The WIYN one degree imager 2014: Performance of the partially populated focal plane and instrument upgrade path

Daniel R. Harbeck, Todd Boroson, Michael P Lesser, Jayadev Rajagopal, Andrey Yeatts, Charles Corson, Wilson Liu, Ian Dell'Antonio, Ralf Kotulla, David Ouellette, Eric Hooper, Mike Smith, Richard Bredthauer, Pierre Martin, Gary Muller, Patricia Knezek, Mark Hunten

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

The One Degree Imager (ODI) was deployed during the summer of 2012 at the WIYN 3.5m telescope, located on Kitt Peak near Tucson, AZ (USA). ODI is an optical imager designed to deliver atmosphere-limited image quality (≤ 0.4" FWHM) over a one degree field of view, and uses Orthogonal Transfer Array (OTA) detectors to also allow for on-chip tip/tilt image motion compensation. At this time, the focal plane is partially populated ("pODI" with 13 out of 64 OTA detectors, providing a central scientifically usable field of view of about 24′2 × 24′ four of the thirteen detectors are installed at outlying positions to probe image quality at all field angles. The image quality has been verified to be indeed better than 0.4″ FWHM over the full field when atmospheric conditions allow. Based on over one year of operations, we summarize pODIs performance and lessons learned. As pODI has proven the viability of the ODI instrument, the WIYN consortium is engaging in an upgrade project to add 12 more detectors to the focal plane enlarging the scientifically usable field of view to about 40′2 × 40′. A design change in the new detectors has successfully addressed a low light level charge transfer inefficiency.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
Volume9147
ISBN (Print)9780819496157
DOIs
Publication statusPublished - 2014
EventGround-Based and Airborne Instrumentation for Astronomy V - Montreal, Canada
Duration: Jun 22 2014Jun 26 2014

Other

OtherGround-Based and Airborne Instrumentation for Astronomy V
CountryCanada
CityMontreal
Period6/22/146/26/14

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Keywords

  • CCD
  • Ground based instrumentation
  • Orthogonal Transfer Array
  • wide field imaging

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Harbeck, D. R., Boroson, T., Lesser, M. P., Rajagopal, J., Yeatts, A., Corson, C., ... Hunten, M. (2014). The WIYN one degree imager 2014: Performance of the partially populated focal plane and instrument upgrade path. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 9147). [91470P] SPIE. https://doi.org/10.1117/12.2056651