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VIRUS: assembly, testing and performance of 33,000 fibres for HETDEX
Ground-based and Airborne Instrumentation for Astronomy V
VIRUS is the visible, integral-field replicable unit spectrograph for the Hobby-Eberly-Telescope (HET) consisting of 75 integral-field-units that feed 150 spectrographs. The full VIRUS instrument features over 33,000 fibres, each projecting to 1.5 arcseconds diameter on sky, deployed at the prime focus of the upgraded 10m HET. The assembly and acceptance testing for all IFUs includes microscopic surface quality inspections, astrometry of fibre positions, relative throughput measurements,doi:10.1117/12.2056384 fatcat:ol2x6oa6ybeovkd7vlcmdhoeuu