Electron source

US9552955B2 · kind B2 · utility

Assignees

• Siemens Healthcare Limited · DE
• NuRay Technology Co., Ltd. · CN

Inventors

• Moritz Beckmann · Cary, US
• Walter Beyerlein · Bubenreuth, DE
• Andreas Böhme · Koblenzer Straße, DE
• Yuan-Tai Cheng · Taichung, TW
• Jens Fürst · Herzogenaurach, DE
• Markus Hemmerlein · Neunkirchen, DE
• Houman Jafari · Erlangen, DE
• Jürgen Oelschlegel · Koblenzer Straße, DE
• Qi Qiu · Chapel Hill, US
• Frank Sprenger · Cary, US

Key dates

• Filing date: Nov 7, 2011
• Grant date: Jan 24, 2017
• Expiry date: Mar 19, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01J2235/068
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An electron source includes a plurality of electron emission cathodes and at least one control electrode. A gate current regulator is provided for regulation of current flowing through the at least one control electrode.