The DESI instrument control systems: status and early testing

Journal Article · Fri Jul 06 00:00:00 EDT 2018 · Proceedings of SPIE - The International Society for Optical Engineering

DOI:https://doi.org/10.1117/12.2311927· OSTI ID:1469705

Honscheid, Klaus ^[1]; Elliott, Ann E. ^[1]; Buckley-Geer, Elizabeth ^[2]; Kent, Stephen ^[3]; Neilsen, Eric ^[3]; Kirkby, David ^[4]; Roodman, Aaron ^[5]; Castander, Francisco ^[6]; Serrano, Santiago ^[7]; Rabinowitz, David ^[8]; Marshall, Robert ^[9]; Abreshi, Behzad ^[9]; daCosta, Luiz ^[10]; Ogando, Ricardo ^[10]; Brooks, David ^[11]; Levi, Michael ^[12]; Tarle, Gregory ^[13]

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1. The Ohio State Univ., Columbus, OH (United States)
2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States). Accelerator Division
3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
4. Univ. of California, Irvine, CA (United States)
5. SLAC National Accelerator Lab., Menlo Park, CA (United States)
6. Institut d'Estudis Espacials de Catalunya, Barcelona (Spain)
7. Institut de Ciencies de l'Espai, Barcelona (Spain)
8. Yale Univ., New Haven, CT (United States)
9. National Optical Astronomy Observatory, Tucson, AZ (United States)
10. Observatorio National, Rio de Janeiro (Brazil)
11. Univ. College London, London (United Kingdom)
12. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
13. Univ. of Michigan, Ann Arbor, MI (United States)

The Dark Energy Spectroscopic Instrument (DESI) is a new instrument currently under construction for the Mayall 4-m telescope at Kitt Peak National Observatory. It will consist of a wide-field optical corrector with a 3.2 degree diameter field of view, a focal plane with 5,000 robotically controlled fiber positioners and 10 fiber-fed broad-band spectrographs. The DESI Instrument Control System (ICS) coordinates fiber positioner operations, interfaces to the Mayall telescope control system, monitors operating conditions, reads out the 30 spectrograph CCDs and provides observer support and data quality monitoring. In this paper, we summarize the ICS design, review the current status of the project and present results from a multi-stage test plan that was developed to ensure the system is fully operational by the time the instrument arrives at the observatory in 2019.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1469705
• Report Number(s): arXiv:1807.09366; FERMILAB-CONF-18-338-CD; 1682411
• Journal Information: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 10707; ISSN 0277-786X
• Publisher: SPIE
• Country of Publication: United States
• Language: English

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79 ASTRONOMY AND ASTROPHYSICS