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- W2018241901 abstract "We describe the active support system and optimization of support forces for the 6.5 m primary mirror for the Multiple Mirror Telescope Conversion. The mirror was figured to an accuracy of 26 nm rms surface error, excluding certain flexible bending modes that will be controlled by support forces in the telescope. On installation of the mirror into its telescope support cell, an initial optimization of support forces is needed because of minor differences between the support used during fabrication and that in the telescope cell. The optimization is based on figure measurements made interferometrically in the vibration- isolated test tower of the Steward Observatory Mirror Lab. Actuator influence functions were determined by finite- element analysis and verified by measurement. The optimization is performed by singular value decomposition of the influence functions into normal modes. Preliminary results give a wavefront accuracy better than that of the atmosphere in 0.11 arcsecond seeing." @default.
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- W2018241901 date "1998-08-25" @default.
- W2018241901 modified "2023-10-01" @default.
- W2018241901 title "<title>Active supports and force optimization for the MMT primary mirror</title>" @default.
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- W2018241901 doi "https://doi.org/10.1117/12.319262" @default.
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