Goldbook title
IUPAC > Gold Book > alphabetical index > D > dose
Gold G Icon
Indexes Download


Energy or amount of photons absorbed per volume (or per mass) by an irradiated object during a particular exposure time. SI units are J m −3 or J g −1 and mol m −3 or mol g −1, respectively. Common units are einstein m −3 or einstein g −1, respectively.
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.
PAC, 2007, 79, 293 (Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)) on page 326
See also: UV dose, einstein
This definition replaces an earlier definition of dose.
Interactive Link Maps
First Level Second Level Third Level
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: (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
Last update: 2014-02-24; version: 2.3.3.
DOI of this term:
Original PDF version: The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
Current PDF version | Version for print | History of this term