Radiant energy

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Energy emitted, transferred or received as radiation.

Symbol Qe

Unit joule (J)

1 J = 1 watt-second (W.s)

1 J = 107erg

Reference: C.I.E.(modified)

Note: This quantity may be expressed in terms of the radiant flux (Fe) and the time of radiation (dt) by Qe = ?Fe .dt

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

English