Radiant exposure

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Radiant exposure (at a point of a surface)

The product of an irradiance (Ee) and its duration (dt).

Symbol He He = ?Ee.dt

Unit joule per square metre (J/m2)

Note: 1 Equivalent definition Surface density of the radiant energy received.

Note: 2 Formerly irradiation in English and irradiation in French.

Reference: C.I.E. (modified)

Note: 3 For further definitions see C.I.E.

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

English