公开(公告)号：US11823860B1

公开(公告)日：2023-11-21

申请号：US18350953

申请日：2023-07-12

Applicant: CANON ANELVA CORPORATION

Inventor： Yoichi Ando

IPC: H01J35/00 ,  H01J35/08 ,  H01J35/14

CPC classification number: H01J35/08 ,  H01J35/153 ,  H01J2235/085

Abstract: An X-ray generating apparatus includes an electron gun, a target configured to generate X-rays by being irradiated with an electron beam emitted from the electron gun, and a controller configured to control a first mode for thinning the target by irradiating the target with an electron beam with a current adjusted within a first current range and a second mode for generating X-rays by irradiating the target with an electron beam with a current adjusted within a second current range. The first current range has a lower limit larger than an upper limit of the second current range.

公开(公告)号：US20230352260A1

公开(公告)日：2023-11-02

申请号：US18350953

申请日：2023-07-12

Applicant: CANON ANELVA CORPORATION

Inventor： Yoichi ANDO

IPC: H01J35/08 ,  H01J35/14

CPC classification number: H01J35/08 ,  H01J35/153 ,  H01J2235/085

Abstract: An X-ray generating apparatus includes an electron gun, a target configured to generate X-rays by being irradiated with an electron beam emitted from the electron gun, and a controller configured to control a first mode for thinning the target by irradiating the target with an electron beam with a current adjusted within a first current range and a second mode for generating X-rays by irradiating the target with an electron beam with a current adjusted within a second current range. The first current range has a lower limit larger than an upper limit of the second current range.

公开(公告)号：US20230290604A1

公开(公告)日：2023-09-14

申请号：US18140223

申请日：2023-04-27

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Atsushi ISHII ,  Ginji SUGIURA ,  Akihito KOBAYASHI

IPC: H01J35/14 ,  H05G1/02

CPC classification number: H01J35/153 ,  H05G1/025 ,  H01J2235/1291 ,  H01J2235/1216 ,  H01J2235/1245

Abstract: An X-ray module includes; a housing; an electron gun that emits an electron beam inside the housing; a target disposed inside the housing and fixed to the housing, to generate an X-ray when the electron beam is incident on the target; a permanent magnet that is disposed outside the housing and deflects the electron beam by means of a magnetic force; and a heat radiating unit having a higher thermal conductivity than a thermal conductivity of the permanent magnet and thermally connected to the permanent magnet.

公开(公告)号：US11728064B2

公开(公告)日：2023-08-15

申请号：US17218986

申请日：2021-03-31

Applicant: Empyrean Medical Systems, Inc.

Inventor： Kalman Fishman

IPC: A61N5/10 ,  G21K1/06 ,  H01J5/30 ,  H01J35/14 ,  A61B5/00 ,  H01J35/30 ,  A61B6/02

CPC classification number: G21K1/067 ,  A61B6/025 ,  A61N5/1042 ,  A61N5/1043 ,  A61N5/1071 ,  G21K1/062 ,  H01J35/153 ,  H01J35/30 ,  A61N5/103 ,  A61N5/1031 ,  A61N2005/1054

Abstract: A radiation therapy device includes an electron beam source (EBS) for generating an electron beam and a steering device for directing the electron beam. A target is disposed a predetermined distance from the EBS and is positioned to intercept the electron beam. The target element generates x-ray photons upon the impact of electrons with the target. A focusing lens is coupled to and spaced from the target by no more than 10 mm, and is positioned to receive x-ray photons generated by the target. The focusing lens focuses the x-ray photons to a focal point. The radiation therapy device can also include targets configured to generate x-ray beams for tomosynthesis. A method for performing radiation therapy is also disclosed.

