HETDEX: VIRUS Spectrographs Assembly and Alignment

Details HETDEX: VIRUS Spectrographs Assembly and Alignment HETDEX: VIRUS Spectrographs Assembly and Alignment

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21942420p&link_type=abstract

American Astronomical Society, AAS Meeting #219, #424.20

Astronomy and Astrophysics

Astronomy

Scientific paper

We describe the assembly and optical alignment process used to construct the Visual Integral-Field Replicable Unit Spectrograph (VIRUS) instrument. VIRUS is a set of 150+ optical spectrographs designed to support observations for the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX). To meet the accuracy, interchangeability, time and cost constraints, a production line will be set up to construct and test modular subassemblies in parallel. To facilitate the VIRUS production, fixtures and adjustment mechanisms have been designed to aid in assembly and alignment. This poster describes the details and operations of the camera mirror, collimator mirror and grating adjustment mechanisms, as well as the fold flat mirror alignment fixture.

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