line-broadening

in atomic spectroscopy
https://doi.org/10.1351/goldbook.08503
Increase in the theoretical width of a spectral line owing to thermal motion of emitting atoms (Doppler effect), to electric field (Stark effect), to self-absorption and to pressure (Lorentz effect).
Note:
Line-broadening increases the measurement uncertainty of a measurement.
Source:
PAC, 2021, 93, 647. (Glossary of methods and terms used in analytical spectroscopy (IUPAC Recommendations 2019)) on page 724 [Terms] [Paper]
Citation: 'line-broadening' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.08503 RIS BibTex EndNote
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