Noise analysis of a CCD based ultra-violet spectrometry system

J. J. Davenport; J. Hodgkinson; J. R. Saffell; R. P. Tatam

doi:10.1117/12.922328

9 May 2012 Noise analysis of a CCD based ultra-violet spectrometry system

J. J. Davenport, J. Hodgkinson, J. R. Saffell, R. P. Tatam

Proceedings Volume 8439, Optical Sensing and Detection II; 84391P (2012) https://doi.org/10.1117/12.922328
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We present the results of a study into the noise behaviour of an Avaspec-3648 CCD UV spectrometer for use in a spectroscopic gas detection system. A comparison was made between a deuterium UV lamp and a range of newly developed UV LEDs. A number of noise phenomena were identified and quantified including source fluctuation noise, photo-response non-uniformity (PRNU), dark current noise, fixed pattern noise (FPN) and read noise. For spectral measurements the dominant noise phenomenon was PRNU, giving a noise equivalent absorption (NEA) of 8 x 10^-3 AU. A set of noise limitation techniques is presented, which decreases the NEA to 2 x 10^-3 AU.

Citation Download Citation

J. J. Davenport, J. Hodgkinson, J. R. Saffell, and R. P. Tatam "Noise analysis of a CCD based ultra-violet spectrometry system", Proc. SPIE 8439, Optical Sensing and Detection II, 84391P (9 May 2012); https://doi.org/10.1117/12.922328

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