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1. 发明公开

EP2940710A1 CATHODE-CONTROLLED MULTI-CATHODE DISTRIBUTED X-RAY DEVICE AND CT APPARATUS HAVING SAME 有权
标题翻译：与多个分布式阴极和设备阴极控制的X射线设备CT
公开(公告)号：EP2940710A1
公开(公告)日：2015-11-04
申请号：EP13869443.5
申请日：2013-12-17
申请人： Nuctech Company Limited , Tsinghua University
发明人： TANG, Huaping , TANG, Chuanxiang , CHEN, Huaibi
IPC分类号： H01J35/06 , H01J35/08 , H01J35/14 , H05G1/30
CPC分类号： H05G1/70 , H01J35/06 , H01J2235/068 , H05G1/32
摘要： The cathode control multi-cathode distributed X-ray apparatus of this invention comprises: a vacuum box with the perimeter sealed and a high vacuum inside; a plurality of cathodes independent of each other and arranged and mounted at one end inside the vacuum box; a plurality of focal current limiters arranged corresponding one by one to the cathodes and mounted at a position near the cathodes inside the vacuum box, the focal current limiters being connected to one another; an anode made of metal and mounted at another end inside the vacuum box, being parallel to the focal current limiters in the length direction and forming a predetermined included angle with the focal current limiters in the width direction; a power supply and control system, having a cathode power supply, a focal current limiter power supply connected to the focal current limiters, an anode high voltage power supply, and a control apparatus; a pluggable high voltage connector, for connecting the anode to the cable of the anode high voltage power supply, and mounted at the side face of one end of the vacuum box near the anode; a plurality of pluggable cathode power supply connectors, for connecting the cathode to the cathode power supply, and mounted at the side face of one end of the vacuum box near the cathode.

2. 发明公开

EP2940460A1 CT DEVICE AND METHOD THEREOF 有权
标题翻译： CT-VORRICHTUNG UND VERFAHRENDAFÜR
公开(公告)号：EP2940460A1
公开(公告)日：2015-11-04
申请号：EP13869709.9
申请日：2013-10-31
申请人： Tsinghua University , Nuctech Company Limited
发明人： KANG, Kejun , TANG, Chuanxiang , ZHAO, Ziran , ZHANG, Zhe
IPC分类号： G01N23/04 , A61B6/03 , H05H9/00 , H05G2/00
CPC分类号： H05G1/32 , A61B6/032 , A61B6/4028 , A61B6/4275 , G01N23/046 , G01N2223/419 , H01J35/08 , H01J2235/087 , H05G1/10 , H05G2/00 , H05H7/18
摘要： CT devices and methods thereof are disclosed. The CT device comprises a circular electron gun array including a plurality of electron guns, each of the electron guns is configured to emit electron beams along the radial direction of the circular electron gun array in sequence according to a predetermine pulse sequence; an acceleration cavity disposed inside of a circle on which the circular electron gun array is positioned, including a plurality of nested concentric coaxial cavities that operate in π mode for accelerating electron beams emitted from the respective electron guns of the circular electron gun array; a circular transmission target disposed inside of a circle on which the acceleration cavity is positioned and being bombarded by the accelerated electron beams to generate X-rays; and a circular detector configured to receive the X-rays after they have passed through an object to be detected.
摘要翻译：公开了CT装置及其方法。该CT器件包括一个包括多个电子枪的圆形电子枪阵列，每个电子枪被配置为按照预定的脉冲序列沿着圆形电子枪阵列的径向方向发射电子束; 设置在圆形电子枪阵列所在的圆周内的加速腔，包括多个嵌套的同心同轴腔，它们以 - 模式工作，用于加速从圆形电子枪阵列的各个电子枪发射的电子束; 设置在加速腔位于其上并被加速电子束轰击以产生X射线的圆内的圆形透射目标; 以及圆形检测器，被配置为在它们通过待检测物体之后接收X射线。

