The total energy emitted, transferred or received as radiation in a defined period
of time
(
).
It is the product of
radiant power,
,
and time,
:
when the
radiant power is constant over the time considered.
Source:
PAC, 1996, 68, 2223
(Glossary of terms used in photochemistry (IUPAC Recommendations 1996))
on page 2268
PAC, 1996, 68, 957
(Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations
1996))
on page 988
ISO 31-5: 1992
(Quantities and Units - Part 5: Electricity and Magnetism.)
