@inproceedings{e8c12bdb5df74e62a7a5e36b85860ff4,
title = "Manufacture of 8.4 m segments for the GMT primary mirror",
abstract = "The Richard F. Caris Mirror Lab at the University of Arizona continues production of 8.4 m lightweight honeycomb segments for the primary mirror of the Giant Magellan Telescope. GMT will have a center segment surrounded by six off-Axis segments, plus an additional off-Axis segment to allow continuous operation as segments are removed for coating. The second off-Axis segment was completed and accepted in 2019. We are currently polishing the optical surface of off-Axis Segment 3. We have completed work on the rear surfaces of Segment 4, the center segment, and offaxis Segment 5. We are assembling the mold for off-Axis Segment 6 with the spin-casting scheduled for March 2021. ",
keywords = "Giant Magellan Telescope, aspheres, off-Axis, optical fabrication, optical testing, telescopes",
author = "Martin, {H. M.} and R. Ceragioli and B. Jannuzi and Kim, {D. W.} and Kingsley, {Jeffrey S} and K. Law and A. Loeff and Lutz, {R. D.} and McMahon, {T. J.} and S. Meyen and Oh, {C. J.} and Tuell, {M. T.} and Weinberger, {S. N.} and West, {S. C.} and R. Wortley",
note = "Funding Information: This work has been supported by the GMTO Corporation, a non-profit organization operated on behalf of an international consortium of universities and institutions: Arizona State University, Astronomy Australia Ltd, the Australian National University, the Carnegie Institution for Science, Harvard University, the Korea Astronomy and Space Science Institute, the S{\~a}o Paulo Research Foundation, the Smithsonian Institution, the University of Texas at Austin, Texas A&M University, the University of Arizona, and the University of Chicago. Publisher Copyright: {\textcopyright} 2020 SPIE.; Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV 2020 ; Conference date: 14-12-2020 Through 22-12-2020",
year = "2020",
doi = "10.1117/12.2590568",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Ramon Navarro and Roland Geyl",
booktitle = "Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV",
}