Dark Energy Spectroscopic Instrument (DESI) Fiber Positioner Production
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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 fiber optic positioners. The fibers in turn feed ten broad-band spectrographs. We will describe the production and manufacturing processes developed for the 5000 fiber positioner robots mounted on the focal plane of the Mayall telescope.
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Cited by 4 Pith papers
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MOSAIC at ELT: Design and First Prototyping of Novel Robotic Optical-Relay Positioners
Presents initial design and prototypes of robotic optical-relay positioners for MOSAIC on ELT using relay mirrors, telecentricity adaptation to a 37.868 m distant pupil, and per-positioner ADCs.
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MOSAIC at ELT: Design and First Prototyping of Novel Robotic Optical-Relay Positioners
Design and first performance results of novel robotic optical-relay positioners for the MOSAIC instrument on the ELT.
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MOSAIC at ELT: Design and First Prototyping of Novel Robotic Optical-Relay Positioners
Presents initial design and first prototypes of robotic optical-relay positioners addressing ELT-scale challenges of relay optics, pupil pointing, and per-positioner ADCs for the MOSAIC instrument.
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Focal Plate Prototyping for Modular Focal Planes of Stage-5 Instruments For Ground-Based Telescopes
A focal plate prototype for Stage-5 telescope instruments shows that 5-axes machining can achieve the required tilt and focus tolerances.
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