Woody, David P. and Padin, Steve and Sebring, Thomas (2010) CFRP truss for the CCAT 25 m diameter submillimeter-wave telescope. In: Ground-based and airborne telescopes III. Proceedings of SPIE (7733). Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 77332B. ISBN 978-0-81948-223-5 http://resolver.caltech.edu/CaltechAUTHORS:20110316-134754818
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Abstract
CCAT will be a 25 m diameter submillimeter-wave telescope that will operate inside a dome located on Cerro Chajnantor in the Atacama Desert. The telescope must have high aperture efficiency at a wavelength of 350 microns and good performance out to a wavelength of 200 microns. A conceptual design for a carbon fiber reinforced plastic (CFRP) truss and primary reflector support truss has been developed. This design yields a telescope with a net 1/2 wave front error of <10 microns using a lookup table to adjust the segment actuators to compensate for gravitational deflections. Minor corrections may be required to compensate for the expected 20 C temperature excursions. These can be handled using a coarse lookup table.
| Item Type: | Book Section | ||||
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| Additional Information: | © 2010 SPIE. This work was supported by the John B. and Nelly Kilroy Foundation. | ||||
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| Subject Keywords: | Submillimeter telescope; telescope structures; CFRP truss | ||||
| Record Number: | CaltechAUTHORS:20110316-134754818 | ||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20110316-134754818 | ||||
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| Official Citation: | David P. Woody, Stephen Padin and Thomas Sebring, "CFRP truss for the CCAT 25m diameter submillimeter-wave telescope", Proc. SPIE 7733, 77332B (2010); doi:10.1117/12.856498 | ||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||
| ID Code: | 22939 | ||||
| Collection: | CaltechAUTHORS | ||||
| Deposited By: | Tony Diaz | ||||
| Deposited On: | 16 Mar 2011 22:14 | ||||
| Last Modified: | 26 Dec 2012 13:04 |
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