Multi-segment anode target of the rotary anode type X-ray tube the anode disk segment has an inclination angle of its own with respect to a plane perpendicular to the rotation axis of the rotary anode, X-rays and having a rotating anode with a multi-segment anode target tube

摘要

The present invention relates to an X-ray tube for imaging power rating is improved, more particularly, to multi-segment anode target 102 'for the scanner system based on X-rays using a rotating anode X-ray source. X-ray tube, comprising a 'anode target 102 radiates X-rays when exposed to electron beam 105a incident on the surface of' the anode target 102, rotatably supported substantially disk-shaped rotary anode 102 having a rotational anode disk 102 is divided into two or more anode disk segments 102a and 102b, each disc segment was inclined at different acute angle α with respect to a plane perpendicular to the rotation shaft 103a of the rotary anode disk 102 by having a conical surface, having its own focal track width. Electron beam 105a control unit to pulse is provided to, selectable anode disk segment 102a or 102b having the α angle of inclination within a given angular range, or anode disk segments 102a or selectable set within one of 102b is adapted to pulse the electron beam 105a so as to have a duty cycle that takes switched-on state only when incident on any one of the electron beam. Controlling the pulse sequence of the electron beam makes it possible to select an optimum segment of the focal spot track 106b having an inclination angle α of possible minimum corresponding to an angular size β of the desired field of view, the maximum brightness It will help to achieve the focal spot 106 and a maximized power rating. An advantage of the present invention is an image quality which is improved compared with the conventional rotary anode.