Dynamic bowtie filter and methods of using the same

An imaging system, comprising:

• a radiation source configured to emit radiation that traverses an examination region;
• a radiation detector array having a plurality of detectors configured to detect the radiation traversing the examination region;
• a dynamic bowtie filter disposed between the radiation source and the examination region, wherein the dynamic bowtie filter comprises a first half wedge and a separate and distinct second half wedge with a material free space therebetween;
• a first motor in mechanical communication with the first half wedge, wherein the first motor is configured to move the first half wedge;
• a second motor in mechanical communication with the second half wedge, wherein the second motor is configured to move the second half wedge;
• and
• a controller configured to independently control the first and second motors to move the first and second half wedges to increase or decrease a distance therebetween during an acquisition interval.