Patent Number: 
Section: claims

1. An X-ray imaging apparatus comprising:a tabletop on which an object to be inspected lies;an X-ray tube that irradiates X-ray onto the object;an X-ray detector that detects X-rays passed through the object;an arm that supports the X-ray tube and the X-ray detector;an arm rotating-moving mechanism that rotates and moves the arm;a tabletop rotating unit that rotates the tabletop around a predetermined axis; anda radiation-field control unit that controls a radiation field of X-rays irradiated onto the object in conjunction with a rotation of the tabletop rotated by the tabletop rotating unit, wherein the radiation-field control unit controls an aperture of an X-ray beam limiting device in conjunction with the rotation of the tabletop. 2. The apparatus according to claim 1, wherein the radiation-field control unit controls the radiation field of X-rays in conjunction with the rotation of the tabletop in real time during the rotation of the tabletop. 3. The apparatus according to claim 2, further comprising an link-control-instruction receiving unit that receives from an operator an instruction whether the radiation-field control unit controls the radiation field. 4. The apparatus according to claim 1, wherein the radiation-field control unit controls the radiation field in conjunction with the rotation of the tabletop based on a position of the tabletop after the rotation. 5. The apparatus according to claim 4, further comprising an link-control-instruction receiving unit that receives from an operator an instruction whether the radiation-field control unit controls the radiation field. 6. The apparatus according to claim 1, further comprising an link-control-instruction receiving unit that receives from an operator an instruction whether the radiation-field control unit controls the radiation field.