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20 June 2006 Noise and zero point drift in 1.7μm cutoff detectors for SNAP
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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.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roger Smith, Christopher Bebek, Marco Bonati, Matthew G. Brown, David Cole, Gustavo Rahmer, Michael Schubnell, Suresh Seshadri, and Gregory Tarle "Noise and zero point drift in 1.7μm cutoff detectors for SNAP", Proc. SPIE 6276, High Energy, Optical, and Infrared Detectors for Astronomy II, 62760R (20 June 2006);


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