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91. 发明申请

WO2002067779A1 多線源型Ｘ線ＣＴ装置审中-公开
标题翻译：多辐射源X射线CT装置
公开(公告)号：WO2002067779A1
公开(公告)日：2002-09-06
申请号：PCT/JP2002/001837
申请日：2002-02-28
申请人：三菱重工業株式会社 , 三原一正 , 浦野晋 , 堀慶一 , 小倉真
发明人：三原一正 , 浦野晋 , 堀慶一 , 小倉真
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/4028 , A61B6/4488 , H01J35/025 , H01J35/04 , H01J35/08 , H01J2235/16
摘要： A multi-radiation source X-ray CT apparatus comprises a sensor array consisting of sensors arranged fixedly, a vacuum chamber arranged fixedly, and an X-ray generating unit provided inside the vacuum chamber. The X-ray generating unit comprises a cathode so arranged fixedly in the vacuum chamber in such a way as to surround the sensor array to emit an electron beam, an anode arranged fixedly in the vacuum chamber in such a way as to surround the sensor array to emit X rays upon reception of the electron beams, a gate array consisting of grid electrodes which are densely arranged fixedly between the cathode and the anode and having holes to allow the passage of the electron beams, a power source for impressing a bias voltage to the grid electrodes of the gate arrays, and a control means for selecting a grid electrode suitable for imaging out of the gate array depending on an imaging part of subject, and for controlling the power feed from the power source so as to cancel the bias voltage impressed on the selected grid electrode.
摘要翻译：多辐射源X射线CT装置包括传感器阵列，其由固定地布置的传感器，固定地布置的真空室和设置在真空室内的X射线产生单元组成。 X射线产生单元包括阴极，其以这样的方式固定地设置在真空室中，以便包围传感器阵列以发射电子束，阳极以这样的方式固定在真空室中，以便围绕传感器阵列在接收电子束时发射X射线，由栅电极构成的栅极阵列，其栅极密集地布置在阴极和阳极之间并且具有允许电子束通过的孔，用于施加偏置电压的电源栅极阵列的栅电极，以及用于根据被摄体的成像部分选择适合于从门阵列成像出来的栅电极的控制装置，以及用于控制来自电源的供电以便抵消偏置电压印在所选择的栅极上。

92. 发明授权

US11961694B2 Fiber-optic communication for embedded electronics in x-ray generator 有权
公开(公告)号：US11961694B2
公开(公告)日：2024-04-16
申请号：US17238811
申请日：2021-04-23
申请人： Carl Zeiss X-ray Microscopy, Inc.
发明人： Claus Flachenecker
IPC分类号： H01J35/02 , H05G1/06 , H05G1/30 , H05G1/32 , H05G1/34 , H05G1/52 , H05G1/56
CPC分类号： H01J35/025 , H05G1/06 , H05G1/30 , H05G1/32 , H05G1/34 , H05G1/52 , H05G1/56
摘要： 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.

93. 发明公开

US20240047167A1 SYSTEMS AND METHODS FOR IMPROVING X-RAY SOURCES WITH SWITCHABLE ELECTRON EMITTERS 审中-公开
公开(公告)号：US20240047167A1
公开(公告)日：2024-02-08
申请号：US17766245
申请日：2020-10-04
申请人： NANO-X IMAGING LTD.
发明人： NIR EDEN , AMIR BEN SHALOM , HITOSHI MASUYA
IPC分类号： H01J35/02 , A61B6/03 , A61B6/00 , H01J35/06
CPC分类号： H01J35/025 , A61B6/032 , A61B6/4007 , A61B6/4488 , H01J35/065
摘要： 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.

94. 发明授权

US11792908B2 Time-division multiplexing control device and system 有权
公开(公告)号：US11792908B2
公开(公告)日：2023-10-17
申请号：US17755520
申请日：2020-04-13
申请人： NuRay Technology Co., Ltd.
发明人： Huaping Tang , Jinsong Pan , Yangwei Zhan , Zhanfeng Qin , Qinghui Zhang , Xiangyu Yin
IPC分类号： H05G1/70 , H05G1/56 , H05G1/26 , H01J35/02
CPC分类号： H05G1/70 , H05G1/265 , H05G1/56 , H01J35/025
摘要： 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.

