NDLI: Design for CCAT, a 25 m diameter telescope operating from 200 GHz to 1.5 THz

Content Provider	IEEE Xplore Digital Library
Author	Woody, D. Padin, S. Redding, D. Lou, J. Kissil, A.
Copyright Year	2011
Description	Author affiliation: JPL, 4800 Oak Grove Drive, Pasadena, CA 91109 USA (Redding, D.) \|\| Owens Valley Radio Observatory, Caltech, P.O. Box 968, Big Pine, CA 93513 USA (Woody, D.) \|\| Caltech, 1200 E. California Blvd., Pasadena, CA 91125 USA (Padin, S.) \|\| JPL (Lou, J.; Kissil, A.)
Abstract	CCAT will be a 25 m diameter Ritchey-Chretien telescope operating in the 0.2–1.5 mm wavelength range. It will be located at an altitude of 5600 m on Cerro Chajnantor in northern Chile, near the ALMA site. CCAT will have an f/0.4 primary, with an active surface to compensate gravitational and thermal deformations. The primary will be supported by a carbon fiber reinforced plastic (CFRP) space frame truss on an elevation over azimuth mount made of steel. Cameras and spectrometers with up to 1 deg field of view (FoV) will be located at the two f/6 Nasmyth foci. CCAT will be inside an enclosure to reduce wavefront and pointing errors due to wind forces and thermal deformation due to solar illumination. The key performance challenges for CCAT are a half wavefront error (HWFE) <10 μm rms and pointing error <0.2".
Starting Page	1
Ending Page	4
File Size	833221
Page Count	4
File Format	PDF
ISBN	9781424451173
e-ISBN	9781424460519
DOI	10.1109/URSIGASS.2011.6051257
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-13
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Charge coupled devices Motion segmentation Telescopes Sensors Steel Optical surface waves Gravity
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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