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Proceedings Paper

Reducing the read noise of H2RG detector arrays: eliminating correlated noise with efficient use of reference signals
Author(s): S. H. Moseley; Richard G. Arendt; D. J. Fixsen; Don Lindler; Markus Loose; Bernard J. Rauscher
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Paper Abstract

We present a process for characterizing the correlation properties of the noise in large two-dimensional detector arrays, and describe an efficient process for its removal. In the case of the 2k × 2k HAWAII-2RG detectors (H2RG) detectors from Teledyne which are being used on the Near Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope (JWST), we find that we can reduce the read noise by thirty percent. Noise on large spatial scales is dramatically reduced. With this relatively simple process, we provide a performance improvement that is equivalent to a significant increase in telescope collecting area for high resolution spectroscopy with NIRSpec.

Paper Details

Date Published: 30 July 2010
PDF: 9 pages
Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 77421B (30 July 2010); doi: 10.1117/12.866773
Show Author Affiliations
S. H. Moseley, NASA Goddard Space Flight Ctr. (United States)
Richard G. Arendt, NASA Goddard Space Flight Ctr. (United States)
D. J. Fixsen, NASA Goddard Space Flight Ctr. (United States)
Don Lindler, NASA Goddard Space Flight Ctr. (United States)
Markus Loose, Markury Scientific, Inc. (United States)
Bernard J. Rauscher, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 7742:
High Energy, Optical, and Infrared Detectors for Astronomy IV
Andrew D. Holland; David A. Dorn, Editor(s)

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