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Frequency analysis of the noise in the fowler(n) sampling of a H2RG(2Kx2K) near-IR detector

G. Smadja 1 C. Cerna 2 A. Castera 1 A. Ealet 2
1 IPNL - Institut de Physique Nucléaire de Lyon
2 CPPM - Centre de Physique des Particules de Marseille
Abstract : The readout noise of a H2RG HgCdTe NIR detector from Teledyne is measured at a temperature T=110K. It is shown that a Fowler mode with n = 240 allows to reach a noise of 2.63e (single read). A description of the power spectrum in terms of 3 parameters reproduces the variation of the noise as a function the number of Fowler samples, as well as its dependence on the periodicity of the sampling. The variance of the noise decreases with frequency with an effective power of 0.62 in our measurement domain. The behaviour of the detector under different experimental conditions can then be predicted
Keywords : Near Infrared Detectors Noise Power spectrum Wiener-Khintchin
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Journal articles
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http://hal.in2p3.fr/in2p3-00498217
Contributor : Danielle Cristofol <>
Submitted on : Wednesday, July 7, 2010 - 8:17:41 AM
Last modification on : Tuesday, November 19, 2019 - 2:38:23 AM

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G. Smadja, C. Cerna, A. Castera, A. Ealet. Frequency analysis of the noise in the fowler(n) sampling of a H2RG(2Kx2K) near-IR detector. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2010, 622, pp.288-294. ⟨10.1016/j.nima.2010.06.271⟩. ⟨in2p3-00498217⟩

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