Binning spectral images in a charge-coupled device

Patrick M. Epperson, M Bonner Denton

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

A charge-coupled device (CCD) can selectively combine photogenerated charge from several detector elements into a single charge packet via a special charge readout mode called binning. This article focuses on the use of charge binning in a two-dimensional CCD for Increasing the sensitivity and dynamic range of spectroscopic measurements. Binning allows the effective detector element size to be matched to the size of the silt image. Equations describing the signal-to-noise ratio and dynamic range of the binned readout of spectral lines are developed. Results of binning to increase the sensitivity of atomic emission and molecular fluorescence measurements are presented. An lntraspectral dynamic range of 500 000 is achieved by mixing binned and normal readout modes of a Hg atomic emission spectrum. Practical factors related to binning spectral Images including spectral line orientation, readout speed, and blooming are discussed.

Original languageEnglish (US)
Pages (from-to)1513-1517
Number of pages5
JournalAnalytical Chemistry
Volume61
Issue number14
StatePublished - 1989

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Charge coupled devices
Detectors
Silt
Signal to noise ratio
Fluorescence

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Binning spectral images in a charge-coupled device. / Epperson, Patrick M.; Denton, M Bonner.

In: Analytical Chemistry, Vol. 61, No. 14, 1989, p. 1513-1517.

Research output: Contribution to journalArticle

Epperson, PM & Denton, MB 1989, 'Binning spectral images in a charge-coupled device', Analytical Chemistry, vol. 61, no. 14, pp. 1513-1517.
Epperson, Patrick M. ; Denton, M Bonner. / Binning spectral images in a charge-coupled device. In: Analytical Chemistry. 1989 ; Vol. 61, No. 14. pp. 1513-1517.
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