A UV prime focus spectrograph for the CFHT

Details A UV prime focus spectrograph for the CFHT A UV prime focus spectrograph for the CFHT

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..627..268b&link_type=abstract

IN: Instrumentation in astronomy VI; Proceedings of the Meeting, Tucson, AZ, Mar. 4-8, 1986. Part 1 (A87-36376 15-35). Bellingha

Astronomy and Astrophysics

Astronomy

Astronomical Spectroscopy, Charge Coupled Devices, Spectroscopic Telescopes, Ultraviolet Spectroscopy, Aberration, Asphericity, Gratings (Spectra), Schmidt Cameras

Scientific paper

The UV prime spectrograph at the Canada-France-Hawaii Telescope is the first instrument to be designed with an aspherized diffraction grating. This technique leads to all reflective Schmidt designs with a very small amount of optical surface on fast aperture ratio. A thin backside illuminated RCA CCD is now used as the detector. Since the detector is at the focus of an f/1 mounting, within the optical path, a minicryostat (5 cm×5 cm×3 cm) was designed to minimize the central obscuration. This paper describes this new instrument and its performances.

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