Design and production of DESI slit assemblies

Luke Tyas; Robert Besuner; David Bramall; Jerry Edelstein; Patrick Jelinsky; Claire Poppett; Jürgen Schmoll; Ray Sharples

doi:10.1117/12.2312034

12 July 2018 Design and production of DESI slit assemblies

Luke Tyas, Robert Besuner, David Bramall, Jerry Edelstein, Patrick Jelinsky, Claire Poppett, Jürgen Schmoll, Ray Sharples

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 107027L (2018) https://doi.org/10.1117/12.2312034
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 35 million galaxies and quasars over 14000 sq. deg will be measured during the life of the experiment. A new prime focus corrector for the KPNO Mayall telescope will deliver light to 5000 fibre optic positioners. The fibres in turn feed ten broad-band spectrographs. We describe the design, production, quality assurance procedures and performance of the DESI slit assemblies.

Citation Download Citation

Luke Tyas, Robert Besuner, David Bramall, Jerry Edelstein, Patrick Jelinsky, Claire Poppett, Jürgen Schmoll, and Ray Sharples "Design and production of DESI slit assemblies", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107027L (12 July 2018); https://doi.org/10.1117/12.2312034

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