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spectral sensitivity, S λ

Referred to actinometers based on spectrophotometric measurements, S ac λ = Φ λ ɛ λ obs = sensitivity or actinometric factor. Φ λ is the quantum yield of the actinometer at the excitation wavelength and λ obs is the observation wavelength, which may be the same as or differ from the former.
PAC, 2007, 79, 293 (Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)) on page 426
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IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
Last update: 2014-02-24; version: 2.3.3.
DOI of this term: doi:10.1351/goldbook.ST07395.
Original PDF version: http://www.iupac.org/goldbook/ST07395.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
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