公开(公告)号：US20220020553A1

公开(公告)日：2022-01-20

申请号：US17371311

申请日：2021-07-09

申请人： Tsinghua University

发明人： Jiaru SHI ,  Hao ZHA ,  Jiayang LIU ,  Huaibi CHEN ,  Chuanxiang TANG

IPC分类号： H01J25/587 ,  H01J23/05 ,  H01J23/213

摘要： A magnetron is provided and includes a tube body with a plurality of communicated first cavities therein, a plurality of anodes in the first cavities including a cylinder and a plurality of vanes, outer ends of the vanes are connected with an inner circumferential surface of the cylinder; a first resonant cavity and a second resonant cavity are formed between the adjacent vanes, the cylinder is provided with a plurality of coupling slots arranged at intervals and running through the cylinder to communicate the first resonant cavity with the first cavity; a plurality of cathode arranged in and coaxially with the cylinder; the cathodes and inner ends of the vanes are spaced apart; at least part of the cathodes are located inside vanes, and an output slot is defined on the tube body for communicating the first cavity with an outside.

公开(公告)号：US20150187535A1

公开(公告)日：2015-07-02

申请号：US14582060

申请日：2014-12-23

申请人： NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

发明人： Huaping TANG ,  Chuanxiang TANG ,  Huaibi CHEN

IPC分类号： H01J35/14 ,  G21K1/02 ,  H01J35/16 ,  G01N23/04

CPC分类号： H01J35/14 ,  G01N23/043 ,  G21K1/02 ,  H01J35/16 ,  H01J2235/166

摘要： The present invention provides an X-ray generating apparatus and an X-ray fluoroscopy imaging system comprising the same. The X-ray generating apparatus comprises: an electron accelerator including an electron acceleration unit, an electron emission unit, and a target; a shielding and collimating device, including a shielding structure and a collimator arranged in the shielding structure, wherein the target is surrounded by the shielding structure, the collimator is arranged in a direction passing through the target point and forming an angle from 30 degrees to 150 degrees with the electron beam shooting the target.

摘要翻译： 本发明提供一种X射线产生装置和包括该X射线产生装置的X射线荧光透视成像系统。 X射线产生装置包括：包括电子加速单元，电子发射单元和靶的电子加速器; 屏蔽和准直装置，包括布置在屏蔽结构中的屏蔽结构和准直器，其中目标被屏蔽结构包围，准直器布置在穿过目标点的方向上，并形成从30度到150度的角度 电子束拍摄目标。

公开(公告)号：US20150185166A1

公开(公告)日：2015-07-02

申请号：US14582069

申请日：2014-12-23

申请人： NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

发明人： Huaping TANG ,  Zhiqiang CHEN ,  Chuanxiang TANG ,  Huaibi CHEN ,  Yuanjing LI ,  Ziran ZHAO ,  Yaohong LIU ,  Shangmin SUN ,  Xinshui YAN ,  Zhanfeng QIN

IPC分类号： G01N23/04 ,  G21K1/02 ,  G01T7/08 ,  G01V5/00

CPC分类号： G01N23/043 ,  G01T7/08 ,  G01V5/0033 ,  G01V5/0041 ,  G01V5/005 ,  G21K1/025

摘要： The X-ray fluoroscopic imaging system of the present invention comprises: an inspection passage; an electron accelerator; a shielding collimator apparatus comprising a shielding structure, and a first collimator for extracting a low energy planar sector X-ray beam and a second collimator for extracting a high energy planar sector X-ray beam which are disposed within the shielding structure; a low energy detector array for receiving the X-ray beam from the first collimator; and a high energy detector array for receiving the X-ray beam from the second collimator. The first collimator, the low energy detector array and the target point bombarded by the electron beam are located in a first plane; and the second collimator, the high energy detector array and the target point bombarded by the electron beam are located in a second plane.

