Meaning of steradiancy | Babel Free

Definitions

The rate of radiation transfer from a surface for each steradian of solid angle in a specified direction per unit area of cross section of the radiation perpendicular to that direction

countable, uncountable

Examples

“Such sources usually attain brilliance by high current densities in small volumes. The total energy output may therefore be less than a greatly extended source of low steradiancy.”

“The geometry of the cone θ and the irradiance at the image of the carbon block were used to determine the absolute steradiancy of the energy in the cone θ as a radiometer calibration value.”

“[…] steradiancies seen by the instrument during calibration were between 45 and 55 percent higher than the calculated average steradiancies […]”

CEFR level