A CT detector includes a first detector configured to convert radiographic
energy to electrical signals representative of energy sensitive
radiographic data and a second detector configured to convert
radiographic energy to electrical signals representative of energy
sensitive radiographic data and positioned to receive x-rays that pass
through the first detector. A logic controller is electrically connected
to the first detector and the second detector and is configured to
receive a logic output signal from the second detector indicative of an
amount of a saturation level of the first detector, compare the logic
output signal to a threshold value, and output, based on the comparison,
electrical signals from the first detector, the second detector, or a
combination thereof to an image chain.