95. 发明公开

US20230245847A1 Systems and Methods for Real-Time Energy and Dose Monitoring of an X-Ray Linear Accelerator 审中-公开
公开(公告)号：US20230245847A1
公开(公告)日：2023-08-03
申请号：US18154181
申请日：2023-01-13
申请人： Rapiscan Holdings, Inc.
发明人： Mark Procter , Steve Dodds , Michael Jenkins
IPC分类号： H01J35/14 , G01T1/02 , G01T1/16 , H01J35/02
CPC分类号： H01J35/14 , G01T1/02 , G01T1/1606 , H01J35/025
摘要： 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.

96. 发明公开

US20230199934A1 HIGH VOLTAGE GENERATOR AND X-RAY GENERATOR 审中-公开
公开(公告)号：US20230199934A1
公开(公告)日：2023-06-22
申请号：US17927087
申请日：2021-05-12
申请人： MEIDENSHA CORPORATION
发明人： Takumi HAYASHI
IPC分类号： H05G1/32 , H01J35/02
CPC分类号： H05G1/32 , H01J35/025
摘要： 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.

97. 发明申请

US20180158641A1 RADIATION GENERATING TUBE, RADIATION GENERATING APPARATUS, RADIOGRAPHY SYSTEM AND MANUFACTURING METHOD THEREOF 审中-公开
公开(公告)号：US20180158641A1
公开(公告)日：2018-06-07
申请号：US15856838
申请日：2017-12-28
申请人： CANON KABUSHIKI KAISHA
发明人： Koji Yamazaki , Yasue Sato , Kazuyuki Ueda
IPC分类号： H01J35/16 , H01J9/395 , H01J5/26 , H01J9/26 , H01J35/20 , H01J35/02 , G01N23/02 , H01J9/36 , H01J9/32
CPC分类号： H01J35/16 , G01N23/02 , H01J5/26 , H01J9/26 , H01J9/32 , H01J9/36 , H01J9/395 , H01J35/025 , H01J35/20 , H01J2209/18 , H01J2209/26 , H01J2235/084
摘要： 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.

98. 发明申请

US20180033579A1 X-RAY SOURCE, HIGH-VOLTAGE GENERATOR, ELECTRON BEAM GUN, ROTARY TARGET ASSEMBLY, ROTARY TARGET, AND ROTARY VACUUM SEAL 有权
公开(公告)号：US20180033579A1
公开(公告)日：2018-02-01
申请号：US15717364
申请日：2017-09-27
申请人： NIKON METROLOGY NV
发明人： Roger HADLAND
IPC分类号： H01J35/02 , H01J29/48 , F16C35/04 , F16C33/76 , F16J15/16 , H05G1/12 , H02M7/10 , H01J35/10 , H01J35/04 , H01J35/16 , H02M1/32
CPC分类号： 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
摘要： 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.

99. 发明授权

US09653247B2 X-ray apparatus and a CT device having the same 有权
公开(公告)号：US09653247B2
公开(公告)日：2017-05-16
申请号：US14490516
申请日：2014-09-18
申请人： NUCTECH COMPANY LIMITED , TSINGHUA UNIVERSITY
发明人： Huaping Tang , Chuanxiang Tang , Huaibi Chen , Wenhui Huang , Huayi Zhang , Shuxin Zheng , Jinsheng Liu
IPC分类号： H01J35/06 , H01J35/02 , G21K1/087 , H01J35/14 , H01J35/04 , H01J35/10
CPC分类号： H01J35/025 , G21K1/087 , H01J35/02 , H01J35/045 , H01J35/06 , H01J35/10 , H01J35/14 , H01J2235/062 , H01J2235/068 , H01J2235/086 , H01J2235/087
摘要： 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.

100. 发明申请

US20170032923A1 X-RAY GENERATING APPARATUS AND RADIOGRAPHY SYSTEM 审中-公开
标题翻译： X射线发生装置和放射学系统
公开(公告)号：US20170032923A1
公开(公告)日：2017-02-02
申请号：US15216523
申请日：2016-07-21
申请人： CANON KABUSHIKI KAISHA
发明人： Koichi Tsunoda , Koji Yamazaki , Shuji Aoki , Kazuyuki Ueda
IPC分类号： H01J35/18 , G01N23/04 , H05G1/30 , A61B6/00
CPC分类号： H01J35/18 , A61B6/40 , A61B6/4488 , G01N23/04 , H01J35/02 , H01J35/025 , H01J35/06 , H01J35/08 , H01J35/12 , H01J35/16 , H05G1/06
摘要： 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.
摘要翻译：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。

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