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Proceedings Paper

Engineering and testing of prime focus fiber feeds on the William Herschel Telescope
Author(s): Susan P. Worswick; David W. Gellatly; Nicholas K. Ferneyhough; Percy Terry; Andrew J. Weise; Richard G. Bingham; Charles R. Jenkins; Frederick G. Watson
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Paper Abstract

The prime focus of the William Herschel telescope provides a wide field (one degree) for fiber spectroscopy. The production of the fiber feeds, which run from the prime focus to one of the Nasymyth platforms, has required the development of a multiple fiber to fiber connector together with techniques for mounting micro-lenses at the input to the spectrography. The protection of the fibers on the telescope, coupled with careful routing, has led to good focal ratio degradation (FRD) performance. A system for measuring the variation in transmission of the fibers on the telescope has been produced; the technique allows these measurements to be made under normal daytime lighting conditions.

Paper Details

Date Published: 1 June 1994
PDF: 12 pages
Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); doi: 10.1117/12.176766
Show Author Affiliations
Susan P. Worswick, Royal Greenwich Observatory (United Kingdom)
David W. Gellatly, Royal Greenwich Observatory (United States)
Nicholas K. Ferneyhough, Royal Greenwich Observatory (United Kingdom)
Percy Terry, Royal Greenwich Observatory (United Kingdom)
Andrew J. Weise, Royal Greenwich Observatory (United Kingdom)
Richard G. Bingham, Royal Greenwich Observatory (United Kingdom)
Charles R. Jenkins, Royal Greenwich Observatory (United Kingdom)
Frederick G. Watson, Royal Greenwich Observatory (Australia)


Published in SPIE Proceedings Vol. 2198:
Instrumentation in Astronomy VIII
David L. Crawford; Eric R. Craine, Editor(s)

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