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CORRECTION FACTORS IN CALCULATING ABSORBED LIGHT INTENSITIES

S. H. Jones, K. Salisbury

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Abstract

Abstract— A semi‐rigorous treatment for errors involved in correcting absorbed light intensities based on measurement of transmitted intensities is given. Several common systems are discussed: vapour system with a vapour actinometer, vapour system with a liquid actinometer, and liquid system with a liquid actinometer. In each case, correction factors have been calculated, which can be conveniently applied to the majority of quantitative photochemical systems. In addition, a treatment is given for the case where a separate cell containing the actinometer is used in place of a photodiode.

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What this paper is about

Abstract— A semi‐rigorous treatment for errors involved in correcting absorbed light intensities based on measurement of transmitted intensities is given. Several common systems are discussed: vapour system with a vapour actinometer, vapour system with a liquid actinometer, and liquid system with a liquid actinometer. In each case, correction factors have been calculated, which can be conveniently applied to the majority of quantitative photochemical systems. In addition, a treatment is given for the case where a separate cell containing the actinometer is used in place of a photodiode.

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Available abstract

Abstract— A semi‐rigorous treatment for errors involved in correcting absorbed light intensities based on measurement of transmitted intensities is given. Several common systems are discussed: vapour system with a vapour actinometer, vapour system with a liquid actinometer, and liquid system with a liquid actinometer. In each case, correction factors have been calculated, which can be conveniently applied to the majority of quantitative photochemical systems. In addition, a treatment is given for the case where a separate cell containing the actinometer is used in place of a photodiode.

Key concepts: Actinometer, Chemistry, Photodiode, Optics, Physics, Plasma, Nuclear physics

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