## radiant energy, $$Q$$

https://doi.org/10.1351/goldbook.R05039
The total energy emitted, transferred or received as radiation in a defined period of time ($$Q=\int Q_{\lambda } \ \mathrm{d}\lambda$$). It is the product of @[email protected], $$P$$, and time, $$t$$: $$Q=P\ t$$ when the @[email protected] is constant over the time considered.
Sources:
Green Book, 2nd ed., p. 30 [Terms] [Book]
ISO 31-05: 1992 [Terms] [Book]
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2268 [Terms] [Paper]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 988 [Terms] [Paper]