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Proceedings Paper

Noise and zero point drift in 1.7μm cutoff detectors for SNAP
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Paper Abstract

We present the results of a detailed study of the noise performance of candidate NIR detectors for the proposed Super-Nova Acceleration Probe. Effects of Fowler sampling depth and frequency, temperature, exposure time, detector material, detector reverse-bias and multiplexer type are quantified. We discuss several tools for determining which sources of low frequency noise are primarily responsible for the sub-optimal noise improvement when multiple sampling, and the selection of optimum fowler sampling depth. The effectiveness of reference pixel subtraction to mitigate zero point drifts is demonstrated, and the circumstances under which reference pixel subtraction should or should not be applied are examined. Spatial and temporal noise measurements are compared, and a simple method for quantifying the effect of hot pixels and RTS noise on spatial noise is described.

Paper Details

Date Published: 20 June 2006
PDF: 16 pages
Proc. SPIE 6276, High Energy, Optical, and Infrared Detectors for Astronomy II, 62760R (20 June 2006); doi: 10.1117/12.672616
Show Author Affiliations
Roger Smith, California Institute of Technology (United States)
Christopher Bebek, Lawrence Berkeley National Lab. (United States)
Marco Bonati, California Institute of Technology (United States)
Matthew G. Brown, Univ. of Michigan (United States)
David Cole, Jet Propulsion Lab. (United States)
Gustavo Rahmer, California Institute of Technology (United States)
Michael Schubnell, Univ. of Michigan (United States)
Suresh Seshadri, Jet Propulsion Lab. (United States)
Gregory Tarle, Univ. of Michigan (United States)


Published in SPIE Proceedings Vol. 6276:
High Energy, Optical, and Infrared Detectors for Astronomy II
David A. Dorn; Andrew D. Holland, Editor(s)

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