IUPAC - received radiant flux density (08280)

received radiant flux density symbols: $I$ , $E$ , $ϕ_{0}$ , unit: $W m^{- 2}$

Synonyms: incident flux density, irradiance

https://doi.org/10.1351/goldbook.08280

Radiant power incident on unit area.

Notes:

SI unit: $W m^{- 2}$ .
In atomic absorption spectroscopy incident flux density at a given wavelength is given the symbol $ϕ_{0} (λ)$ .

Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 670 [Terms] [Paper]

Citation: 'received radiant flux density' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08280 RIS BibTex EndNote

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Version 3.0.1 (6776 Terms)

received radiant flux density symbols: $I$ , $E$ , $ϕ_{0}$ , unit: $W m^{- 2}$

Alphabetical Index

Additional Indexes

Version 3.0.1 (6776 Terms)

received radiant flux density symbols: I, E, ϕ0, unit: Wm−2

received radiant flux density symbols: $I$ , $E$ , $ϕ_{0}$ , unit: $W m^{- 2}$