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公开(公告)号：US12059286B2
公开(公告)日：2024-08-13
申请号：US17214486
申请日：2021-03-26
申请人： FUJIFILM Corporation
发明人： Ryo Imamura , Masayoshi Matsuura
CPC分类号： A61B6/56 , H05G1/10 , H05G1/32 , A61B6/4441
摘要： A radiography apparatus includes a drive circuit that drives a radiation source, an internal power supply that makes a current flow to the drive circuit at a first voltage, an external power supply that makes a current flow to the drive circuit at a second voltage different from the first voltage, a power feed controller that performs power feed to the drive circuit using at least one of the internal power supply or the external power supply, and a radiation output restriction unit that controls an output of radiation by a power supply to be used in the power feed to the drive circuit by the power feed controller.
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公开(公告)号：US20240237182A1
公开(公告)日：2024-07-11
申请号：US17925603
申请日：2022-11-03
申请人： REMEDI CO., LTD
发明人： Re Na LEE , Young Hwan KIM , Sung Ho CHO , Hyun Jun KIM
摘要： The present inventive concept provides a voltage generating apparatus for X-rays including a console that receives an X-ray irradiation signal to generate a control signal and detects the X-ray irradiation signal to generate a first detection signal, a pulse control unit that receives the control signal and the first detection signal from the console to generate a second detection signal and generates a pulse signal according to the control signal and the second detection signal, and a high voltage generating unit that generates a high voltage according to the pulse signal from the pulse control unit, and an X-ray generating apparatus having the same.
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公开(公告)号：US11683879B2
公开(公告)日：2023-06-20
申请号：US17316838
申请日：2021-05-11
申请人： Moxtek, Inc.
发明人： Rick Steck , Scott Hardy , Vincent F. Jones
摘要： A raster scanning x-ray source can be light and small, and can have high resolution. A raster-assembly can be attached directly to and can encircle an x-ray tube. The raster-assembly can adjoin or can be very close to the x-ray tube, resulting in a small and lightweight scanning x-ray source. X-rays can backscatter back into the x-ray tube instead of into a detector, thus improving resolution of the resulting image. A voltage-multiplier, which can be used with the x-ray source, can include separate voltage-multiplier-stages in a stack.
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公开(公告)号：US11606856B2
公开(公告)日：2023-03-14
申请号：US17691860
申请日：2022-03-10
申请人： AweXome Ray, Inc. , Sang Soo Kim
发明人： Sang Soo Kim , Hong Soo Choi , Se Hoon Gihm
摘要： Disclosed is an electromagnetic wave generator, comprising a tube comprising an anode, a cathode and at least one gate, a tube power supply circuit in which one side of an output terminal is connected to the anode, and the other side of the output terminal is connected to the cathode, and a gate controlling circuit in which at least one side of the output terminal is connected to the gate, wherein a first voltage value of one side of the output terminal of the tube power supply circuit and a second voltage value of the other side of the output terminal of the tube power supply circuit are different from each other with respect to a ground terminal of the tube power supply circuit.
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公开(公告)号：US11589447B2
公开(公告)日：2023-02-21
申请号：US17224605
申请日：2021-04-07
发明人： Tsung-Min Yang , Hung-Chiang Huang
摘要： A method and a device for driving high-voltage X ray tube with positive and negative pulses are disclosed comprises a microprocessor unit having a first output port and a second output port, respectively outputting a first and a second timing sequence of control signals, a high-voltage X ray tube, a first high-frequency voltage boost circuit outputting a first regulated high-voltage, a first high-voltage protection circuit, a second high-frequency voltage boost circuit outputting a second high-voltage, and a second high-voltage protection circuit. The first high and the second voltages are respectively, regulated by the first timing sequence of control signal and the second timing sequence of control signal. Both regulated high-voltages are, respectively, inputted to anode and cathode of the high-voltage X ray tube vias the high-voltage protected circuits.
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公开(公告)号：US20220346214A1
公开(公告)日：2022-10-27
申请号：US17691860
申请日：2022-03-10
申请人： Sang Soo KIM , AweXome Ray, Inc.
