https://doi.org/10.1351/goldbook.R05046
@[email protected] emitted, transferred or received as radiation. SI unit is \(\text{J s}^{-1} = \text{W}\).
Notes:
- Mathematical definition: \(P = \text{d}Q/\text{d}t\). If the @[email protected] \(Q\) is constant over the time interval, \(P = Q/t\).
- In @[email protected], flux (\(\varPhi\)) is used with the same units as \(P\). The symbol \(\varPhi\) is reserved for @[email protected] in @[email protected] Therefore, the use of flux (\(\varPhi\)) is not recommended.