公开(公告)号：US11665806B2

公开(公告)日：2023-05-30

申请号：US16722887

申请日：2019-12-20

Applicant: Schlumberger Technology Corporation

Inventor： Jani Reijonen ,  Vincent Ernst

IPC: G01V5/10 ,  G01V5/12 ,  H05G1/52 ,  H01J35/14 ,  G01N23/203

CPC classification number: H05G1/52 ,  G01V5/10 ,  G01V5/12 ,  H01J35/153 ,  G01N2223/053 ,  G01N2223/063 ,  G01N2223/106 ,  G01N2223/1016 ,  G01N2223/304 ,  G01N2223/616

Abstract: The present disclosure relates to a downhole tool that includes a first photon flux detector disposed at a first radial position about a longitudinal axis of the downhole tool that measures a first signal indicative of an x-ray flux of the x-ray photons. The downhole tool also includes a second photon flux detector disposed at a second radial position about the longitudinal axis of the downhole tool that measures a second signal indicative of the x-ray flux of the x-ray photons. Further, the downhole tool includes a controller communicatively coupled to the first photon flux detector and the second photon flux detector that determines a condition associated with the electron beam based at least in part on a relative x-ray flux from the first photon flux detector and the second photon flux detector.

公开(公告)号：EP4425158A1

公开(公告)日：2024-09-04

申请号：EP23159987.9

申请日：2023-03-03

Applicant: Malvern Panalytical B.V.

Inventor： BECKERS, Detlef ,  MALYUTIN, Dmitriy ,  KHARCHENKO, Alexander

IPC: G01N23/20008 ,  H01J35/14

CPC classification number: G01N23/20008 ,  H01J35/153

Abstract: The present invention relates to an X-ray analysis apparatus and an X-ray method for analysing a sample. The X-ray analysis apparatus includes an X-ray source comprising an anode and a cathode, and configured to irradiate an irradiated area on a target surface of the anode. The X-ray analysis apparatus further includes a steering arrangement, a processor and a controller. The steering arrangement is configured to position the irradiated area on the target surface of the anode. The processor is configured to receive X-ray analysis information, and to determine a change in position of the irradiated area on the target surface based on the X-ray analysis information. The controller is configured to control the steering arrangement to move the irradiated area on the target surface according to the change in position determined by the processor.

公开(公告)号：EP4358112A3

公开(公告)日：2024-07-31

申请号：EP23198277.8

申请日：2023-09-19

Applicant: Carl Zeiss X-Ray Microscopy, Inc.

Inventor： FLACHENECKER, Claus

IPC: H01J35/14 ,  H01J35/30

CPC classification number: H01J35/153 ,  H01J35/30 ,  H05G1/52

Abstract: A method for controlling an x-ray source comprises generating an electron beam for striking the target to generate x-rays and steering the electron beam to a desired location on the target using a first and a second steering system distributed along a flight tube. In this way, the beam can be steering to the desired location while also passing through the center of a focusing lens to maintain optimal beam characteristics. Also possible is scanning the electron beam over the target to find a fiducial mark. Then, a desired location can be found as an offset from this mark.

公开(公告)号：EP4146078B1

公开(公告)日：2024-04-24

申请号：EP21721923.7

申请日：2021-04-29

IPC: A61B6/00 ,  H01J35/08 ,  G21K7/00 ,  H01J35/14 ,  H01J35/30

CPC classification number: A61B6/4021 ,  A61B6/4233 ,  H01J35/30 ,  H01J35/153 ,  G21K7/00

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：US20240266137A1

公开(公告)日：2024-08-08

申请号：US18598616

申请日：2024-03-07

Applicant: Empyrean Medical Systems, Inc.

Inventor： Kalman Fishman ,  Christopher W. Ellenor ,  Donald Olgado ,  Chwen-Yuan Ku ,  Tobias Funk ,  Petre Vatahov ,  Christopher R. Mitchell ,  Brian P. Wilfley

IPC: H01J35/14 ,  H01J35/16 ,  H01J35/30 ,  H01J35/32

CPC classification number: H01J35/153 ,  H01J35/16 ,  H01J35/30 ,  H01J35/32 ,  H01J2235/086 ,  H01J2235/166

Abstract: Systems and methods for generating X-ray photons. The methods comprise: generating an electron beam; positioning hollow pedestals in the path of the electron beam (the hollow pedestals being radially spaced apart from each other and extending out and away from a major planar face of a base plate); generating X-ray radiation as a result of an interaction of the electron beam with target element(s) disposed at a distal end of a respective pedestal of the hollow pedestals; causing the X-ray radiation to interact with a beam shield comprising wall elements extending out and away from the major planar face of the base plate; and setting at least one of a beam shape and direction of the X-ray radiation by selectively controlling a location where the electron beam intersects the target element(s) to determine an interaction of the X-ray radiation with the wall elements.