公开(公告)号：US12165827B2

公开(公告)日：2024-12-10

申请号：US17915198

申请日：2021-01-12

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Hiroki Kawakami ,  Kazumi Kageyama ,  Yoshito Hasegawa

IPC: H01J35/18 ,  H01J35/08

Abstract: An X-ray generation device includes: an electron gun that emits an electron beam; a target portion in which a plurality of elongated targets that generate an X-ray because of incidence of the electron beam are disposed parallel to each other; a housing that accommodates the electron gun and the target portion; and an X-ray emission window provided in the housing to emit the X-ray generated in the target portion, to an outside of the housing. The targets are disposed on the target portion to face the electron gun at a predetermined inclination angle with respect to an emission axis of the electron beam. The X-ray emission window is disposed at a position where the X-ray generated in a direction perpendicular to the target portion is transmittable through the X-ray emission window, to face the target portion at a predetermined inclination angle.

公开(公告)号：US20240234076A9

公开(公告)日：2024-07-11

申请号：US18226510

申请日：2023-07-26

Applicant: National Technology & Engineering Solutions of Sandia, LLC

Inventor： Courtney Leigh Hummell Sovinec ,  Edward Steven Jimenez, Jr. ,  Noelle Melissa Collins ,  Gabriella Dalton ,  Kyle R. Thompson ,  Amber Lynn Dagel

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

CPC classification number: H01J35/112 ,  H01J35/064 ,  H01J35/14

Abstract: A multi-metal patterned anode for an X-ray detector is provided. The anode comprises a substrate and at least one group of disjointed circular features formed on the substrate, wherein the circular features are made from different metals. The circular features in different groups have different radii, and the circular features in the same group have the same radii. The groups of circular features are radially arrayed on the substrate. The substrate is made of diamond or beryllium.

公开(公告)号：US20240234074A9

公开(公告)日：2024-07-11

申请号：US18070197

申请日：2022-11-28

Applicant: AweXome Ray, Inc.

Inventor： Hong Soo CHOI ,  Young Bae KIM ,  Hyeongu CHO ,  Namkyu LEE ,  Keunsoo JEONG ,  Se Hoon GIHM ,  Jiwon CHOI

IPC: H01J35/06 ,  H01J1/304 ,  H01J35/08 ,  H01J35/14

CPC classification number: H01J35/065 ,  H01J1/304 ,  H01J35/08 ,  H01J35/14 ,  H01J2201/30469 ,  H01J2235/06

Abstract: An emitter, a field emission assembly, and an electromagnetic wave generator are provided, and the emitter is an emitter for emitting electrons in an electromagnetic wave generator and is in the form of a sheet in which a plurality of yarns including carbon nanotube (CNT) fibers are weaved.

公开(公告)号：US12005274B2

公开(公告)日：2024-06-11

申请号：US17697430

申请日：2022-03-17

Applicant: Varian Medical Systems, Inc.

Inventor： James Clayton

IPC: A61N5/10 ,  G21K1/093 ,  G21K1/10 ,  H01J35/08 ,  H01J35/10 ,  H01J35/14 ,  H01J35/22 ,  H01J35/30 ,  H05G2/00 ,  H05H9/00 ,  H05H9/04

CPC classification number: A61N5/1077 ,  A61N5/1043 ,  A61N5/1045 ,  A61N5/1047 ,  A61N5/1081 ,  G21K1/093 ,  G21K1/10 ,  H01J35/10 ,  H01J35/116 ,  H01J35/153 ,  H01J35/22 ,  H01J35/30 ,  H05G2/00 ,  H05H9/048 ,  A61N2005/1089

Abstract: A radiotherapy system includes an X-ray target configured to convert an incident electron beam into a therapeutic X-ray beam, a purging magnet configured to redirect unwanted particles emitted from the X-ray target away from the therapeutic X-ray beam, and a particle collector configured to absorb the unwanted particles subsequent to redirection by the purging magnet. The particle collector may be configured to dissipate at least 50% of the energy of the incident electron beam.

公开(公告)号：US11979972B2

公开(公告)日：2024-05-07

申请号：US17609655

申请日：2020-05-07

Applicant: Excillum AB

Inventor： Björn Hansson ,  Per Takman ,  Ulf Lundström ,  Tomi Tuohimaa

IPC: H05G2/00 ,  F04B15/02 ,  F04B17/03 ,  F04B17/04 ,  H01J35/08

CPC classification number: H05G2/006 ,  F04B15/02 ,  F04B17/03 ,  F04B17/04 ,  H01J35/112 ,  H01J2235/082 ,  H01J2235/1026

Abstract: A liquid metal jet X-ray source including an electromagnetic pump for pumping the liquid metal. The electromagnetic pump includes a core having a core diameter and an outer yoke with a thickness of at least 20% of the core diameter. Preferably, the thickness of the outer yoke is at least 20% of the core diameter plus 6% of a radial distance between an outside of the core and an inside of the yoke.

