Energy or amount of photons
absorbed per volume (or per mass) by an irradiated object during a particular exposure time.
SI units are
or
and
or
, respectively. Common units are
or
, respectively.
Note:
In medicine and in some other research areas (e.g.,
photopolymerization and water purification through
irradiation) dose is used in the sense of
exposure, i.e., the energy or amount of photons per surface area (or per volume)
impinging upon an irradiated object during a particular exposure time. This use is not recommended.
The terms
photon exposure and
radiant exposure are preferred.
Source:
PAC, 2007, 79, 293
(Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006))
on page 326
This definition replaces an earlier definition of dose.
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
