Abstract

Improved methods for the measurement of spectral line intensities have been developed. Such techniques are based on the authors' modification of the partial Seidel function, referred to as B-functions. A conversion table for these is given. A scale calibrated in B-functions has been incorporated into a Hilger microphotometer enabling such values to be obtained directly without the use of conversion tables. B-values can be plotted directly on to the linear co-ordinate of semilog graph paper if the self-calibration method is used for evaluating line intensities, there is an attendant time saving and improvement in the accuracy of background extrapolation. A nomographic technique developed for use in conjunction with this scale, results in a rapid evaluation of line intensities but with some loss of precision. It is concluded that the technique will result in an improvement of some existing photometric methods.

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Intensity Measurements of Spectral Lines

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Digital Circuit for Measurement of Spectral Line Intensities

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J. Opt. Soc. Am. 51(6) 674-678 (1961)

The Measurement of the Intensity Ratios of Spectral Lines with Electron Multiplier Photo-Tubes

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J. Opt. Soc. Am. 37(3) 133-144 (1947)

Instruments and Methods Used for Measuring Spectral Light Intensities by Photography*

George R. Harrison
J. Opt. Soc. Am. 19(5) 267-316 (1929)