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Proceedings Paper • new

LSST primary/tertiary mirror cell assembly integration
Author(s): Constanza Araujo-Hauck; Michael Booth; Christopher Contaxis; Andy Clements; Felipe Daruich; Ed Hileman; Brian Johnson; Neill Mills; Gary P. Muller; Ed Stover; Michael Warner; Oliver Wiecha; Douglas R. Neill; William J. Gressler
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Paper Abstract

The Large Synoptic Survey Telescope (LSST) primary/tertiary (M1M3) mirror cell is a 25-ton, 9-meter x 9-meter x 2- meter steel weldment that supports the 19-ton borosilicate M1M3 monolith mirror on the telescope and acts as the lower vessel of the coating chamber when optically coating the mirror surfaces. The M1M3 telescope mirror cell contract was awarded to CAID Industries, Inc., of Tucson, Arizona in October 2015. After the mirror cell final acceptance in October 2017, the integration of the mirror support system started. The M1M3 cell assembly with the surrogate mirror will take place in a dedicated controlled-environment area at CAID Industries. All components of the mirror support system that were developed and tested by the LSST Telescope and Site M1M3 team at the NOAO offices in Tucson have been moved to CAID premises and have been integrated into the cell by a team of LSST, CAID and Richard F. Caris Mirror lab personnel. After completion of the cell integration and its assembly with the surrogate, a test phase that includes zenith and offzenith testing for the mirror support system will be carried by the LSST team. These tests aim to verify that the active support system components, mirror control, and software are performing as expected and the mirror support system is safe for the next step, the M1M3 cell to borosilicate glass assembly and tests at the RFC Mirror Lab of the University of Arizona.

Paper Details

Date Published: 6 July 2018
PDF: 11 pages
Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 1070035 (6 July 2018); doi: 10.1117/12.2312231
Show Author Affiliations
Constanza Araujo-Hauck, Large Synoptic Survey Telescope (United States)
Michael Booth, Large Synoptic Survey Telescope (United States)
Christopher Contaxis, Large Synoptic Survey Telescope (United States)
Andy Clements, Large Synoptic Survey Telescope (United States)
Felipe Daruich, Large Synoptic Survey Telescope (United States)
Ed Hileman, Large Synoptic Survey Telescope (United States)
Brian Johnson, Large Synoptic Survey Telescope (United States)
Neill Mills, Large Synoptic Survey Telescope (United States)
Gary P. Muller, Large Synoptic Survey Telescope (United States)
Ed Stover, Large Synoptic Survey Telescope (United States)
Michael Warner, Large Synoptic Survey Telescope (United States)
Oliver Wiecha, Large Synoptic Survey Telescope (United States)
Douglas R. Neill, Large Synoptic Survey Telescope (United States)
William J. Gressler, Large Synoptic Survey Telescope (United States)


Published in SPIE Proceedings Vol. 10700:
Ground-based and Airborne Telescopes VII
Heather K. Marshall; Jason Spyromilio; Roberto Gilmozzi, Editor(s)

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