发明人： Sang Soo KIM , Hong Soo CHOI , Se Hoon GIHM
摘要： Disclosed is an electromagnetic wave generator, comprising a tube comprising an anode, a cathode and at least one gate, a tube power supply circuit in which one side of an output terminal is connected to the anode, and the other side of the output terminal is connected to the cathode, and a gate controlling circuit in which at least one side of the output terminal is connected to the gate, wherein a first voltage value of one side of the output terminal of the tube power supply circuit and a second voltage value of the other side of the output terminal of the tube power supply circuit are different from each other with respect to a ground terminal of the tube power supply circuit.
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公开(公告)号：US20220330412A1
公开(公告)日：2022-10-13
申请号：US17224605
申请日：2021-04-07
发明人： TSUNG-MIN YANG , Hung-Chiang HUANG
摘要： A method and a device for driving high-voltage X ray tube with positive and negative pulses are disclosed comprises a microprocessor unit having a first output port and a second output port, respectively outputting a first and a second timing sequence of control signals, a high-voltage X ray tube, a first high-frequency voltage boost circuit outputting a first regulated high-voltage, a first high-voltage protection circuit, a second high-frequency voltage boost circuit outputting a second high-voltage, and a second high-voltage protection circuit. The first high and the second voltages are respectively, regulated by the first timing sequence of control signal and the second timing sequence of control signal. Both regulated high-voltages are, respectively, inputted to anode and cathode of the high-voltage X ray tube vias the high-voltage protected circuits.
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公开(公告)号：US11234323B2
公开(公告)日：2022-01-25
申请号：US16656507
申请日：2019-10-17
发明人： Guoping Zhu , Patrick Joseph Kling , Jiawen Zhou , Tieshan Zhang , Jinglin Wu , Xu Chu
IPC分类号： H05G1/32 , H05G1/34 , A61B6/00 , H05G1/58 , A61B5/055 , A61B6/03 , G06T7/00 , G06T11/00 , H01J35/02
摘要： Systems and methods for medical imaging. The method may include acquiring a tube voltage switching waveform for a radiation source of a medical device. The method may include determining a tube current switching period based on the tube voltage switching waveform. The method may include determining a sampling period correlated with the tube current switching period. The method may include acquiring projection data according to the sampling period. The method may further include reconstructing an image based on the acquired projection data.
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公开(公告)号：US11201030B2
公开(公告)日：2021-12-14
申请号：US16627515
申请日：2018-05-29
发明人： Chengjun Tan , Wenhui Huang , Chuanxiang Tang , Qingxiu Jin , Dongsheng Zhang , Qun Luo , Donghai Liu , Luming Zhang , Peidong Wu
摘要： A distributed X-ray light source comprises: a plurality of arranged cathode assemblies used for emitting electron beams; an anode target used for receiving the electron beams emitted by the cathode assemblies; and compensation electrodes and focusing electrodes provided in sequence between the plurality of the cathode assemblies and the anode target, the compensation electrode being used for adjusting electric field strength at two ends of a grid structure in each cathode assembly, and the focusing electrode being used for focusing the electron beams emitted by the cathode assemblies, wherein the focusing electrode corresponding to at least one cathode assembly in the plurality of the cathode assemblies comprises a first electrode and a second electrode which are separately provided, and an electron beam channel is formed between the first electrode and the second electrode.
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公开(公告)号：US11114268B2
公开(公告)日：2021-09-07
申请号：US16073290
申请日：2016-12-28
发明人： Kazuya Tsujino
摘要： The present disclosure provides a reliable X-ray generating tube that forms a focus with a stable size and shape. The X-ray generating tube includes an electron gun including an electron emitting portion, a plurality of grid electrodes, and an insulating support member that supports the plurality of grid electrodes. The electron gun includes a conductive section that hides the insulating support member to prevent the insulating support member from being directly viewed from an electron through path of electrons emitted from the electron emitting portion and passing through the grid electrodes.
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