natural broadening

of a spectral line
https://doi.org/10.1351/goldbook.N04087
Broadening which has its origin in the finite optical @L03515@ of one or both levels involved in the transition.
Sources:
Orange Book, 2nd ed., p. 121 [Terms] [Book]
PAC, 1985, 57, 1453. (Nomenclature, symbols, units and their usage in spectrochemical analysis - V: Radiation sources (Recommendations 1985)) on page 1463 [Terms] [Paper]
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). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014