Patent ID: 7421064
Filing Date: 2008-09-02
Classification: H01J,H05G

Abstract:
1. A water-cooled X-ray source for generating both a point focus and also a line focus, the source comprising: a radiation protection casing; an X-ray tube element inserted into said radiation protection casing, said X-ray tube element having an X-ray anode and a filament; a cooling plate having cooling water channels for cooling said X-ray anode, said cooling plate firmly connected to said radiation protective casing, said X-ray tube element structured to rotate relative to said cooling plate through at least 90° about an axis perpendicular to a plane of said cooling plate; a spray nozzle for cooling said X-ray anode, said spray nozzle having a slit running parallel to said filament and being connected to said X-ray tube element; channels to provide cooling water to said cooling plate, said cooling water channels firmly connected to said radiation protection casing and to said cooling plate; a first radial seal disposed between said cooling plate and said X-ray tube element to seal cooling water from surroundings; and a second radial seal disposed between said cooling plate and said X-ray tube element to seal cooling water flowing to said spray nozzle from returning cooling water, so that a sealing effect is also retained while rotating said X-ray tube element relative to said cooling plate.