3. 发明公开

EP2800267A1 DEVICE AND METHOD FOR USE IN ALTERNATING-VOLTAGE PULSE OUTPUT 有权
标题翻译： VORRICHTUNG VERFAHREN ZUR VERWENDUNG在EINEM WECHSELSPANNUNGS-IMPULSAUSGANG
公开(公告)号：EP2800267A1
公开(公告)日：2014-11-05
申请号：EP12862988.8
申请日：2012-12-28
申请人： Nuctech Company Limited , Tsinghua University
发明人： LIU, Yaohong , TANG, Chuanxiang , YAN, Xinshui , JIA, Wei , GAO, Jianjun , LIU, Jinsheng , YIN, Wei , LIU, Xiying , SHI, Hao
IPC分类号： H02M9/04 , H03K3/64
CPC分类号： H03K3/57 , H02M1/088 , H02M2003/077 , H03K3/64
摘要： The present invention provides a high voltage pulse modulating power source based on alternate group triggering, which comprises: a DC stabilized voltage source for supplying power to the high voltage pulse modulating power source; a plurality of solid-state switches; a plurality of triggers corresponding to said plurality of solid-state switches, wherein each trigger provides a trigger signal to its corresponding solid-state switch to turn on said corresponding solid-state switch, wherein said plurality of triggers are divided into at least two groups of triggers; a time sequence control module, which, at time t1, controls said plurality of triggers to generate trigger signals so as to turn on said plurality of solid-state switches simultaneously, and at time t2, controls one group of said at least two groups of triggers to generate trigger signals to turn on solid-state switches corresponding to this group of triggers, wherein time t1 and time t2 appear alternately.
摘要翻译：本发明提供一种基于交替组触发的高压脉冲调制电源，包括：用于向高电压脉冲调制电源供电的直流稳压电压源; 多个固态开关; 与所述多个固态开关相对应的多个触发器，其中每个触发器向其对应的固态开关提供触发信号以打开所述对应的固态开关，其中所述多个触发器被分成至少两个组的触发器时间控制模块，其在时间t1控制所述多个触发器以产生触发信号，以便同时接通所述多个固态开关，并且在时间t2，控制一组所述至少两组触发器产生触发信号以打开与该组触发相对应的固态开关，其中时间t1和时间t2交替出现。

4. 发明公开

EP4369869A1 RAY GENERATING DEVICE AND CONTROL METHOD THEREOF 审中-实审
公开(公告)号：EP4369869A1
公开(公告)日：2024-05-15
申请号：EP22836881.7
申请日：2022-07-05
申请人： Tsinghua University , Nuctech Company Limited
发明人： KANG, Kejun , LIU, Yaohong , CHEN, Huaibi , ZHANG, Liang , TANG, Chuanxiang , LI, Yuanjing
IPC分类号： H05G1/08 , H05G1/46 , G01V5/00
摘要： The present disclosure relates to a ray generating device and a control method thereof. The ray generating device includes: an electronic beam generating device (2), configured to generate a plurality of electronic beams; a microwave generating device (4), configured to generate a microwave; a microwave circulator (5), having a power input port and at least two power output ports, the power input port being connected to the microwave generating device (4);a plurality of accelerating tubes (3), connected to the electronic beam generating device (2) and respectively connected to the at least two power output ports, configured to respectively receive a plurality of electronic beams, and accelerate the plurality of electronic beams respectively through microwaves received from the at least two power output ports, so as to respectively generate a plurality of rays having at least two different energies; and a controller (1), configured to perform chronological control on microwave power of the microwave generating device (4), and chronological control on beam loadings of the electronic beams generated by the electronic beam generating device (2) and respectively corresponding to the plurality of accelerating tubes (3).

5. 发明公开

EP3768049A1 MULTI-RAY-SOURCE ACCELERATOR AND INSPECTION METHOD 审中-公开
公开(公告)号：EP3768049A1
公开(公告)日：2021-01-20
申请号：EP20186259.6
申请日：2020-07-16
申请人： Tsinghua University , Nuctech Company Limited
发明人： KANG, Kejun , CHEN, Huaibi , LIU, Yaohong , TANG, Chuanxiang , LI, Yuanjing , ZHA, Hao , ZHANG, Liang
IPC分类号： H05H7/18 , H05H9/04 , G01V5/00 , G01V5/08
摘要： Embodiments of the disclosure provide a multi-ray-source accelerator and an inspection method. The multi-ray-source accelerator includes: a plurality of acceleration tubes, each acceleration tube of the plurality of acceleration tubes including an acceleration tube body (12) that defines at least one cavity (11), the plurality of acceleration tubes being arranged in at least one row along a straight line or an arc and connected in series with each other; and a microwave unit (6) configured to provide a microwave field to the plurality of acceleration tubes. The plurality of acceleration tubes are arranged to allow the microwave unit to provide the microwave field from an acceleration tube at one end of the plurality of acceleration tubes so as to accelerate electron beams in cavities of all the acceleration tubes.

6. 发明公开

EP3686915A1 DISTRIBUTED X-RAY LIGHT SOURCE AND CONTROL METHOD THEREFOR, AND CT EQUIPMENT 审中-实审
公开(公告)号：EP3686915A1
公开(公告)日：2020-07-29
申请号：EP18855412.5
申请日：2018-05-29
申请人： Nuctech Company Limited , Tsinghua University
发明人： TAN, Chengjun , HUANG, Wenhui , TANG, Chuanxiang , JIN, Qingxiu , ZHANG, Dongsheng , LUO, Qun , LIU, Donghai , ZHANG, Luming , WU, Peidong
IPC分类号： H01J35/14 , H01J35/06 , H01J35/04 , A61B6/03 , A61B6/00
摘要： The present invention provides a distributed X-ray light source and a control method therefor, and CT equipment. The 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. According to the present disclosure, the effect of producing more X-ray radiation sources with less cathode assemblies can be realized, the stability of the system is improved, the use amount of the cathode assemblies is reduced, and the production costs of the equipment are reduced.