摘要翻译： 本发明的X射线透视成像系统包括：检查通道; 电子加速器; 包括屏蔽结构的屏蔽准直器装置和用于提取低能平面扇形X射线束的第一准直器和用于提取设置在屏蔽结构内的高能平面扇形X射线束的第二准直器; 低能量检测器阵列，用于接收来自第一准直仪的X射线束; 以及用于从第二准直器接收X射线束的高能量检测器阵列。 第一准直器，低能量检测器阵列和由电子束轰击的目标点位于第一平面中; 并且第二准直器，高能量检测器阵列和由电子束轰击的目标点位于第二平面中。

公开(公告)号：US20190170894A1

公开(公告)日：2019-06-06

申请号：US16253221

申请日：2019-01-22

申请人： NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

发明人： Kejun KANG ,  Yaohong LIU ,  Ziran ZHAO ,  Wei JIA ,  Jianping GU ,  Chuanxiang TANG ,  Huaibi CHEN ,  Jianjun GAO ,  Wei YIN ,  Xiying LIU

IPC分类号： G01V5/00 ,  G01T1/29 ,  G01N23/04

摘要： This invention provides a scan method, scan system and radiation scan controller, and relates to the field of radiation. The scanning method includes obtaining detection data of an object to be inspected under radiation scanning using a detector, adjusting an accelerator output beam dose rate and/or an output electron beam energy level of a radiation emission device according to the detection data. With this method, working conditions of the accelerator of the radiation emission device may be adjusted according to the detection data detected by the detector, so that for a region having a larger mass thickness, a higher output beam dose rate or a higher electron beam output energy level is adopted to guarantee satisfied imaging technical indexes, for a region having a smaller mass thickness, a lower output beam dose rate or a lower electron beam output energy level is adopted to reduce the environmental dose level while guaranteeing satisfied imaging technical indexes.

公开(公告)号：US20150185356A1

公开(公告)日：2015-07-02

申请号：US14582076

申请日：2014-12-23

申请人： NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

发明人： Huaping TANG ,  Zhiqiang CHEN ,  Chuanxiang TANG ,  Huaibi CHEN ,  Yuanjing LI ,  Ziran ZHAO ,  Yaohong LIU ,  Shangmin SUN ,  Xinshui YAN ,  Zhanfeng QIN

IPC分类号： G01V5/00

CPC分类号： G01V5/0016 ,  G01V5/0033 ,  G01V5/005 ,  G01V5/0066

摘要： The present invention may perform fluoroscopic imaging simultaneously on the subjects in at least two channels using only one electron accelerator, at least two sets of X-ray beams and at least two sets of detector systems, through the design of the electron accelerator, the shielding and collimating device, the at least two detector arrays and various mechanical composite structures. The X-ray fluoroscopic imaging system according to the present invention may be designed in specific forms of a stationary type, an assembled type, a track mobile type or vehicular mobile type, etc., and has advantages such as simple structure, low cost, strong function, good image quality and the like.

摘要翻译： 本发明可以通过电子加速器的设计，通过电子加速器的设计，仅使用一个电子加速器，至少两组X射线束和至少两组检测器系统，在至少两个通道中的受试者上进行透视成像 和准直装置，至少两个检测器阵列和各种机械复合结构。 根据本发明的X射线透视成像系统可以以固定型，组装式，轨道移动型或车辆型移动式等的特定形式设计，具有结构简单，成本低廉等优点， 功能强大，图像质量好等优点。

公开(公告)号：US20150078532A1

公开(公告)日：2015-03-19

申请号：US14490526

申请日：2014-09-18

申请人： TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

发明人： Chuanxiang TANG ,  Huaping TANG ,  Huaibi CHEN ,  Wenhui HUANG ,  Huayi ZHANG ,  Shuxin ZHENG

