CT imaging system with multiple peak X-ray source

摘要

An x-ray source ( 32 ) for performing energy discrimination within an imaging system ( 10 ) includes a cathode-emitting device ( 82 ) emitting electrons and an anode ( 81 ) that has a target ( 80 ) whereupon the electrons impinge to generate an x-ray beam ( 93 ) with multiple x-ray quantity energy peaks ( 116 and 120 ). A method of performing energy discrimination in the imaging system ( 10 ) includes emitting the electrons. The x-ray beam ( 93 ) with the x-ray quantity energy peaks ( 116 and 120 ) is generated. The x-ray beam ( 93 ) is directed through an object ( 44 ) and is received. An x-ray image having multiple energy differentiable characteristics is generated in response to the x-ray beam ( 93 ).