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Proceedings Paper

Fiber spectroscopy at Palomar Observatory
Author(s): Donald Hamilton
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Paper Abstract

A new faint-object spectrograph was designed and built around the capabilities of fiber optics. This instrument, the Norris Spectrograph, is designed exclusively for the Cassegrain focus of the Hale Telescope. There are 176 indpendently positionable fibers, each with an aperture 1.5 arcsec in diameter. These 176 probes cover a field of view of diameter about 20 arcmin. The output ends of the fibers are collimated with a spherical mirror, dispersed using a normal reflection grating, and focused onto a 2048 x 2048 CCD using all-transmissive optics. The peak overall efficiency of the instrument will be in excess of 10 percent.

Paper Details

Date Published: 1 July 1990
PDF: 8 pages
Proc. SPIE 1235, Instrumentation in Astronomy VII, (1 July 1990); doi: 10.1117/12.19130
Show Author Affiliations
Donald Hamilton, Palomar Observatory/California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 1235:
Instrumentation in Astronomy VII
David L. Crawford, Editor(s)

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