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Title: Detailed modeling of the video signal and optimal readout of charge-coupled devices

Journal Article · · International Journal of Circuit Theory and Applications
DOI:https://doi.org/10.1002/cta.2784· OSTI ID:1674997
ORCiD logo [1];  [2];  [1];  [2];  [3];  [4];  [5];  [5]
  1. Univ. Nacional del Sur, Bahía Blanca (Argentina)
  2. Univ. Nacional del Sur, Bahía Blanca (Argentina); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Univ. Nacional del Sur, Bahía Blanca (Argentina); Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), Buenos Aires (Argentina)
  4. National Atomic Energy Commission (CNEA), Rio Negro (Argentina); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  5. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
+ Show Author Affiliations

This paper provides a practical design methodology to calculate an optimal filter for noise reduction in the readout of charge-coupled devices (CCDs) taking into account the charge transfer and feedthroughs due to capacitive coupling in the CCD. A detailed analysis of the dynamics of the video signal and charge transfer is presented, including the circuital modeling of the output stage of the CCD and the dynamics of the electronics in the video chain before the analog-to-digital (AD) converter. This model is used to compute an optimal filter that minimizes the variance of the pixel noise and uses the samples of the charge transfer, before the charge is fully settled. This is necessary to enhance the performance of previous results that also use optimal filters but do not use the transition samples, while also reducing the pixel readout time, resulting in faster readouts. As a proof of concept for the optimal filter, we present in this paper novel experimental results using a Skipper CCD, which has a floating sense node that allows to measure the charge packet an arbitrary number of times. However, this technique can be applied to any CCD that has a readout system that digitally samples the video signal.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1674997
Report Number(s):
FERMILAB-PUB-20-319-AE-SCD; oai:inspirehep.net:1806770; TRN: US2204187
Journal Information:
International Journal of Circuit Theory and Applications, Vol. 48, Issue 7; ISSN 0098-9886
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (15)

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journal August 2018
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journal December 2013
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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CCD
readout
optimal filter
minimum noise variance
charge transfer