IPC分类号： H01J35/14 ,  H01J35/06 ,  H05G1/32 ,  H01J35/12

CPC分类号： H01J35/14 ,  H01J35/06 ,  H01J35/12 ,  H01J35/16 ,  H01J2235/068 ,  H01J2235/086 ,  H01J2235/087 ,  H05G1/32

摘要： The present application provides an external thermionic cathode distributed x-ray apparatus, comprises: a vacuum box which is sealed at its periphery, and the interior thereof is high vacuum; a plurality of electron transmitting units arranged in a linear array and installed on the side wall of the vacuum box, each electron transmitting unit is independent to each other; an anode installed in the center inside the vacuum box, and in the direction of length, the anode is parallel to the orientation of the electron transmitting unit, and in the direction of width, the anode has a predetermined angle with respect to the plane of the electron transmitting unit; and a power supply and control system having a high voltage power supply, a focusing power supply; a transmitting control means and a control system; the electron transmitting unit having: a heating filament; a cathode connected to the heating filament; an insulated support enclosing the heating filament and the cathode; a focusing electrode, arranged at the upper end of the insulated support by way of locating above the cathode; and a connecting fastener arranged above the focusing electrode and connected to the wall of the vacuum box; wherein, the filament lead is connected to the transmitting control means through the insulated support.

摘要翻译： 本申请提供了一种外部热离子阴极分布式x射线装置，包括：真空箱，其外围密封，其内部为高真空; 多个电子发射单元布置成线性阵列并安装在真空箱的侧壁上，每个电子发射单元彼此独立; 安装在真空箱内部的中心的阳极，并且在长度方向上，阳极平行于电子发射单元的取向，并且在宽度方向上，阳极相对于 电子发射单元; 以及具有高压电源，聚焦电源的电源和控制系统; 发送控制装置和控制系统; 电子发射单元具有：加热丝; 连接到加热丝的阴极; 封闭加热丝和阴极的绝缘支架; 聚焦电极，通过定位在阴极上方布置在绝缘支撑件的上端; 以及布置在聚焦电极上方并连接到真空箱壁上的连接紧固件; 其中，灯丝引线通过绝缘支撑件连接到发射控制装置。

公开(公告)号：US20150185164A1

公开(公告)日：2015-07-02

申请号：US14577701

申请日：2014-12-19

申请人： TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

发明人： Zhiqiang CHEN ,  Yigang YANG ,  Xuewu WANG ,  Qinjian ZHANG ,  Huaibi CHEN ,  Yuanjing LI

IPC分类号： G01N23/00 ,  G21G4/02

CPC分类号： G01N23/005 ,  G01V5/0091 ,  G21G4/02

摘要： Embodiments of the present invention disclose a nuclide identification method, a nuclide identification system, and a photoneutron emitter. The photoneutron emitter comprises: a pulsed electron accelerator configured for emitting electrons; and a photoneutron converting target configured to receive the electrons emitted by the pulsed electron accelerator and convert the electrons into photoneutrons. The photoneutron converting target has a volume of about 100 to about 8000 cm3, of about 100 to about 2500 cm3, or of about 785 cm3. These embodiments of the present invention can improve an accuracy of identification of a nuclide, and provide a practical photoneutron emitter, method and system for identifying a nuclide.Especially, these embodiments of the present invention can improve an accuracy of identification of a fissile nuclide such as 233U, 235U, and 239Pu, and provide a practical photoneutron emitter, method and system for identifying a fissile nuclide such as 233U, 235U, and 239Pu.

摘要翻译： 本发明的实施例公开了核素识别方法，核素鉴定系统和光子中子发射体。 光子中子发射体包括：配置用于发射电子的脉冲电子加速器; 以及被配置为接收由脉冲电子加速器发射的电子并将电子转换成光子酮的光子中子转换目标。 光子中子转化靶具有约100至约8000cm 3，约100至约2500cm 3或约785cm 3的体积。 本发明的这些实施方案可以提高核素的鉴定精度，并提供实用的光子中子发射体，用于识别核素的方法和系统。 特别地，本发明的这些实施例可以提高诸如233U，235U和239Pu之类的裂变核素的鉴定准确度，并提供一种实用的光子中子发射体，用于识别易裂变核素的方法和系统，例如233U，235U和239Pu 。

公开(公告)号：US20150084550A1

公开(公告)日：2015-03-26

申请号：US14487891

申请日：2014-09-16

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： Chuanxiang TANG ,  Jiaru SHI ,  Qingxiu JIN ,  Huaibi CHEN ,  Wenhui HUANG

