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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.
In radiographic image intensification, the ratio of the number of light photons at the output phosphor to the number of photons at the input phosphor.
See also: gain