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1 June 1994 Engineering and testing of prime focus fiber feeds on the William Herschel Telescope
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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.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Susan P. Worswick, David W. Gellatly, Nicholas K. Ferneyhough, Percy Terry, Andrew J. Weise, Richard G. Bingham, Charles R. Jenkins, and Frederick G. Watson "Engineering and testing of prime focus fiber feeds on the William Herschel Telescope", Proc. SPIE 2198, Instrumentation in Astronomy VIII, (1 June 1994); https://doi.org/10.1117/12.176766
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