Patent ID: 7184520
Filing Date: 2007-02-27
Classification: H01J

Abstract:
1. An x-ray device, comprising: (a) an evacuated enclosure; (b) an electron source disposed within said evacuated enclosure; (c) a target anode positioned within said evacuated enclosure to receive electrons from said electron source, and said target anode defining an axial opening; (d) a mechanical interface connected to said target anode and defining an axial opening substantially aligned with said axial opening defined by said target anode, and said mechanical interface defining a first substantially frustoconical surface; (e) a rotor stem having a threaded portion and including a support member, said target anode being mounted to said rotor stem so that said target anode abuts said support member and at least a portion of said rotor stem resides within said axial opening of said target anode; and (f) a nut configured to engage said threaded portion of said rotor stem, said nut defining at least one substantially annular slot and including a second substantially frustoconical surface, wherein the second substantially frustoconical surface contacts at least a portion of said first substantially frustoconical surface of said mechanical interface when said target anode is retained against said support member by said nut.