Abstract: Disclosed herein are adaptive filters, radiographic systems, and methods for controlling the radiation exposure of a target object during a radiographic imaging procedure. An adaptive filter can comprise first and second dynamic collimators that block or attenuate radiation that is incident upon the collimators, but allow radiation to pass between the collimators to reach the target object and radiation detector. The collimators can move relative to each other during a radiation emission such that the motion of the collimators allows different amounts of radiation from the radiation source to pass between the two collimators to each portion of the target object during the radiation emission. The amounts of radiation allowed to reach each portion of the target object can be determined based on a thickness of each portion of the target object.

Abstract: Disclosed herein are adaptive filters, radiographic systems, and methods for controlling the radiation exposure of a target object during a radiographic imaging procedure. An adaptive filter can comprise first and second dynamic collimators that block or attenuate radiation that is incident upon the collimators, but allow radiation to pass between the collimators to reach the target object and radiation detector. The collimators can move relative to each other during a radiation emission such that the motion of the collimators allows different amounts of radiation from the radiation source to pass between the two collimators to each portion of the target object during the radiation emission. The amounts of radiation allowed to reach each portion of the target object can be determined based on a thickness of each portion of the target object.