X-ray radiator with rotating bulb tube with exteriorly profiled anode to improve cooling

US6426998B1 · kind B1 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Erich Hell · Erlangen, DE
• Detleff Mattern · Erlangen, DE
• Thomas Ohrndorf · Meckenheim, DE
• Peter Schardt · Simmerath, DE

Key dates

• Filing date: Jul 9, 1999
• Grant date: Jul 30, 2002
• Expiry date: Jul 9, 2019

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01J2235/1262
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An x-ray radiator has a housing containing a fluid coolant wherein a rotating bulb x-ray tube is rotatably seated, the rotating bulb x-ray tube having an evacuated vacuum housing containing a cathode and an anode, with the anode forming a wall of the vacuum housing and having an exterior charged by the coolant. The anode has a profiling at its exterior that enlarges the surface area contact between the exterior of the anode and the coolant. The profiling can be in the form of at least one channel proceeding from as a spiral from a central region of the anode toward its periphery.