https://doi.org/10.1351/goldbook.R05042
Radiant energy
, Notes:
- Equivalent definition: Irradiance,
integrated over the time ofirradiation. - Mathematical definition:
. If is constant over the area, . If is constant over the time interval, . - This term refers to a beam not scattered or reflected by the target or its surroundings. For a beam incident from all directions fluence (
, ) is an equivalent term.