Abstract
The equation of Jacquinot for the output power P of spectrometers is generalized to include spectrographs. By means of the concepts of responsivity and detectivity, one may then compare spectrographs equipped with photographic and photomissive sensors.
If area A is an adjustable parameter, e.g., by choice of dispersion, slit height, emulsion resolution, or exit slit width, then/it is neither P nor P/A, but rather P/A1/2 that is to be maximized for best analytical precision or limit of detection.
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References
R. C. Jones, in Advances in Electronics V, Acad. Press, N.Y. 1953, p 27.
P. Jacquinot, Jour. Opt. Soc. Am. 44, 761 (1954).
R. C. Jones, Advances in Electronics V, Acad. Press, N.Y., 1953, p 76.
R. C. Jones, Advances in Electronics and Electron Physics 11, Acad. Press, N.Y., 1959, p 141.
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© 1971 Chicago Section of the Society for Applied Spectroscopy
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Johnson, G.L. (1971). Precision, Limit of Detection, and Signal-to-Noise Ratio. In: Grove, E.L., Perkins, A.J. (eds) Developments in Applied Spectroscopy. Developments in Applied Spectroscopy, vol 9. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0782-3_14
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DOI: https://doi.org/10.1007/978-1-4757-0782-3_14
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