Patent ID: 7813474

Claim:
A CT system comprising: a rotatable gantry having an opening for receiving a subject to be scanned; an x-ray source configured to project x-rays having multiple energies toward the subject; a generator configured to energize the x-ray source to a first voltage and configured to energize the x-ray source to a second voltage, the first voltage distinct from the second voltage; and a controller configured to: cause the generator to energize the x-ray source to the first voltage for a first duration; acquire imaging data for a first number of views during the first duration; after the first duration, cause the generator to energize the x-ray source to the second voltage for a second duration; acquire imaging data for a second number of views during the second duration; and wherein the first number of views and the second number of views are not equal and the first duration and the second duration are not equal.