IEVref:
731-01-35
ID:
Language:
en
Status:
Obsolete
Term:
beam diameter
Synonym1:
beamwidth
[
Preferred
]
Synonym2:
Synonym3:
Symbol:
Definition:
distance between two diametrically opposed points where the irradiance is a specified fraction of the beam's peak irradiance
NOTE – Most commonly applied to beams that are circular or nearly circular in cross-section.
Publication
date
:
1991-10
Source
Replaces:
Internal notes:
2020-03-31: Editorial maintenance action approved via C00053: replace "cross section" by "cross-section". Leading article deleted. JGO
CO remarks:
TC/SC remarks:
VT remarks:
Domain1:
Domain2:
Domain3:
Domain4:
Domain5:
distance between two diametrically opposed points where the irradiance is a specified fraction of the beam's peak irradiance