公开(公告)号：US11961694B2

公开(公告)日：2024-04-16

申请号：US17238811

申请日：2021-04-23

Applicant: Carl Zeiss X-ray Microscopy, Inc.

Inventor： Claus Flachenecker

IPC: H01J35/02 ,  H05G1/06 ,  H05G1/30 ,  H05G1/32 ,  H05G1/34 ,  H05G1/52 ,  H05G1/56

CPC classification number: H01J35/025 ,  H05G1/06 ,  H05G1/30 ,  H05G1/32 ,  H05G1/34 ,  H05G1/52 ,  H05G1/56

Abstract: An x-ray source includes an optical communications link to provide a galvanically isolated communication between a system controller and a gun controller. In specific examples, the link is provided through one or more fibers. In addition, the gun controller is preferably remote programmed by the system controller during startup. This addresses the problem of reprogramming a processor in a hard to access location/environment. A watchdog timer is also useful for the gun digital processor of the gun controller.

公开(公告)号：US20240047167A1

公开(公告)日：2024-02-08

申请号：US17766245

申请日：2020-10-04

Applicant: NANO-X IMAGING LTD.

Inventor： NIR EDEN ,  AMIR BEN SHALOM ,  HITOSHI MASUYA

IPC: H01J35/02 ,  A61B6/03 ,  A61B6/00 ,  H01J35/06

CPC classification number: H01J35/025 ,  A61B6/032 ,  A61B6/4007 ,  A61B6/4488 ,  H01J35/065

Abstract: Systems and methods for improving x-ray sources with switchable electron emitters. Improved systems may use the functionality of the switchable electron emitters in various configurations to provide power regulation, multidimensional analysis, and electron beam forming so as to increase the durability and the reliability of the system. Cooling mechanisms may be used to further protect the anode from deterioration over time.

公开(公告)号：US11792908B2

公开(公告)日：2023-10-17

申请号：US17755520

申请日：2020-04-13

Applicant: NuRay Technology Co., Ltd.

Inventor： Huaping Tang ,  Jinsong Pan ,  Yangwei Zhan ,  Zhanfeng Qin ,  Qinghui Zhang ,  Xiangyu Yin

IPC: H05G1/70 ,  H05G1/56 ,  H05G1/26 ,  H01J35/02

CPC classification number: H05G1/70 ,  H05G1/265 ,  H05G1/56 ,  H01J35/025

Abstract: A time-division multiplexing control device applied to a distributed X-ray source includes: a first switch module with a number of first switches that receive a high-voltage signal and a first control signal, selectively turning on one of the plurality of first switches according to the first control signal and sending the high-voltage signal through the first switch turned on; and a cathode control module including a plurality of cathode control stages in one-to-one correspondence with the plurality of first switches, used for receiving the high-voltage signal from the first switch module and sending working state data through a cathode control stage corresponding to the first switch turned on in the plurality of cathode control stages, where each cathode control stage includes a cathode control unit and a cathode.

公开(公告)号：US20230245847A1

公开(公告)日：2023-08-03

申请号：US18154181

申请日：2023-01-13

Applicant: Rapiscan Holdings, Inc.

Inventor： Mark Procter ,  Steve Dodds ,  Michael Jenkins

IPC: H01J35/14 ,  G01T1/02 ,  G01T1/16 ,  H01J35/02

CPC classification number: H01J35/14 ,  G01T1/02 ,  G01T1/1606 ,  H01J35/025

Abstract: A linear accelerator in data communication with a computing device and a programmable logic controller and including a magnetron, an electron gun that is configured to direct an accelerated beam of electrons at a target thereby generating a beam of X-rays, a primary collimator positioned beyond the target in a direction of the beam of X-rays, a secondary collimator coupled to an end of the primary collimator at which the beam of X-rays exit the primary collimator, an attenuating element and a calorimeter positioned within the primary collimator, and a reference detector positioned within the secondary collimator and configured to measure an X-ray radiation dose output of the linear accelerator on a pulse-by-pulse basis.

公开(公告)号：US20230199934A1

公开(公告)日：2023-06-22

申请号：US17927087

申请日：2021-05-12

Applicant: MEIDENSHA CORPORATION

Inventor： Takumi HAYASHI

IPC: H05G1/32 ,  H01J35/02

CPC classification number: H05G1/32 ,  H01J35/025

Abstract: A high voltage generator including a Cockcroft-Walton circuit structured to receive alternating-current power supplied from an alternating-current power source and apply a potential difference to a load includes: three or more circuit boards arranged at intervals in a thickness direction thereof; capacitors, each of which is shaped flat and mounted to a corresponding one of the circuit boards; and diodes, each of which is connected to corresponding ones of the circuit boards. Out of the three or more circuit boards, each circuit board other than two circuit boards disposed at both ends of the arrangement of the three or more circuit boards includes indentations. Each of the diodes is disposed in a corresponding one of the indentations.

