Status of mirror segment production for the Giant Magellan Telescope

H. M. Martin; J. H. Burge; J. M. Davis; D. W. Kim; J. S. Kingsley; K. Law; A. Loeff; R. D. Lutz; C. Merrill; P. A. Strittmatter; M. T. Tuell; S. N. Weinberger; S. C. West

doi:10.1117/12.2234491

Status of mirror segment production for the Giant Magellan Telescope

H. M. Martin, J. H. Burge, J. M. Davis, D. W. Kim, J. S. Kingsley, K. Law, A. Loeff, R. D. Lutz, C. Merrill, P. A. Strittmatter, M. T. Tuell, S. N. Weinberger, S. C. West

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

8 Scopus citations

Abstract

The Richard F. Caris Mirror Lab at the University of Arizona is responsible for production of the eight 8.4 m segments for the primary mirror of the Giant Magellan Telescope, including one spare off-axis segment. We report on the successful casting of Segment 4, the center segment. Prior to generating the optical surface of Segment 2, we carried out a major upgrade of our 8.4 m Large Optical Generator. The upgrade includes new hardware and software to improve accuracy, safety, reliability and ease of use. We are currently carrying out an upgrade of our 8.4 m polishing machine that includes improved orbital polishing capabilities. We added and modified several components of the optical tests during the manufacture of Segment 1, and we have continued to improve the systems in preparation for Segments 2-8. We completed two projects that were prior commitments before GMT Segment 2: casting and polishing the combined primary and tertiary mirrors for the LSST, and casting and generating a 6.5 m mirror for the Tokyo Atacama Observatory.

Original language	English (US)
Title of host publication	Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
Editors	Ramon Navarro, James H. Burge
Publisher	SPIE
ISBN (Electronic)	9781510602038
DOIs	https://doi.org/10.1117/12.2234491
State	Published - 2016
Event	Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II - Edinburgh, United Kingdom Duration: Jun 26 2016 → Jul 1 2016

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9912
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
Country/Territory	United Kingdom
City	Edinburgh
Period	6/26/16 → 7/1/16

Keywords

Aspheres
Giant Magellan Telescope
Off-axis
Optical fabrication
Optical testing
Telescopes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.2234491

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Martin, H. M., Burge, J. H., Davis, J. M., Kim, D. W., Kingsley, J. S., Law, K., Loeff, A., Lutz, R. D., Merrill, C., Strittmatter, P. A., Tuell, M. T., Weinberger, S. N., & West, S. C. (2016). Status of mirror segment production for the Giant Magellan Telescope. In R. Navarro, & J. H. Burge (Eds.), Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II Article 99120V (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9912). SPIE. https://doi.org/10.1117/12.2234491

Status of mirror segment production for the Giant Magellan Telescope. / Martin, H. M.; Burge, J. H.; Davis, J. M. et al.
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II. ed. / Ramon Navarro; James H. Burge. SPIE, 2016. 99120V (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9912).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Martin, HM, Burge, JH, Davis, JM, Kim, DW, Kingsley, JS, Law, K, Loeff, A, Lutz, RD, Merrill, C, Strittmatter, PA, Tuell, MT, Weinberger, SN & West, SC 2016, Status of mirror segment production for the Giant Magellan Telescope. in R Navarro & JH Burge (eds), Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II., 99120V, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9912, SPIE, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, Edinburgh, United Kingdom, 6/26/16. https://doi.org/10.1117/12.2234491

Martin HM, Burge JH, Davis JM, Kim DW, Kingsley JS, Law K et al. Status of mirror segment production for the Giant Magellan Telescope. In Navarro R, Burge JH, editors, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II. SPIE. 2016. 99120V. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2234491

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abstract = "The Richard F. Caris Mirror Lab at the University of Arizona is responsible for production of the eight 8.4 m segments for the primary mirror of the Giant Magellan Telescope, including one spare off-axis segment. We report on the successful casting of Segment 4, the center segment. Prior to generating the optical surface of Segment 2, we carried out a major upgrade of our 8.4 m Large Optical Generator. The upgrade includes new hardware and software to improve accuracy, safety, reliability and ease of use. We are currently carrying out an upgrade of our 8.4 m polishing machine that includes improved orbital polishing capabilities. We added and modified several components of the optical tests during the manufacture of Segment 1, and we have continued to improve the systems in preparation for Segments 2-8. We completed two projects that were prior commitments before GMT Segment 2: casting and polishing the combined primary and tertiary mirrors for the LSST, and casting and generating a 6.5 m mirror for the Tokyo Atacama Observatory.",

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Status of mirror segment production for the Giant Magellan Telescope

Abstract

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Keywords

ASJC Scopus subject areas

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