X-ray tube with warning device for accurately indicating impending failure of the thermionic emitter

US6426997B1 · kind B1 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Manfred Fuchs · Nuremberg, DE
• Erich Hell · Erlangen, DE
• Markus Schild · Herzogenaurach, DE
• Detlef Mattern · Erlangen, DE
• Peter Schardt · Simmerath, DE

Key dates

• Filing date: Mar 31, 2000
• Grant date: Jul 30, 2002
• Expiry date: Mar 31, 2020

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05G1/34
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention concerns an x-ray tube having a thermionic emitter and a warning means, which exhibits means for measuring as least one electrical property of the thermionic emitter and produces a signal during analysis of the measured electrical property, if the measured electrical property shows a value indicating an impending failure of the thermionic emitter.