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    Design of the fast steering secondary mirror assembly for the Giant Magellan Telescope

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    1070607.pdf
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    Author
    Cho, Myung K.
    Dribusch, Christoph
    Moon, Il-Kwon
    Jun, Youra
    Ryu, Jieun
    Poczulp, Gary
    Liang, Ming
    Lee, Sungho
    Han, Jeong-Yeol
    Kim, Sanghyuk
    Jeong, Ueejeong
    Kim, Chang-Hee
    Park, Chan
    Park, Byeong-Gon
    Lee, Wongi
    Kim, Ho-Sang
    Gardner, Paul
    Chiquito, Hugo
    Moon, Bongkon
    Kim, Yunjong
    Lee, Chan-Hee
    Bernier, Robert
    Groark, Frank
    Show allShow less
    Affiliation
    Univ Arizona
    Issue Date
    2018
    Keywords
    extremely large telescope
    Giant Magellan Telescope
    Fast Steering Secondary Mirror
    optics
    opto-mechanics
    mirror support
    tip-tilt
    optical performances
    
    Metadata
    Show full item record
    Publisher
    SPIE-INT SOC OPTICAL ENGINEERING
    Citation
    Myung Cho, Youra Jun, Christoph Dribusch, Jieun Ryu, Gary Poczulp, Ming Liang, Sungho Lee, Jeong-Yeol Han, Ueejeong Jeong, Sanghyuk Kim, Bongkon Moon, Chang-Hee Kim, Yunjong Kim, Chan Park, Byeong-Gon Park, Il-Kwon Moon, Chan-Hee Lee, Wongi Lee, Ho-Sang Kim, Paul Gardner, Robert Bernier, Frank Groark, and Hugo Chiquito "Design of the fast steering secondary mirror assembly for the Giant Magellan Telescope", Proc. SPIE 10706, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III, 1070607 (10 July 2018); doi: 10.1117/12.2313375; https://doi.org/10.1117/12.2313375
    Journal
    ADVANCES IN OPTICAL AND MECHANICAL TECHNOLOGIES FOR TELESCOPES AND INSTRUMENTATION III
    Rights
    © 2018 SPIE.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    The Fast-Steering secondary mirror (FSM) of Giant Magellan Telescope (GMT) consists of seven 1.1m diameter segments with effective diameter of 3.2m. Each of the seven segments is held by three axial supports and a central lateral support with a vacuum system to mirror gravity compensations. The mirror assembly has a tip-tilt feature capable of guiding to attenuate telescope wind shake and mount control jitter. Both on-axis and off-axis mirror segments were optimized under various design considerations using finite element analyses and optical performance analyses. An integrated model of the mirror cell assembly was developed including sub-assembly parts consisting of axial supports, lateral support, breakaway mechanism, seismic restraints, and pressure seal. In this paper for the optimized FSM mirror and mirror cell assembly, the design considerations are addressed, and performance prediction results are discussed in detail with respect to the specifications.
    ISSN
    9781510619654
    9781510619661
    DOI
    10.1117/12.2313375
    10.1117/12.2313375.5807154375001
    Version
    Final published version
    Sponsors
    KASI; GMT Project Office
    Additional Links
    https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10706/2313375/Design-of-the-fast-steering-secondary-mirror-assembly-for-the/10.1117/12.2313375.full
    https://www.spiedigitallibrary.org/conference-presentations/10706/1070607/Design-of-the-fast-steering-secondary-mirror-assembly-for-the/10.1117/12.2313375.5807154375001
    ae974a485f413a2113503eed53cd6c53
    10.1117/12.2313375
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