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THuCIDIDES: a high-efficiency multimode spectrograph design for the Hale Telescope

Behr, Bradford B. (1998) THuCIDIDES: a high-efficiency multimode spectrograph design for the Hale Telescope. In: Optical Astronomical Instrumentation. Proceedings of SPIE. No.3355. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 675-681. ISBN 9780819428028.

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This paper describes the operating parameters and initial design of a new spectrograph proposed for the 200-inch Hale Telescope at Palomar Observatory. The instrument, whose working name is THuCIDIDES (Two Hundred-inch Cassegrain Image- Deblurred Interchangeable-Disperser/Echelle Spectrograph), will feature high system efficiency and multiple modes of operation, including low- and intermediate-resolution long slit and multi-slit capability over 12.5 X 3 arcmin fields, and a cross-dispersed echelle mode covering 3800 - 8500 angstrom at R equals 20,000 (with a 1.2 arcsecond slit) up to R equals 60,000 (with an image slicer). A 4096 X 4096 pixel CCD will serve as the detector. The quasi-Littrow echelle configuration and use of a prism cross-disperser will result in high system efficiency, estimated at approximately equals 14%. The compact design will permit mounting in the Cassegrain ring plane, to reduce susceptibility to flexure. An optional fast-guiding tilt mirror provides modest improvement to seeing FWHM and slit throughput.

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Additional Information:© 1998 Society of Photo-Optical Instrumentation Engineers (SPIE). Special thanks to J. K. McCarthy, for many patient tutorials on spectrograph design theory, as well as specific guidance and assistance with this project.
Group:Infrared Processing and Analysis Center (IPAC)
Subject Keywords:optical instrumentation — echelle spectrograph — lens design — fast tip-tilt guiding
Series Name:Proceedings of SPIE
Issue or Number:3355
Record Number:CaltechAUTHORS:20180801-112900212
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Official Citation:Bradford B. Behr, "THuCIDIDES: a high-efficiency multimode spectrograph design for the Hale Telescope", Proc. SPIE 3355, Optical Astronomical Instrumentation, (9 July 1998); doi: 10.1117/12.316801;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88448
Deposited By: George Porter
Deposited On:01 Aug 2018 21:53
Last Modified:16 Nov 2021 00:27

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