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1.发明申请公开(公告)号：US20200168426A1
公开(公告)日：2020-05-28
申请号：US16627527
申请日：2018-06-01
Applicant: Nuctech Company Limited , TSINGHUA UNIVERSITY
Inventor： Chengjun TAN , Wenhui HUANG , Chuanxiang TANG , Qingxiu JIN , Dongsheng ZHANG , Qun LUO , Donghai LIU , Luming ZHANG , Peidong WU
Abstract: An anode target comprises: a plurality of target structures, used for receiving an electron beam emitted by a cathode to generate a ray, the plurality of target structures being of three-dimensional structures having bevels; a copper cooling body, used for bearing the target structures and comprising an oxygen-free copper cooling body; a cooling oil tube, used for cooling the anode target; and a shielding layer, used for achieving a shielding effect and comprising a tungsten shielding layer. The anode target, the ray light source, the computed tomography scanning device, and the imaging method in the present application are able to enable all target spots on the anode target to be distributed on a straight line, imaging quality of a ray system is improved, and complexity of an imaging system is reduced.
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公开(公告)号：US20180190464A1
公开(公告)日：2018-07-05
申请号：US15856251
申请日：2017-12-28
Applicant: TSINGHUA UNIVERSITY , Nuctech Company Limited
Inventor： Wenhui HUANG , Dongsheng ZHANG , Qingxiu JIN , Chengjun TAN , Donghai LIU , Qun LUO , Chuanxiang TANG
IPC: H01J3/02
CPC classification number: H01J3/028 , H01J3/027 , H01J35/06 , H01J35/14 , H01J2235/068
Abstract: An electron gun, an X-ray source and a CT device are provided. The electron gun includes a body having a first end portion and a second end portion opposite to each other, wherein the first end portion is a connecting end portion; an internal cavity is formed in the body and has an opening positioned on the second end portion,d a cathode, a grid, a compensation electrode and a focus electrode, orderly arranged in the internal cavity in a direction from the first end portion to the second end portion.
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公开(公告)号：US20150084550A1
公开(公告)日：2015-03-26
申请号：US14487891
申请日：2014-09-16
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Chuanxiang TANG , Jiaru SHI , Qingxiu JIN , Huaibi CHEN , Wenhui HUANG
CPC classification number: H05H7/22 , H05H7/02 , H05H7/18 , H05H9/00 , H05H9/048 , H05H2007/027 , H05H2007/227
Abstract: The present disclosure discloses an electron linear accelerator system. In the present disclosure, a fast-switching dual-path microwave system is proposed, wherein, one path can be directly connected to an accelerating tube, and the other path can be input into the accelerating tube after a magnitude of the microwave power is changed by devices such as an attenuator, a power divider, a pulse compressor or even an amplifier etc., so as to achieve fast switch of the power input into the accelerator and adjust the energy output by the accelerator.
Abstract translation: 本公开公开了一种电子线性加速器系统。 在本公开中，提出了一种快速切换双路微波系统，其中一条路径可以直接连接到加速管，另一路径可以在微波功率的大小变化之后被输入到加速管中 通过诸如衰减器，功率分配器，脉冲压缩器或甚至放大器等的装置，以实现对输入到加速器中的功率输入的快速切换并且调节由加速器输出的能量。
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Patent Agency Ranking
公开(公告)号：US20200170097A1
公开(公告)日：2020-05-28
申请号：US16627515
申请日：2018-05-29
Applicant: Nuctech Company Limited , TSINGHUA UNIVERSITY
Inventor： Chengjun TAN , Wenhui HUANG , Chuanxiang TANG , Qingxiu JIN , Dongsheng ZHANG , Qun LUO , Donghai LIU , Luming ZHANG , Peidong WU
IPC: H05G1/32 , A61B6/03 , G01N23/046 , H01J35/14
Abstract: 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：US20200168428A1
公开(公告)日：2020-05-28
申请号：US16627531
申请日：2018-09-13
Applicant: Nuctech Company Limited , TSINGHUA UNIVERSITY
Inventor： Chengjun TAN , Wenhui HUANG , Chuanxiang TANG , Qingxiu JIN , Dongsheng ZHANG , Qun LUO , Donghai LIU , Luming ZHANG , Peidong WU
Abstract: An anode target, a ray light source, a computed tomography device, and an imaging method, which relate to the technical field of ray processing. The anode target comprises a first anode target, a second anode target, and a ceramic plate. The first anode target is used for enabling, by means of a first voltage carried on the first anode target, an electron beam emitted by a cathode to generate a first ray on a target spot of the first anode target. The second anode target is used for enabling, by means of a second voltage carried on the second anode target, an electron beam emitted by the cathode to generate a second tray on a target spot of the second anode. The ceramic plate is used for isolating the first anode target from the second anode target. By means of the anode target, the ray light source, the computed tomography device and the imaging method, dual-energy distributed ray imaging data can be provided and the imaging quality of a ray system can be improved.
