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1. 发明申请

US20150124931A1 CATHODE FILAMENT ASSEMBLY 有权
公开(公告)号：US20150124931A1
公开(公告)日：2015-05-07
申请号：US14397557
申请日：2013-05-21
申请人： Marcus Walter Foellmer , Zoryana Terletska , Stefan Hauttmann
发明人： Marcus Walter Foellmer , Zoryana Terletska , Stefan Hauttmann
IPC分类号： H01J35/14 , G01N23/04 , H01J9/18 , H01J35/06
CPC分类号： H01J35/06 , H01J1/18 , H01J1/92 , H01J9/042 , H01J35/14 , H01J35/165 , H01J37/065 , H01J2229/4824 , H01J2229/4831 , H01J2235/06 , H01J2237/032 , H01J2237/036 , H01J2237/038 , H01J2893/0006
摘要： The present invention relates to a cathode for an X-ray tube, an X-ray tube, a system for X-ray imaging, and a method for an assembly of a cathode for an X-ray tube. In order to provide a cathode with an improved and facilitated assembly, a cathode (10) for an X-ray tube is provided, comprising a filament (12), a support structure (14), a body structure (16), and a filament frame structure (18). The filament is provided to emit electrons towards an anode in an electron emitting direction (24), and the filament at least partially comprises a helical structure (26). Further, the filament is held by the support structure, which is fixedly connected to the body structure. The filament frame structure is provided for electron-optical focussing of the emitted electrons, and the filament frame structure is provided adjacent to the outer boundaries of the filament. The filament frame structure comprises frame surface portions arranged transverse to the emitting direction, and the filament frame structure is held by the support structure.
摘要翻译：本发明涉及一种用于X射线管的阴极，X射线管，X射线成像系统和用于组装X射线管的阴极的方法。为了提供具有改进和便利的组件的阴极，提供了一种用于X射线管的阴极（10），其包括灯丝（12），支撑结构（14），主体结构（16）和灯丝框架结构（18）。提供灯丝以在电子发射方向（24）向阳极发射电子，并且灯丝至少部分地包括螺旋结构（26）。此外，灯丝被固定地连接到主体结构的支撑结构保持。提供灯丝框架结构用于发射的电子的电子 - 光学聚焦，并且灯丝框架结构设置在灯丝的外边界附近。灯丝框架结构包括横向于发射方向布置的框架表面部分，并且灯丝框架结构由支撑结构保持。

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