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photon flow, Φ p

The number of photons (quanta, N) per unit time. (d N d t, simplified expression: Φ p = N t when the number of photons is constant over the time considered). The SI unit is s −1. Alternatively, the term can be used with the amount of photons (mol or its equivalent einstein), the SI unit then being mol s −1.
See also: radiant power
Source:
PAC, 1996, 68, 2223 (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2263
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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.P04633.
Original PDF version: http://www.iupac.org/goldbook/P04633.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 The PDF version is out of date and is provided for reference purposes only.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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