Term: radiant energy, \(Q\)
https://doi.org/10.1351/goldbook.R05039

Definition:
The total energy emitted, transferred or received as radiation in a defined period of time (Q = ∫ Q λ ⁢ d λ). It is the product of radiant power, P, and time, t: Q = P t when the radiant power is constant over the time considered.

Related Terms:
1) radiant power (http://doi.org/10.1351/goldbook.R05046).

Source: Green Book, 2nd ed., p. 30 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)

Citation: 'radiant energy, \(Q\)' 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.R05039

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