Brightness: Difference between revisions
From Online Dictionary of Crystallography
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'''Brightness''' is defined as the flux per unit of solid angle of the radiation cone. It takes thus the beam divergence into account. The unit is p.p.s. <math>\times</math>mra<sup>2< | '''Brightness''' is defined as the flux per unit of solid angle of the radiation cone. It takes thus the beam divergence into account. The unit is p.p.s. <math>\times</math>mra<sup>2</sup>. Brightness is an appropriate parameter to use when comparing two X-ray sources with identical focal spot size, as the definition does not contain a unit area. | ||
Revision as of 14:01, 26 September 2017
Brightness is defined as the flux per unit of solid angle of the radiation cone. It takes thus the beam divergence into account. The unit is p.p.s. [math]\textstyle{ \times }[/math]mra2. Brightness is an appropriate parameter to use when comparing two X-ray sources with identical focal spot size, as the definition does not contain a unit area.