公开(公告)号：US11898971B2

公开(公告)日：2024-02-13

申请号：US17622535

申请日：2020-06-24

Applicant: SMS group GmbH ,  IMS Messsysteme GmbH

Inventor： Christian Klinkenberg ,  Ulrich Sommers ,  Helmut Klein ,  Alexandre Lhoest ,  Olivier Pensis ,  Horst Krauthäuser

IPC: G01N23/20008 ,  G01N23/205 ,  G01N23/207 ,  G01N23/20091 ,  H01J35/08 ,  H01J35/10

CPC classification number: G01N23/20008 ,  G01N23/205 ,  G01N23/207 ,  G01N23/20091 ,  H01J35/08 ,  H01J35/10 ,  H01J35/112 ,  H01J35/116 ,  G01N2223/056 ,  G01N2223/1016 ,  G01N2223/20 ,  G01N2223/315 ,  G01N2223/316 ,  G01N2223/606 ,  G01N2223/624

Abstract: A method and a device for determining the material properties of a polycrystalline, in particular metallic, product during production or quality control of the polycrystalline, in particular metallic, product by means of X-ray diffraction using at least one X-ray source and at least one X-ray detector. In this case, an X-ray generated by the X-ray source is directed onto a surface of the polycrystalline product and the resulting diffraction image of the X-ray is recorded by the X-ray detector. After exiting the X-ray source, the X-ray is passed through an X-ray mirror, wherein the X-ray is both monochromatized and focused, by the X-ray mirror, in the direction of the polycrystalline product and/or the X-ray detector, and then reaches a surface of the metallic product.

公开(公告)号：US20240021400A1

公开(公告)日：2024-01-18

申请号：US18333112

申请日：2023-06-12

Applicant: Moxtek, Inc.

Inventor： Kasey Otho GREENLAND ,  Todd S. PARKER

IPC: H01J35/06 ,  H01J35/08

CPC classification number: H01J35/064 ,  H01J35/116

Abstract: A planar filament for an x-ray tube can have a different cross-sectional area at different locations. In regions of smaller cross-sectional area, there can be higher current density, and thus increased heating and higher temperature of the wire. In regions of larger cross-sectional area, there can be lower current density, and thus decreased heating of the wire. Regions of larger cross-sectional area can also be stronger, thus reducing early filament failures. Wider regions can have increased area for electron emission. By adjusting the cross-sectional area and width of the wire at different locations, electron emission can be largely confined to a center of the filament, and filament life can increase.

公开(公告)号：US11869742B2

公开(公告)日：2024-01-09

申请号：US17604922

申请日：2020-04-26

Applicant: EUV LABS, LTD

Inventor： Aleksandr Yurievich Vinokhodov ,  Vladimir Vitalievich Ivanov ,  Konstantin Nikolaevich Koshelev ,  Mikhail Sergeyevich Krivokorytov ,  Vladimir Mikhailovich Krivtsun ,  Aleksandr Andreevich Lash ,  Vyacheslav Valerievich Medvedev ,  Yury Viktorovich Sidelnikov ,  Oleg Feliksovich Yakushev ,  Denis Alexandrovich Glushkov ,  Samir Ellwi ,  Oleg Borisovich Khristoforov

IPC: H01J35/10 ,  H01J35/18 ,  H01J35/08

CPC classification number: H01J35/10 ,  H01J35/08 ,  H01J35/105 ,  H01J2235/082 ,  H01J2235/165

Abstract: An X-ray beam is generated in an interaction zone of an electron beam and a target, the zone being an annular layer of a molten fusible metal in an annular channel of a rotating anode assembly. The channel has a surface profile which prevents slopping of the molten metal in the radial direction and in both directions along the rotation axis. The liquid-metal target forms a circular cylindrical surface due to the centrifugal force acting thereupon. The linear velocity of the target is preferably higher than 80 m/s; in a vacuum chamber, a changeable membrane made of carbon nanotubes is installed in the X-ray beam path and a protective screen with apertures for electron beam entry and X-ray beam exit is arranged around the interaction zone. The technical result consists in an X-ray source with increased power, brightness, lifetime and ease of use.

公开(公告)号：US11857805B2

公开(公告)日：2024-01-02

申请号：US17227156

申请日：2021-04-09

Applicant: Varian Medical Systems, Inc.

Inventor： Anuj Purwar ,  Dragos Constantin ,  James Clayton

IPC: A61N5/10 ,  H01J35/08 ,  H01J35/14

CPC classification number: A61N5/1044 ,  A61N5/10 ,  A61N5/103 ,  A61N5/1042 ,  A61N5/1043 ,  A61N5/1045 ,  A61N5/1047 ,  A61N5/1064 ,  A61N5/1065 ,  A61N5/1067 ,  A61N5/1077 ,  A61N5/1078 ,  A61N5/1081 ,  A61N5/1082 ,  H01J35/116 ,  H01J35/14 ,  A61N2005/1074 ,  A61N2005/1089 ,  A61N2005/1092 ,  A61N2005/1095

Abstract: Systems and methods provide a radiotherapy treatment by focusing an electron beam on an x-ray target (e.g., a tungsten plate) to produce a high-yield x-ray output with improved field shaping. A modified electron beam spatial distribution is employed to scan the x-ray target, such as a 2D periodic beam path, which advantageously lowers the temperature of the x-ray target compared to typical compact beam spatial distribution. As a result, the x-ray target can produce a high yield x-ray output without sacrificing the life span of the x-ray target. The use of a 2D periodic beam path allows a much colder x-ray target functioning regime such that more dosage can be applied in a short period of time compared to existing techniques.

公开(公告)号：US11833369B2

公开(公告)日：2023-12-05

申请号：US17528439

申请日：2021-11-17

Applicant: Imagine Scientific, Inc.

Inventor： Eric H. Silver

IPC: A61B6/00 ,  A61N5/10 ,  H05G2/00 ,  A61B6/02 ,  H01J35/08 ,  H01J35/18

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.