" /> spectral photon flux - CISMeF





Preferred Label : spectral photon flux;

Detailed label : spectral photon flux (photon irradiance), Epλ;

IUPAC definition : The photon irradiance E p, at wavelength λ per unit wavelength interval. The SI unit is s-1 m-3, but a commonly used unit is s-1 m-2 nm-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 m-3 and the common unit mol s-1 m-2 nm-1.;

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The photon irradiance E p, at wavelength λ per unit wavelength interval. The SI unit is s-1 m-3, but a commonly used unit is s-1 m-2 nm-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 m-3 and the common unit mol s-1 m-2 nm-1.

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29/07/2025


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