Patent ID: 8031832
Filing Date: 2011-10-04
Classification: A61B,G21K,H01J,H05G

Abstract:
1. A multi-beam x-ray device, comprising: a multi-beam x-ray tube having an interior circle and a plurality of focal spots, from which x-rays are respectively emitted, located along said circle, said circle being comprised of segments; an x-ray tube control unit that controls emission of x-rays from said multi-beam x-ray tube by activating emission of x-rays from individual ones of said focal spots to cause an x-ray beam to be emitted from respective focal spots; and a plurality of x-ray beam diaphragms located relative to said multi-beam x-ray tube respectively in each segment, each of said diaphragms comprising a diaphragm plate having a diaphragm aperture therein that limits the respective x-rays emitted from the respective focal spots, and mounted for rotation around a center of said circle, to place the diaphragm aperture in a path of the x-rays emitted by a currently-activated focal spot in the segment in which the diaphragm is located each diaphragm limiting the x-rays in said path to produce an x-ray beam that exits said x-ray tube.