Illumination system for an atomic absorption spectral photometer

Details Illumination system for an atomic absorption spectral photometer Illumination system for an atomic absorption spectral photometer

1974-04-08

1976-02-10

Wibert, Ronald L.

Optics: measuring and testing

Oil testing

356256, G01J 310

Patent

active

039375765

ABSTRACT:
To compensate for the nonspecific absorption in an atomic absorption spectral photometer an auxiliary illuminating source is provided in addition to the principal illuminating source. The need for moving parts and mirrors is obviated by mounting the principal and auxiliary radiation sources in fixed positions along a common ray path. The auxiliary source is constructed so that it is optically transparent and mounted adjacent the optical input with the radiation concentrated in an emission center common to both sources coinciding with the emission center of the auxiliary source. The sources are pulsed so that they are energized alternately.

REFERENCES:
patent: 3825344 (1974-07-01), Bonne
Butler et al., Spectrochimica Acta, Vol. 21, July 1965, pp. 1207-1216.

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