Ct imaging system

A CT imaging system, comprising:

• an imaging channel, at least a part of the imaging channel extending along a first direction, wherein the imaging channel is configured to place an object to be imaged in an imaging process;
• M distributed X-ray sources arranged along a circumferential direction of the imaging channel, wherein at least one of the M distributed X-ray sources comprises q target spots for emitting rays, where M and q are positive integers greater than or equal to 2;
• and
• N detectors arranged along the circumferential direction of the imaging channel, wherein the N detectors are configured to detect rays emitted from the M distributed X-ray sources and penetrating the object to be imaged, where N is a positive integer greater than M,
• wherein the N detectors comprise first sub-detectors and second sub-detectors;
• wherein the CT imaging system comprises a plurality of imaging components, each of the plurality of imaging components comprises at least one distributed X-ray source and at least one first sub-detector;
• in the same imaging component, the distributed X-ray source and the first sub-detector are arranged face-to-face in a radial direction of the imaging channel, a plurality of target spots of the distributed X-ray source and at least a part of the first sub-detector are located in a same plane perpendicular to the first direction, and the radial direction is perpendicular to the first direction;
• and
• wherein at least one second sub-detector is provided on at least one side of the at least one distributed X-ray source in the first direction.