A multisource volumetric spectral computed tomography imaging device includes an x-ray source array with multiple spatially distributed x-ray focal spots, an x-ray beam collimator with an array of apertures, each confining the radiation from a corresponding x-ray focal spot to illuminate a corresponding segment of an object, a digital area x-ray detector, and a gantry to rotate the x-ray source array and the detector around the object. An electronic control unit activates the radiations from the x-ray focal spots to scan the object multiple times as the gantry rotates around the object. The images are used to reconstruct a volumetric CT image of the object with reduced scattered radiation. For dual energy and multi energy imaging, radiation from each focal spot is filtered by a corresponding spectral filter to optimize its energy spectrum.

An X-ray computed tomography (CT) scanner includes a plurality of X-Ray sources and detectors mounted about an opening where scanning takes place. The X-Ray sources and detectors are arranged to oscillate back and forth in opposing first and second rotational directions about the opening, or in the same rotational direction about the opening, in order to generate a cross-sectional image of an object located within the opening.

An X-ray imaging apparatus of the present invention includes an X-ray irradiation unit including an X-ray tube for irradiating a subject with X-rays, an X-ray detection unit including an X-ray detector arranged at a position facing the X-ray tube across the subject and detecting the X-rays passed through the subject, a base on which the subject is placed, the base arranged between the X-ray tube and the X-ray detector, a rotation mechanism including a ring-shaped frame rotatably configured around the base and a control unit for controlling rotation of the ring-shaped frame and irradiation of the X-rays from the X-ray tube. The X-ray irradiation unit and the X-ray detection unit are provided to the ring-shaped frame and the X-ray tube is positioned outside the ring-shaped frame.