公开(公告)号：US12046442B2

公开(公告)日：2024-07-23

申请号：US17177038

申请日：2021-02-16

Applicant: VEC Imaging GmbH & Co. KG

Inventor： Houman Jafari ,  Bo Gao ,  Vance Scott Robinson

IPC: H01J35/14 ,  H01J35/06 ,  H01J35/08 ,  H01J35/12 ,  H05G1/02

CPC classification number: H01J35/153 ,  H01J35/112 ,  H01J35/12 ,  H01J35/064 ,  H01J2235/068 ,  H01J2235/086 ,  H05G1/02

Abstract: Some embodiments include a system, comprising: a plurality of x-ray sources, each x-ray source including: an electron source configured to generate an electron beam; and a target configured to receive the electron beam and convert the electron beam into an x-ray beam; wherein: at first x-ray source of the x-ray sources is different from a second x-ray source of the x-ray sources; and the targets of the x-ray sources are part of a linear target.

公开(公告)号：US20240087833A1

公开(公告)日：2024-03-14

申请号：US18509608

申请日：2023-11-15

Applicant: CANON ANELVA CORPORATION

Inventor： Yoichi ANDO

IPC: G01N23/046 ,  H01J35/14

CPC classification number: G01N23/046 ,  H01J35/153 ,  H01J35/112

Abstract: An X-ray imaging apparatus includes an X-ray generation apparatus including an X-ray generation tube having an electron gun and a target configured to receive an electron beam from the electron gun to generate X-rays, a support structure supporting the tube, and a deflector configured to deflect the electron beam, an X-ray detector configured to detect the X-rays from the X-ray generation apparatus, and a control apparatus configured to control the X-ray generation apparatus. The support structure supports the tube to permit at least the target to be pivoted in a state in which the deflector is fixed, and the control apparatus determines, based on use amount of the X-ray generation apparatus and/or change of the X-rays generated by the X-ray generation apparatus, whether it is necessary to pivot the target.

公开(公告)号：US20240006144A1

公开(公告)日：2024-01-04

申请号：US17855739

申请日：2022-06-30

Applicant: Varex Imaging Corporation

Inventor： Dave Kirkham ,  Colton B. Woodman

IPC: H01J35/06 ,  H01J35/14 ,  H01J35/08

CPC classification number: H01J35/065 ,  H01J35/147 ,  H01J35/112

Abstract: An x-ray tube, comprising: a field emitter including an emission surface; an anode; and a focus electrode disposed between the field emitter and the anode; wherein: the focus electrode includes: a first surface that is substantially perpendicular to the field emitter emission surface and nearest to the field emitter; a second surface that is axially nearest to the anode, wherein the field emitter and the anode form an axis; and a third surface that extends between the first surface and the second surface; and a first location on the focus electrode between the first surface and the third surface is further from the anode than a second location on the focus electrode between the third surface and the second surface.

公开(公告)号：US20240334582A1

公开(公告)日：2024-10-03

申请号：US18580080

申请日：2022-08-23

Applicant: NANYANG TECHNOLOGICAL UNIVERSITY

Inventor： Liang Jie WONG ,  Sunchao HUANG ,  Christopher Brian BOOTHROYD

IPC: H05G1/30 ,  H01J35/08 ,  H01J35/18

CPC classification number: H05G1/30 ,  H01J35/112 ,  H01J35/18 ,  H01J2235/086 ,  H01J2235/088

Abstract: A method of generating X-ray emission, and a system for generating X-ray emission are provided. The method comprises the steps of generating a beam of free electrons using an electron source; directing the beam of free electrons onto a crystalline material having a periodic material structure; generating X-ray emission as a result of the interaction between the free electrons and the crystalline material; and extracting a portion of the X-ray emission for providing an X-ray beam having a selected photon energy; wherein the selected photon energy is tunable by controlling, at least, a tilt angle of the crystalline material relative to the beam of free electrons.

公开(公告)号：US12106927B2

公开(公告)日：2024-10-01

申请号：US18509608

申请日：2023-11-15

Applicant: CANON ANELVA CORPORATION

Inventor： Yoichi Ando

IPC: H01J35/14 ,  H01J35/08 ,  H01J35/16 ,  H01J35/24 ,  G01N23/046

CPC classification number: H01J35/153 ,  H01J35/116 ,  H01J35/16 ,  H01J35/24 ,  G01N23/046 ,  H01J35/112

Abstract: An X-ray imaging apparatus includes an X-ray generation apparatus including an X-ray generation tube having an electron gun and a target configured to receive an electron beam from the electron gun to generate X-rays, a support structure supporting the tube, and a deflector configured to deflect the electron beam, an X-ray detector configured to detect the X-rays from the X-ray generation apparatus, and a control apparatus configured to control the X-ray generation apparatus. The support structure supports the tube to permit at least the target to be pivoted in a state in which the deflector is fixed, and the control apparatus determines, based on use amount of the X-ray generation apparatus and/or change of the X-rays generated by the X-ray generation apparatus, whether it is necessary to pivot the target.

公开(公告)号：US11996259B2

公开(公告)日：2024-05-28

申请号：US17754998

申请日：2020-10-22

Applicant: NOVA MEASURING INSTRUMENTS INC.

