fluence, \(F\), \(\varPsi \), \(H_{0}\)

At a given point in space, the @[email protected] incident on a small sphere divided by the cross-sectional area of that sphere. It is used in @[email protected] to specify the energy delivered in a given time interval (for instance by a @[email protected] pulse).
See also:
photon fluence
Green Book, 2nd ed., p. 31 [Terms] [Book]
ISO 31-05: 1992 [Terms] [Book]
See also:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2242 [Terms] [Paper]