Patent ID: 6934363
Filing Date: 2005-08-23
Classification: A61N,G21K

Abstract:
1. An X-ray computed tomography apparatus comprising: an X-ray source for emitting X-rays in a ray bundle propagating in a propagation direction; a radiation detector on which said X-rays are incident; a rotating part on which said X-ray source and said radiation detector are mounted for rotating said X-ray source and said detector around a rotational axis at a rotational speed of multiple revolutions per second; and a radiation diaphragm attached to said rotating part between said X-ray source and said radiation detector, said radiation diaphragm comprising an absorber element composed of a material that attenuates said X-rays propagating in said propagation direction and a mounting arrangement to which said absorber element is mounted for pivoting said absorber element around a pivoting axis in said mounting arrangement, said pivoting axis being transverse to said propagation direction, including a rotatably seated eccentric for generating a swivel motion for pivoting said absorber element.