7. 发明公开

EP3686913A1 ANODE TARGET, RAY LIGHT SOURCE, COMPUTED TOMOGRAPHY DEVICE, AND IMAGING METHOD 审中-实审
公开(公告)号：EP3686913A1
公开(公告)日：2020-07-29
申请号：EP18856120.3
申请日：2018-09-13
申请人： Nuctech Company Limited , Tsinghua University
发明人： TAN, Chengjun , HUANG, Wenhui , TANG, Chuanxiang , JIN, Qingxiu , ZHANG, Dongsheng , LUO, Qun , LIU, Donghai , ZHANG, Luming , WU, Peidong
IPC分类号： H01J35/08
摘要： 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.

8. 发明公开

EP3686914A1 ANODE TARGET, RAY LIGHT SOURCE, COMPUTED TOMOGRAPHY SCANNING DEVICE, AND IMAGING METHOD 有权
公开(公告)号：EP3686914A1
公开(公告)日：2020-07-29
申请号：EP18856883.6
申请日：2018-06-01
申请人： Nuctech Company Limited , Tsinghua University
发明人： TAN, Chengjun , HUANG, Wenhui , TANG, Chuanxiang , JIN, Qingxiu , ZHANG, Dongsheng , LUO, Qun , LIU, Donghai , ZHANG, Luming , WU, Peidong
IPC分类号： H01J35/08
摘要： The present application relates to the technical filed of radiation treatment. Disclosed are an anode target, a ray light source, a computed tomography scanning device, and an imaging method. The 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 spots being of three-dimensional structures having bevels; a copper cooling body, used for bearing the target spots 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 evenly distributed on a straight line, imaging quality of a ray system is improved, and complexity of an imaging system is reduced.

9. 发明公开

EP2940457A1 CT DEVICE AND METHOD THEREOF 有权
标题翻译： CT装置及其方法
公开(公告)号：EP2940457A1
公开(公告)日：2015-11-04
申请号：EP13868705.8
申请日：2013-11-21
申请人： Tsinghua University , Nuctech Company Limited
发明人： KANG, Kejun , TANG, Chuanxiang , ZHAO, Ziran , ZHANG, Zhe
IPC分类号： G01N23/04 , H05G1/46 , A61B6/03
CPC分类号： H05G1/10 , A61B6/032 , A61B6/40 , A61B6/4064 , G01N23/046 , G01N2223/308 , G01N2223/419 , H01J35/06 , H01J35/08 , H01J2235/086
摘要： CT devices and methods thereof are disclosed. The CT device comprises a circular electron beam emission array including a plurality of electron beam emission units that are distributed uniformly along a circle, wherein each electron beam emission unit emits electron beams that are substantially parallel to an axis of the circular electron beam emission array in sequence under the control of a control signal; a circular reflection target which is disposed to be coaxial with the circular electron beam emission array, wherein the electron beams bombard the circular reflection target to generate X-rays that intersect the axis of the circular electron beam emission array; and a circular detector array which is disposed to be coaxial with the circular reflection target and configured to include a plurality of detection units which receive the X-rays after they have passed through an object to be detected.
摘要翻译：公开了CT装置及其方法。该CT装置包括：圆形电子束发射阵列，其包括沿着圆均匀分布的多个电子束发射单元，其中每个电子束发射单元发射基本上平行于圆形电子束发射阵列的轴的电子束; 序列在控制信号的控制下; 圆形反射靶，与圆形电子束发射阵列同轴设置，其中电子束轰击圆形反射靶，以产生与圆形电子束发射阵列的轴相交的X射线; 以及圆形的检测器阵列，该圆形的检测器阵列配置成与所述圆形的反射对象物同轴，并构成为具有多个检测单元，所述多个检测单元在通过被检测体后接收所述X射线。

10. 发明授权

EP2889652B1 X-ray fluoroscopic imaging system 有权
公开(公告)号：EP2889652B1
公开(公告)日：2020-01-22
申请号：EP14200195.7
申请日：2014-12-23
申请人： Nuctech Company Limited , Tsinghua University
发明人： TANG, Huaping , CHEN, Zhiqiang , TANG, Chuanxiang , CHEN, Huaibi , LI, Yuanjing , ZHAO, Ziran , LIU, Yaohong , SUN, Shangmin , YAN, Xinshui , QIN, Zhanfeng
IPC分类号： G01V5/00

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