brightness gain


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gain

 [gān]
the increase achieved by amplification of a signal.
brightness gain a factor in intensification of radiographs; minification factor multiplied by flux gain.
flux gain in radiology, acceleration of electrons that strike the output phosphor in radiology; it serves as a factor in the intensification of images.

brightness gain

[brīt′nes]
the increase in illumination level of a radiograph produced by an image intensifier. It is calculated as the minification gain multiplied by the flux gain. The product is the ratio of the number of photons at the output phosphor to the number at the input phosphor.

brightness gain

The increase in the intensity of a fluoroscopic image by the use of an image intensifier.
See also: gain