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公开(公告)号：US20180190465A1
公开(公告)日：2018-07-05
申请号：US15856521
申请日：2017-12-28
Applicant: Tsinghua University , Nuctech Company Limited
Inventor： Wenhui HUANG , Dongsheng ZHANG , Qingxiu JIN , Chengjun TAN , Donghai LIU , Qun LUO , Chuanxiang TANG
CPC classification number: H01J35/06 , H01J35/08 , H01J35/14 , H01J35/16 , H01J2235/02 , H01J2235/068 , H05G1/02
Abstract: A cathode assembly, an X-ray source and a CT device are provided. The cathode assembly includes a ceramic plug having a first and second end portions. Four wiring terminals and a protruding positioning part are provided on the first end portion. An internal cavity is formed in the ceramic plug, and a cathode is provided therein. The cathode has a filament with a positive and negative electrode leads. A grid is provided on the second end portion and has a grid voltage signal line. The cathode has a cathode surface lead. The positive electrode lead, the negative electrode lead, the grid voltage signal line and the cathode surface lead are electrically connected to one of the wiring terminals, respectively. The ceramic socket has four wiring tubes which may be electrically connected with the four wiring terminals.
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公开(公告)号：US20150084549A1
公开(公告)日：2015-03-26
申请号：US14487960
申请日：2014-09-16
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Huaibi CHEN , Jianping CHENG , Shuxin ZHENG , Jiaru SHI , Chuanxiang TANG , Qingxiu JIN , Wenhui HUANG , Yuzheng LIN , Dechun TONG , Shi WANG
IPC: H05H9/04
CPC classification number: H05H9/04 , H05H9/048 , H05H2007/027
Abstract: The present disclosure discloses a method for controlling a standing wave accelerator and a system thereof. The method comprises: generating, by an electron gun, an electron beam; injecting the electron beam into an accelerating tube; and controlling a microwave power source to generate and input microwave with different frequencies into the accelerating tube, so that the accelerating tube switches between different resonant modes at a predetermined frequency to generate electron beams with corresponding energy. According to the above solution, it only needs to change the output frequency of the microwave power source in the process of adjusting energy, without making any change to the accelerating structure per se. Therefore, the method is easy to operate. In addition, the structure of the accelerating tube in the above system is simple, without adding a particular regulation apparatus.
Abstract translation: 本公开公开了一种用于控制驻波加速器及其系统的方法。 该方法包括：通过电子枪产生电子束; 将电子束注入加速管中; 并且控制微波功率源以将不同频率的微波产生并输入到加速管中，使得加速管以预定频率在不同谐振模之间切换以产生具有相应能量的电子束。 根据上述方案，只需要在调节能量的过程中改变微波功率源的输出频率，而不会对加速结构本身造成任何变化。 因此，该方法易于操作。 此外，上述系统中的加速管的结构简单，而不添加特定的调节装置。
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8.发明申请公开(公告)号：US20140185775A1
公开(公告)日：2014-07-03
申请号：US14137262
申请日：2013-12-20
Applicant: Nuctech Company Limited , Tsinghua University
Inventor： Chuanxiang TANG , Zhe ZHANG , Qingxiu JIN , Jiaru SHI , Huaibi CHEN , Wenhui HUANG , Shuxin ZHENG , Yaohong LIU
Abstract: A standing wave electron linear accelerating apparatus and a method thereof are disclosed. The apparatus comprises an electron gun configured to generate electron beams; a pulse power source configured to provide a primary pulse power signal; a power divider coupled downstream from the pulse power source and configured to divide the primary pulse power signal outputted from the pulse power source into a first pulse power signal and a second pulse power signal; a first accelerating tube configured to accelerating the electron beams with the first pulse power signal; a second accelerating tube configured to accelerate the electron beams with the second pulse power signal; a phase shifter configured to continuously adjust a phase difference between the first pulse power signal and the second pulse power signal so as to generate accelerated electron beams with continuously adjustable energy at output of the second accelerating tube.
Abstract translation: 公开了一种驻波电子线性加速装置及其方法。 该装置包括配置成产生电子束的电子枪; 脉冲电源，被配置为提供初级脉冲功率信号; 耦合到所述脉冲电源的下游并被配置为将从所述脉冲电源输出的所述主脉冲功率信号划分为第一脉冲功率信号和第二脉冲功率信号的功率分配器; 第一加速管，被配置为用第一脉冲功率信号加速电子束; 第二加速管，被配置为用所述第二脉冲功率信号加速所述电子束; 移相器，被配置为连续地调节第一脉冲功率信号和第二脉冲功率信号之间的相位差，以便在第二加速管的输出处产生具有连续可调能量的加速电子束。
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