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Upgrade and characterization of the OSIRIS imager detector
Author(s): Pauline Arriaga; Michael Fitzgerald; Chris Johnson; Jason Weiss; James E. Lyke
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Paper Abstract

Characterization of an instrument’s detector is an essential part of assessing the overall performance and ca- pabilities of an instrument. We present our efforts to characterize the HAWAII-2RG detector on the imager component of the OSIRIS instrument at W. M. Keck Observatory. In particular, we will report the detector’s read noise, dark current, linearity, and persistence. We find a gain of 2.16 ± 0.34, in good agreement with Teledyne’s reported gain of 2.15. The maximum read noise of the detector is 23.4 ± 1.3 e- decreasing with an increasing number of reads. We find an upper limit on the dark current of the detector to be < 0.021 e-/pix/s. The detector is also linear to the 1% level up to 44,500 e- and to the 5% level at 80,000 e-. The maximum well depth is measured to be 119,000 e-.

Paper Details

Date Published: 6 July 2018
PDF: 6 pages
Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107022U (6 July 2018); doi: 10.1117/12.2313101
Show Author Affiliations
Pauline Arriaga, Univ. of California, Los Angeles (United States)
Michael Fitzgerald, Univ. of California, Los Angeles (United States)
Chris Johnson, Univ. of California, Los Angeles (United States)
Jason Weiss, Univ. of California, Los Angeles (United States)
James E. Lyke, W. M. Keck Observatory (United States)


Published in SPIE Proceedings Vol. 10702:
Ground-based and Airborne Instrumentation for Astronomy VII
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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