公开(公告)号：US11226298B2

公开(公告)日：2022-01-18

申请号：US16586386

申请日：2019-09-27

Applicant: Siemens Healthcare GmbH

Inventor： Steffen Kappler ,  Marcus Radicke ,  Jörg Freudenberger ,  Anja Fritzler ,  Peter Geithner ,  Peter Hackenschmied ,  Thomas Weber

IPC: G01N23/20 ,  G01N23/04 ,  G01N23/20008 ,  A61B6/00

Abstract: An x-ray imaging system includes an x-ray source configured to emit x-ray radiation towards a sample, and a primary detector configured to detect x-ray radiation from the x-ray source passing through the sample. The x-ray imaging system also includes a secondary detector configured to detect x-ray radiation from the x-ray source scattered in the sample, and imaging optics configured to guide x-ray radiation scattered in the sample onto the secondary detector.

公开(公告)号：US11955307B2

公开(公告)日：2024-04-09

申请号：US17734335

申请日：2022-05-02

Applicant: Siemens Healthcare GmbH

Inventor： Christoph Jud ,  Peter Hackenschmied ,  Joerg Freudenberger ,  Peter Geithner ,  Anja Fritzler

IPC: H01J35/06 ,  H05G1/54 ,  H05G1/70

CPC classification number: H01J35/065 ,  H05G1/54 ,  H01J2235/068 ,  H05G1/70

Abstract: At least one example embodiment provides an electron emitter apparatus having a first ring of field-effect emitter needles, the field-effect emitter needles of the first ring forming a first emitter surface on an inner side of the first ring; and a second ring of field-effect emitter needles, the field-effect emitter needles of the second ring forming a second emitter surface on an inner side of the second ring, wherein the first ring and the second ring are arranged in such that the first emitter surface and the second emitter surface form a substantially contiguous three-dimensional overall emitter surface, the substantially contiguous three-dimensional overall emitter surface defining a hollow channel along a longitudinal axis of the electron emitter apparatus.

公开(公告)号：US11075052B2

公开(公告)日：2021-07-27

申请号：US16585156

申请日：2019-09-27

Applicant: Siemens Healthcare GmbH

Inventor： Jörg Freudenberger ,  Anja Fritzler ,  Peter Geithner ,  Peter Hackenschmied ,  Thomas Weber

IPC: H01J35/08 ,  H01J35/10 ,  H05G1/02 ,  H05G1/04

Abstract: The present disclosure provides an x-ray device including a housing configured to provide a vacuum therein, a cathode arranged inside the housing and configured to emit electrons, an anode arranged inside the housing and configured to produce x-ray radiation when impacted by electrons emitted by the cathode, and a converter configured to convert the x-ray radiation produced by the anode into monochromatic x-ray radiation, wherein the anode is configured to produce x-ray radiation in transmission and is arranged between the cathode and the converter. The present disclosure may be used in medical imaging, therapy, spectroscopy, and the like. Geometries and configurations may be improved compared to previously known x-ray devices when it comes to requirements for space, materials used, complexity of electrical wiring, distance between cathode and anode, and providing supplementary functions.

公开(公告)号：US11901152B2

公开(公告)日：2024-02-13

申请号：US17874678

申请日：2022-07-27

Applicant: Siemens Healthcare GmbH

Inventor： Peter Geithner ,  Jörg Freudenberger ,  Christoph Jud ,  Anja Fritzler ,  Josef Deuringer ,  Peter Hackenschmied

IPC: H01J35/06 ,  H01J35/24 ,  A61B6/02 ,  A61B6/00 ,  H05G1/52

CPC classification number: H01J35/065 ,  H01J35/24 ,  A61B6/022 ,  A61B6/4007 ,  H01J35/064 ,  H01J2235/068 ,  H05G1/52

Abstract: Some example embodiments provide an x-ray tube for a stereoscopic imaging having an evacuated x-ray tube housing; an electron emitter apparatus in the x-ray tube housing, the electron emitter apparatus including a first field effect emitter with a first emitter surface and a second field effect emitter with a second emitter surface, at least one of the first emitter surface or the second emitter surface being segmented such that a portion of the at least one of the first emitter surface or the second emitter surface can be set relative to the respective overall emitter surface by selectively switching emitter segments of the at least one of the first emitter surface or the second emitter surface; an anode unit in the x-ray tube housing, the anode unit configured to generate x-ray radiation for the stereoscopic imaging as a function of electrons striking two focal points; and a control unit.

公开(公告)号：US20200187339A1

公开(公告)日：2020-06-11

申请号：US16585156

申请日：2019-09-27

Applicant: Siemens Healthcare GmbH

Inventor： Jörg Freudenberger ,  Anja Fritzler ,  Peter Geithner ,  Peter Hackenschmied ,  Thomas Weber

IPC: H05G1/02 ,  H05G1/04 ,  H01J35/10

Abstract: The present disclosure provides an x-ray device including a housing configured to provide a vacuum therein, a cathode arranged inside the housing and configured to emit electrons, an anode arranged inside the housing and configured to produce x-ray radiation when impacted by electrons emitted by the cathode, and a converter configured to convert the x-ray radiation produced by the anode into monochromatic x-ray radiation, wherein the anode is configured to produce x-ray radiation in transmission and is arranged between the cathode and the converter. The present disclosure may be used in medical imaging, therapy, spectroscopy, and the like. Geometries and configurations may be improved compared to previously known x-ray devices when it comes to requirements for space, materials used, complexity of electrical wiring, distance between cathode and anode, and providing supplementary functions.

公开(公告)号：US20200182806A1

公开(公告)日：2020-06-11

申请号：US16586386

申请日：2019-09-27

Applicant: Siemens Healthcare GmbH

Inventor： Steffen Kappler ,  Marcus Radicke ,  Jörg Freudenberger ,  Anja Fritzler ,  Peter Geithner ,  Peter Hackenschmied ,  Thomas Weber

IPC: G01N23/04 ,  G01N23/20008 ,  G01N23/2206

Abstract: An x-ray imaging system includes an x-ray source configured to emit x-ray radiation towards a sample, and a primary detector configured to detect x-ray radiation from the x-ray source passing through the sample. The x-ray imaging system also includes a secondary detector configured to detect x-ray radiation from the x-ray source scattered in the sample, and imaging optics configured to guide x-ray radiation scattered in the sample onto the secondary detector.