Patent · US Active

X-ray emitter and method for compensating for a focal spot movement

US10553389B2 · kind B2 · utility

2Cited by

3References

27Claims

0Family size

Assignee

Siemens Healthcare Limited · DE

Inventors

Florian HOLCH · Nuremberg, DE
Kai-Uwe Taubenreuther · Iphofen, DE
Thomas Weidinger · Erlangen, DE

Key dates

Filing date	Mar 6, 2018
Grant date	Feb 4, 2020
Priority date	—
Expiry date	Jul 4, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01J2235/10
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An X-ray emitter includes an anode rotatably mounted arranged inside a vacuum housing. It can be set into rotation by an electric drive. In the region of a focal spot, the anode can be exposed to an electron beam emitted by a cathode. According to an embodiment of the invention, a control unit is configured to activate an electromagnetic deflection unit that deflects the electron beam as a function of at least one operating parameter of the electric drive such that a movement of the focal spot, caused by electromagnetic fields of the electric drive, can be at least partly compensated for. An embodiment of the invention further relates to a method for compensating for a focal spot movement when X-ray emitters in operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.