Inventor： David A. Reed ,  Bruce H. Newcome ,  Bruno W. Schueler

IPC: H01J35/08 ,  G01N23/20008 ,  G01N23/207 ,  G01N23/2208 ,  G01N23/223 ,  H01J35/24

CPC classification number: H01J35/112 ,  G01N23/20008 ,  G01N23/207 ,  G01N23/2208 ,  G01N23/223 ,  H01J35/24 ,  G01N2223/045 ,  G01N2223/052 ,  G01N2223/056 ,  G01N2223/072 ,  G01N2223/076 ,  G01N2223/085 ,  G01N2223/1016 ,  G01N2223/204 ,  G01N2223/611 ,  H01J2235/081 ,  H01J2235/084 ,  H01J2235/086 ,  H01J2235/1204 ,  H01J2235/1291

Abstract: The present invention is intended to provide improved patterned X-ray emitting targets as well as X-ray sources that include patterned X-ray emitting targets as well as X-ray reflectance scatterometry (XRS) systems and also including X-ray photoelectron spectroscopy (XPS) systems and X-ray fluorescence (XRF) systems which employ such X-ray emitting targets.

公开(公告)号：US20230352261A1

公开(公告)日：2023-11-02

申请号：US18346196

申请日：2023-06-30

Applicant: Varex Imaging Corporation

Inventor： Dave Kirkham ,  Vance Scott Robinson

IPC: H01J35/12 ,  H01J35/08

CPC classification number: H01J35/12 ,  H01J35/112

Abstract: Embodiments include a system, comprising: a vacuum enclosure; an anode support structure penetrating the vacuum enclosure and including a plurality of first cooling passages; and an anode disposed within the vacuum enclosure, coupled to and supported by the anode support structure, and including: a target; and a plurality of second cooling passages; wherein: each of the second cooling passages is coupled to a corresponding first cooling passage; the anode is coupled to the anode support structure on a side of the anode different from a side of the anode including the target and different from axial ends of the anode on a major axis of the anode; and the anode is a linear anode.

公开(公告)号：US12125660B2

公开(公告)日：2024-10-22

申请号：US17657958

申请日：2022-04-05

Applicant: CANON ELECTRON TUBES & DEVICES CO., LTD.

Inventor： Junki Sone

IPC: H01J35/06 ,  H01J9/18 ,  H01J35/08 ,  H01J35/16

CPC classification number: H01J35/06 ,  H01J9/18 ,  H01J35/112 ,  H01J35/16

Abstract: According to one embodiment, an X-ray tube includes an outer envelope that maintains a vacuum inside, an anode target provided inside the envelope and generating X-rays by collision of thermal electrons, and a cathode electron gun provided inside the envelope and emitting thermal electrons toward the anode target, and the X-ray tube includes an envelope assembly including a metal-made cylindrical support fixing portion and constituting the envelope, and an anode assembly including a metal-made support holding the cathode electron gun, and the support of the cathode assembly is fixed to an inner circumferential side thereof by welding.

公开(公告)号：US20240321542A1

公开(公告)日：2024-09-26

申请号：US18572420

申请日：2022-02-15

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Naonobu SUZUKI ,  Atsushi ISHII ,  Ryosuke YABUSHITA ,  Akimichi SHIMIZU ,  Naofumi KOSUGI ,  Ginji SUGIURA

IPC: H01J35/30 ,  H01J35/08 ,  H01J35/14 ,  H01J35/18

CPC classification number: H01J35/30 ,  H01J35/112 ,  H01J35/153 ,  H01J35/18

Abstract: An X-ray generation device includes: a housing; an electron gun including an electron-emitting unit that emits an electron inside the housing, and an extraction electrode for extracting the electron emitted from the electron-emitting unit; a target that generates an X-ray upon an incidence of the electron inside the housing; a window member that seals an opening of the housing and that transmits the X-ray; and a tube voltage application unit that applies a tube voltage between the electron-emitting unit and the target. A thickness of the target has a distribution, and the target is disposed to be inclined with respect to an imaginary plane orthogonal to an axis of the electron gun.

公开(公告)号：US20240252836A1

公开(公告)日：2024-08-01

申请号：US18527721

申请日：2023-12-04

Applicant: Imagine Scientific, Inc.

Inventor： Eric H. Silver

IPC: A61N5/10 ,  A61B6/00 ,  A61B6/02 ,  A61B6/40 ,  A61B6/42 ,  A61B6/50 ,  A61B6/58 ,  H01J35/08 ,  H01J35/18 ,  H05G2/00

CPC classification number: A61N5/1007 ,  A61B6/025 ,  A61B6/405 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/502 ,  A61B6/542 ,  A61B6/583 ,  A61N5/10 ,  H01J35/112 ,  H05G2/00 ,  A61N2005/1087 ,  H01J35/186 ,  H01J2235/086 ,  H01J2235/16

Abstract: According to some aspects, a carrier configured for use with a broadband x-ray source comprising an electron source and a primary target arranged to receive electrons from the electron source to produce broadband x-ray radiation in response to electrons impinging on the primary target is provided. The carrier comprising a housing configured to be removeably coupled to the broadband x-ray source and configured to accommodate a secondary target capable of producing monochromatic x-ray radiation in response to incident broadband x-ray radiation, the housing comprising a transmissive portion configured to allow broadband x-ray radiation to be transmitted to the secondary target when present, and a blocking portion configured to absorb broadband x-ray radiation.