line width

in M\u00f6ssbauer spectroscopy
https://doi.org/10.1351/goldbook.L03568
The full width at half maximum peak-height. The natural linewidth is the theoretical value of the full width at half maximum of the @N04241@, usually calculated from @L03515@ data.
Source:
PAC, 1976, 45, 211. (Nomenclature and Conventions for Reporting Mössbauer Spectroscopic Data) on page 213 [Terms] [Paper]