Patent ID: 7627082

Claim:
A radiological imaging apparatus comprising: a bed for laying a subject thereon; an image pickup device, comprising: a plurality of radiation detectors for detecting a plurality of radiations from said subject, wherein one certain radiation passed through a first radiation detector of said radiation detectors is detected by a second radiation detector of said radiation detectors; and an X-ray source for moving around said subject and irradiating X-rays to said subject, wherein said first and second radiation detectors are arranged in a plurality of layers in a direction away from said bed around said bed, wherein said first radiation detector which is the first layer from a bed side outputs a first detection signal of an X-ray passed through said subject, said X-ray being one of said certain radiation and a second detection signal of a γ-ray emitted from said subject, said γ-ray being another of said certain radiation; and a signal processing apparatus connected to said plurality of radiation detectors, for processing radiation detection signals detected by said radiation detectors.