公开(公告)号：US20180158641A1

公开(公告)日：2018-06-07

申请号：US15856838

申请日：2017-12-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Koji Yamazaki ,  Yasue Sato ,  Kazuyuki Ueda

IPC: H01J35/16 ,  H01J9/395 ,  H01J5/26 ,  H01J9/26 ,  H01J35/20 ,  H01J35/02 ,  G01N23/02 ,  H01J9/36 ,  H01J9/32

CPC classification number: H01J35/16 ,  G01N23/02 ,  H01J5/26 ,  H01J9/26 ,  H01J9/32 ,  H01J9/36 ,  H01J9/395 ,  H01J35/025 ,  H01J35/20 ,  H01J2209/18 ,  H01J2209/26 ,  H01J2235/084

Abstract: The present invention relates to a radiation generating tube. The radiation generating tube includes an envelope including an insulating tubular member having at least two openings, a cathode connected to one of the openings of the insulating tubular member, and an anode connected to the other of the openings of the insulating tubular member. At least one of the cathode and the anode and the insulating tubular member are bonded at a bonded portion with an electrically conductive bonding member; and the bonded portion bonded with the electrically conductive bonding member is coated with a dielectric layer.

公开(公告)号：US20180033579A1

公开(公告)日：2018-02-01

申请号：US15717364

申请日：2017-09-27

Applicant: NIKON METROLOGY NV

Inventor： Roger HADLAND

IPC: H01J35/02 ,  H01J29/48 ,  F16C35/04 ,  F16C33/76 ,  F16J15/16 ,  H05G1/12 ,  H02M7/10 ,  H01J35/10 ,  H01J35/04 ,  H01J35/16 ,  H02M1/32

CPC classification number: H01J35/025 ,  F16C33/768 ,  F16C35/042 ,  F16J15/16 ,  H01J29/48 ,  H01J35/04 ,  H01J35/06 ,  H01J35/101 ,  H01J35/106 ,  H01J35/108 ,  H01J35/16 ,  H01J37/065 ,  H01J2235/0236 ,  H01J2235/083 ,  H01J2235/086 ,  H01J2235/087 ,  H01J2235/1046 ,  H01J2235/1204 ,  H01J2235/1262 ,  H01J2235/20 ,  H01J2237/2482 ,  H02M1/32 ,  H02M7/106 ,  H05G1/12

Abstract: Disclosed herein are a high-voltage generator for an x-ray source, an x-ray gun, an electron beam apparatus, a rotary vacuum seal, a target assembly for an x-ray source, a rotary x-ray emission target, and an x-ray source. These various aspects may separately and/or together enable the construction of an x-ray source which can operate at energies of up to 500 kV and beyond, which is suitable for use in commercial and research x-ray applications such as computerised tomography. In particular, the high-voltage generator includes a shield electrode electrically connected intermediate of a first voltage multiplier and a second voltage multiplier. The electron beam apparatus includes control photodetectors and photo emitters having a transparent conductive shield arranged therebetween. The rotary vacuum seal includes a pumpable chamber at a position intermediate between high-pressure and low-pressure ends of a bore for a rotating shaft. The rotary target assembly is configured such that when a torque between a bearing housing and a vacuum housing exceeds a predetermined torque, the bearing housing rotates relative to the vacuum housing. The rotary x-ray emission target has a plurality of target plates supported on a hub, the plates being arranged on the hub to provide an annular target region about an axis rotation of the hub. The x-ray gun is provided with a shield electrode maintained at a potential difference relative to the x-ray target different to the electron beam emission cathode.

