-view to form a least-squares alignment solution with respect to RMS wavefront error. The least squares solution is realized by means of a damped least squares linear reconstructor. The results of optical modelling simulations are presented for the ATST degrees-of-freedom subject to random perturbations. Typical results include residual RMS wavefront errors less than 20 nm. The results quoted include up to 25 nm RMS wavefront sensor signal noise, random figure errors on the mirrors up to 500 nm amplitude, random decenter range up to 500 <i>μm</i>, and random tilts up to 10<i>e</i> - 03 degrees (36 arc-secs) range." @default.
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- W2068758876 date "2006-06-14" @default.
- W2068758876 modified "2023-09-27" @default.
- W2068758876 title "Active optical alignment of the Advanced Technology Solar Telescope" @default.
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- W2068758876 doi "https://doi.org/10.1117/12.671826" @default.
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