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: spectral photon flow

See also: radiant power

Source:

PAC, 1996, 68, 2223 (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2263

Related index:

IUPAC > Gold Book > math/physics > quantities

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Cite as:
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. https://doi.org/10.1351/goldbook.

Last update: 2014-02-24; version: 2.3.3.

DOI of this term: https://doi.org/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 The PDF version is out of date and is provided for reference purposes only.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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