Difference between revisions of "Brightness"
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</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. | '''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 14:02, 26 September 2017
Luminositél (Fr).
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]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.