Brightness: Difference between revisions
From Online Dictionary of Crystallography
No edit summary |
Languages, category |
||
| Line 1: | Line 1: | ||
<Font color="blue"> | <Font color="orange">سطوع</Font> (''Ar''); <Font color="blue">Luminosité</Font> (''Fr''); <Font color="red">Helligkeit</Font> (''Ge''); <Font color="black">Luminosità</Font> (''It''); <Font color="purple">明度</Font> (''Ja''); <Font color="brown">Яркость</Font> (''Ru''); <Font color="green">Brillo</Font> (''Sp''). | ||
'''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. | ||
[[Category: X-rays]] | |||
Revision as of 14:10, 26 September 2017
سطوع (Ar); Luminosité (Fr); Helligkeit (Ge); Luminosità (It); 明度 (Ja); Яркость (Ru); Brillo (Sp).
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.