CFRP truss for the CCAT 25 m diameter submillimeter-wave telescope
- Creators
- Woody, David P.
- Padin, Steve
- Sebring, Thomas
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 �½ 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.
Additional Information
© 2010 SPIE. This work was supported by the John B. and Nelly Kilroy Foundation.Attached Files
Published - Woody2010p12877Adaptive_Optics_Systems_Pts_1-3.pdf
Files
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Additional details
- Eprint ID
- 22939
- DOI
- 10.1117/12.856498
- Resolver ID
- CaltechAUTHORS:20110316-134754818
- John B. and Nelly Kilroy Foundation
- Created
-
2011-03-16Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 7733