Data and Instrumentation Analysis Techniques and Methods

Optimization of the multiple sampling and signal extraction in nondestructive exposures

[+] Author Affiliations
Bogna Kubik, Remi Barbier, Alain Castera, Eric Chabanat, Sylvain Ferriol, Gerard Smadja

Université de Lyon 1, CNRS/IN2P3, UMR5822 Institut de Physique Nucléaire de Lyon 4 Rue Enrico Fermi, Villeurbanne F-69003, France

J. Astron. Telesc. Instrum. Syst. 1(3), 038001 (Jul 29, 2015). doi:10.1117/1.JATIS.1.3.038001
History: Received November 22, 2014; Accepted June 25, 2015
Text Size: A A A

Abstract.  We derive the full covariance matrix equations for proper treatment of correlations in signal fitting procedures, extending the results from previous publications. The straight line fits performed with these matrices demonstrate that a significantly higher signal to noise is obtained when the fluence exceeds 1e/s/pixel, in particular in long (several hundreds of seconds) spectroscopic exposures. The improvement arising from the covariance matrix is particularly significant for the initial intercept of the fit at t=0, a quantity which provides a useful redundancy to cross check the signal quality. We demonstrate that the mode that maximizes the signal-to-noise ratio in all ranges of fluxes studied is the one that uses all the frames sampled during the exposure. While there is no restriction on the organization of frames within groups for fluences lower than 1e/s/pixel, the co-adding of frames should be avoided whenever the fluence exceeds this value.

Figures in this Article
© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Bogna Kubik ; Remi Barbier ; Alain Castera ; Eric Chabanat ; Sylvain Ferriol, et al.
"Optimization of the multiple sampling and signal extraction in nondestructive exposures", J. Astron. Telesc. Instrum. Syst. 1(3), 038001 (Jul 29, 2015). ; http://dx.doi.org/10.1117/1.JATIS.1.3.038001


Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Journal Articles

Related Book Chapters

Topic Collections

PubMed Articles
Transfer Study of Silver Nanoparticles in Poultry Production. J Agric Food Chem Published online Apr 24, 2017;
Gas Phase Sensing of Alcohols by Metal Organic Framework-Polymer Composite Materials. ACS Appl Mater Interfaces Published online Apr 25, 2017;
Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.