公开(公告)号：US09653247B2

公开(公告)日：2017-05-16

申请号：US14490516

申请日：2014-09-18

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Huaping Tang ,  Chuanxiang Tang ,  Huaibi Chen ,  Wenhui Huang ,  Huayi Zhang ,  Shuxin Zheng ,  Jinsheng Liu

IPC: H01J35/06 ,  H01J35/02 ,  G21K1/087 ,  H01J35/14 ,  H01J35/04 ,  H01J35/10

CPC classification number: H01J35/025 ,  G21K1/087 ,  H01J35/02 ,  H01J35/045 ,  H01J35/06 ,  H01J35/10 ,  H01J35/14 ,  H01J2235/062 ,  H01J2235/068 ,  H01J2235/086 ,  H01J2235/087

Abstract: A two dimensional array distributed x-ray apparatus of this disclosure includes: a vacuum box which is sealed at its periphery, where the interior thereof is high vacuum; a plurality of electron transmitting units arranged in one plane in a two dimensional array on the wall of the vacuum box; an anode having targets corresponding to the plurality electron transmitting unit arranged in parallel with the plane of the plurality of electron transmitting units in the vacuum box; a power supply and control system having a high voltage power supply connected to the anode, a filament power supply connected to each of the plurality of the electron transmitting units, and a grid-controlled apparatus connected to each of the plurality of electron transmitting units; and a control system for controlling each power supply.

公开(公告)号：US20170032923A1

公开(公告)日：2017-02-02

申请号：US15216523

申请日：2016-07-21

Applicant: CANON KABUSHIKI KAISHA

Inventor： Koichi Tsunoda ,  Koji Yamazaki ,  Shuji Aoki ,  Kazuyuki Ueda

IPC: H01J35/18 ,  G01N23/04 ,  H05G1/30 ,  A61B6/00

CPC classification number: H01J35/18 ,  A61B6/40 ,  A61B6/4488 ,  G01N23/04 ,  H01J35/02 ,  H01J35/025 ,  H01J35/06 ,  H01J35/08 ,  H01J35/12 ,  H01J35/16 ,  H05G1/06

Abstract: Provided is an X-ray generating apparatus, which includes: an X-ray generating tube configured to emit X-rays through a first window; an outer case configured to contain the X-ray generating tube and provided with a second window transmitting the X-rays at a position facing the first window; an insulating fluid with which an unoccupied space of the outer case is filled; an insulating member located between the first window and the second window and provided with an opening in an irradiation area of the X-ray through the first window; and an insulating third window removably fit into the opening of the insulating member, wherein a linear expansion coefficient of the third window is greater than a linear expansion coefficient of the insulating member, and the third window and the first window face each other via a gap through which the insulating fluid is flowable.

Abstract translation: 本发明提供一种X射线产生装置，其包括：X射线产生管，被配置为通过第一窗口发射X射线; 外壳，其配置为容纳所述X射线产生管，并且设置有在面向所述第一窗口的位置处透射所述X射线的第二窗口; 绝缘流体，其中填充有外壳的空闲空间; 位于所述第一窗口和所述第二窗口之间并且在所述X射线的照射区域中通过所述第一窗口设置有开口的绝缘构件; 以及绝缘的第三窗口，其可拆卸地装配到绝缘构件的开口中，其中第三窗口的线性膨胀系数大于绝缘构件的线膨胀系数，并且第三窗口和第一窗口经由间隙彼此面对 绝缘流体可以通过该流体流动。

公开(公告)号：US09171693B2

公开(公告)日：2015-10-27

申请号：US13885759

申请日：2010-12-03

Applicant: Oscar Hemberg ,  Tomi Tuohimaa

Inventor： Oscar Hemberg ,  Tomi Tuohimaa

IPC: H05G1/08 ,  H01J35/02 ,  H01J35/18 ,  H01J35/08 ,  H01J35/00

CPC classification number: H01J35/18 ,  H01J35/00 ,  H01J35/02 ,  H01J35/025 ,  H01J35/08 ,  H01J2235/082 ,  H01J2235/168 ,  H01J2235/183 ,  H05G1/08

Abstract: An X-ray window including a primary and a secondary window element. In order to evaporate debris by ohmic heating, current flows through the secondary (upstream) window element. Meanwhile, electric charge originating from electron irradiation and/or depositing charged particles is to be drained off the window element. To prevent large debris particles from short-circuiting the window element and changing the desired heating pattern, the current for heating the window element flows through a layer which is insulated from the charge-drain layer.

Abstract translation: 包括主窗口元件和次窗口元件的X射线窗口。 为了通过欧姆加热来蒸发碎片，电流流过次级（上游）窗口元件。 同时，从电子照射和/或沉积带电粒子的电荷被排出窗元件。 为了防止大的碎屑颗粒使窗体元件短路并改变所需的加热模式，用于加热窗口元件的电流流过与电荷 - 漏极层绝缘的层。