Development status of the fast-steering secondary mirror of GMT

Thumbnail
Name:
1070044.pdf
Size:
5.430Mb
Format:
PDF
Description:
Final Published version
Download
Author
Lee, Sungho
Jeong, Ueejeong
Kim, Sanghyuk
Moon, Bong-Kon
Kim, Chang-Hee
Kim, Yunjong
Park, Chan
Park, Byeong-Gon
Cho, Myung K.
Dribusch, Christoph
Affiliation
Univ Arizona
Issue Date
2018
Keywords
extremely large telescope
Giant Magellan Telescope
Fast Steering Mirror
optics
opto-mechanics
mirror support
tip-tilt
image quality

Metadata
Show full item record
Publisher
SPIE-INT SOC OPTICAL ENGINEERING
Citation
Sungho Lee, Jeong-Yeol Han, Ueejeong Jeong, Sanghyuk Kim, Bong-Kon Moon, Chang-Hee Kim, Yunjong Kim, Chan Park, Byeong-Gon Park, Myung K. Cho, Christoph Dribusch, Youra Jun, Jieun Ryu, Gary Poczulp, Ming Liang, Il Kweon Moon, Chanhee Lee, Wongi Lee, Ho-Sang Kim, Paul Gardner, Robert Bernier, Frank Groark, and Hugo Chiquito "Development status of the fast-steering secondary mirror of GMT", Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 1070044 (6 July 2018); doi: 10.1117/12.2313174; https://doi.org/10.1117/12.2313174
Journal
GROUND-BASED AND AIRBORNE TELESCOPES VII
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 Giant Magellan Telescope (GMT) will be equipped with two Gregorian secondary mirrors; a fast-steering secondary mirror (FSM) for seeing-limited operations and an adaptive secondary mirror (ASM) for adaptive optics observing modes. The FSM has an effective diameter of 3.2 m and is comprised of seven 1.1 m diameter circular segments, which are conjugated 1:1 to the seven 8.4m segments of the primary mirror. Each FSM segment has a tip-tilt capability for fast guiding to attenuate telescope wind shake and jitter. The FSM is mounted on a two-stage positioning system; a macro-cell that positions the entire FSM segments as an assembly and seven hexapod actuators that position and drive the individual FSM segments. In this paper, we present a technical overview of the FSM development status. More details in each area of development will be presented in other papers by the FSM team.
ISSN
9781510619531
9781510619548
DOI
10.1117/12.2313174
Version
Final published version
Additional Links
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10700/2313174/Development-status-of-the-fast-steering-secondary-mirror-of-GMT/10.1117/12.2313174.full
Collections