IPC分类号： H05H7/22 ,  H05H7/02 ,  H05H9/00

CPC分类号： H05H7/22 ,  H05H7/02 ,  H05H7/18 ,  H05H9/00 ,  H05H9/048 ,  H05H2007/027 ,  H05H2007/227

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20150078511A1

公开(公告)日：2015-03-19

申请号：US14490509

申请日：2014-09-18

申请人： TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

发明人： Chuanxiang TANG ,  Huaping TANG ,  Huaibi CHEN ,  Wenhui HUANG ,  Huayi ZHANG ,  Shuxin ZHENG ,  Yaohong LIU ,  Jinsheng LIU

IPC分类号： H01J35/04 ,  G01N23/04 ,  H01J35/14 ,  H01J35/16 ,  H01J35/10 ,  H01J35/06

CPC分类号： H01J35/045 ,  G01N23/046 ,  H01J35/06 ,  H01J35/065 ,  H01J35/10 ,  H01J35/14 ,  H01J35/16 ,  H01J2235/087

摘要： A x-ray apparatus of the present application comprises: a vacuum box which is sealed at its periphery, and the interior thereof is high vacuum; a plurality of electron transmitting units arranged in a linear array and installed on the wall at one end within the vacuum box, each electron transmitting unit is independent to each other; the electron transmitting unit having: a heating filament; a cathode connected to the heating filament; a grid arranged above the cathode opposing the cathode; anode made of metal and installed at the other end of the vacuum box, and in the direction of length, the anode is parallel to the plane of the grid of the electron transmitting unit, and in the direction of width, the anode has a predetermined angle with respect to the plane of the grid of the electron transmitting unit.

摘要翻译： 本申请的X射线装置包括：真空箱，其外周密封，其内部为高真空; 多个电子传输单元，其布置成直线阵列，并且一端安装在真空箱内的壁上，每个电子传输单元彼此独立; 电子发射单元具有：加热丝; 连接到加热丝的阴极; 布置在与阴极相对的阴极上方的栅极; 阳极由金属制成并安装在真空箱的另一端，并且在长度方向上，阳极平行于电子发射单元的栅格平面，并且在宽度方向上，阳极具有预定的 相对于电子发送单元的格栅的平面的角度。

公开(公告)号：US20150078510A1

公开(公告)日：2015-03-19

申请号：US14490535

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 ,  Shuxin ZHENG ,  Huayi ZHANG ,  Yaohong LIU

IPC分类号： H01J35/06 ,  H05G1/10 ,  H01J35/12

CPC分类号： H01J35/06 ,  H01J35/12 ,  H01J35/16 ,  H01J35/24 ,  H01J2235/068 ,  H01J2235/087 ,  H05G1/10 ,  H05G1/70

摘要： The present application provides a curved surface array distributed x-ray apparatus, characterized in that, it comprises: a vacuum box which is sealed at its periphery, and the interior thereof is high vacuum; a plurality of electron transmitting units arranged on the wall of the vacuum box in multiple rows along the direction of the axis of the curved surface in the curved surface facing the axis; an anode made of metal and arranged in the axis in the vacuum box which comprises an anode pipe and an anode target surface; 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, a grid-controlled apparatus connected to each of the plurality of electron transmitting units, a control system for controlling each power supply.

摘要翻译： 本申请提供了一种弯曲表面阵列分布式x射线装置，其特征在于，它包括：真空箱，其外围密封，其内部为高真空; 多个电子发送单元沿着与面向轴线的弯曲表面中的曲面的轴线的方向成多列布置在真空箱的壁上; 由金属构成的阳极，其布置在包括阳极管和阳极靶表面的真空箱中的轴线上; 具有连接到阳极的高压电源的电源和控制系统，连接到多个电子发射单元中的每一个的灯丝电源，连接到多个电子发射单元中的每一个的电网控制装置， 用于控制每个电源的控制系统。