公开(公告)号：US11026319B2

公开(公告)日：2021-06-01

申请号：US16727639

申请日：2019-12-26

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED ,  NuRay Technology Co., Ltd

Inventor： Yuanjing Li ,  Yaohong Liu ,  Huaping Tang ,  Jinsheng Liu ,  Xiying Liu ,  Zhanfeng Qin ,  Wei Jia ,  Jinsong Pan

IPC: H05G1/32 ,  H02M3/28 ,  H02M7/10 ,  H05G1/20 ,  H05G2/00

Abstract: Embodiments of the present disclosure disclose a multi-output high-voltage power supply including a channel selection circuit (103) including a plurality of switches; and a high-voltage power supply module (101) connected to the channel selection circuit (103), wherein the high-voltage power supply module (101) includes a fine adjusting power supply component (110) and a plurality of coarse adjusting power supply components (120-1 to 120-N) connected in series, wherein one high-voltage output terminal of the high-voltage power supply module (101) is connected to a common terminal of the channel selection circuit (103), and the other high-voltage output terminal of the high-voltage power supply module (101) is grounded through a current sampling resistor.

公开(公告)号：US10014148B2

公开(公告)日：2018-07-03

申请号：US14904061

申请日：2015-08-19

Applicant: Nuctech Company Limited

Inventor： Huaping Tang ,  Zhiqiang Chen ,  Yuanjing Li ,  Yonggang Wang ,  Zhanfeng Qin

IPC: A61B6/03 ,  A61B6/04 ,  H01J37/26 ,  H01J35/06 ,  H01J35/14

CPC classification number: H01J35/065 ,  H01J3/021 ,  H01J35/14 ,  H01J2203/022 ,  H01J2203/0224 ,  H01J2203/0236 ,  H01J2235/062 ,  H01J2235/068 ,  H05G1/52

Abstract: The present disclosure is directed to an electron source and an X-ray source using the same. The electron source of the present invention comprises: at least two electron emission zones, each of which comprises a plurality of micro electron emission units, wherein the micro electron emission unit comprises: a base layer, an insulating layer on the base layer, a grid layer on the insulating layer, an opening in the grid layer, and an electron emitter that is fixed at the base layer and corresponds to a position of the opening, wherein the micro electron emission units in the same electron emission zone are electrically connected and simultaneously emit electrons or do not emit electrons at the same time, and wherein different electron emission zones are electrically partitioned.

公开(公告)号：US20170162359A1

公开(公告)日：2017-06-08

申请号：US14904061

申请日：2015-08-19

Applicant: NUCTECH COMPANY LIMITED

Inventor： Huaping Tang ,  Zhiqiang Chen ,  Yuanjing Li ,  Yonggang Wang ,  Zhanfeng Qin

IPC: H01J35/06 ,  H01J35/14

CPC classification number: H01J35/065 ,  H01J3/021 ,  H01J35/14 ,  H01J2203/022 ,  H01J2203/0224 ,  H01J2203/0236 ,  H01J2235/062 ,  H01J2235/068 ,  H05G1/52

Abstract: The present disclosure is directed to an electron source and an X-ray source using the same. The electron source of the present invention comprises: at least two electron emission zones, each of which comprises a plurality of micro electron emission units, wherein the micro electron emission unit comprises: a base layer, an insulating layer on the base layer, a grid layer on the insulating layer, an opening in the grid layer, and an electron emitter that is fixed at the base layer and corresponds to a position of the opening, wherein the micro electron emission units in the same electron emission zone are electrically connected and simultaneously emit electrons or do not emit electrons at the same time, and wherein different electron emission zones are electrically partitioned.

公开(公告)号：US20150085989A1

公开(公告)日：2015-03-26

申请号：US14494178

申请日：2014-09-23

Applicant: NUCTECH COMPANY LIMITED ,  Tsinghua University

Inventor： Kejun Kang ,  Chuanxiang Tang ,  Huaping Tang ,  Huaibi Chen ,  Wenhui Huang

IPC: H01J35/14 ,  H01J35/10

CPC classification number: H01J35/14 ,  A61N5/1077 ,  H01J35/06 ,  H01J35/106 ,  H01J2235/068 ,  H01J2235/086 ,  H01J2235/1262 ,  H05H7/06

Abstract: An apparatus and a method are for generating a flattening x-ray radiation field. The apparatus includes: plurality of electron accelerators for generating high-energy electron beam current; and a common target unit including a vacuum target chamber, a target and plurality of input connectors. The plurality of input connectors are connected to one side of the vacuum target chamber and the target is installed at the other side of the vacuum target chamber opposing the plurality of input connectors, the axes of which intersect in pairs at one point in an predetermined included angle. The plurality of electron accelerators are connected to the plurality of input connectors.

Abstract translation: 一种用于产生平坦的x射线辐射场的装置和方法。 该装置包括：多个用于产生高能电子束电流的电子加速器; 以及包括真空靶室，靶和多个输入连接器的公共目标单元。 多个输入连接器连接到真空靶室的一侧，并且目标件安装在真空靶室的与多个输入连接器相对的另一侧，多个输入连接器的轴线在预定的包括的一个点处成对地相交 角度。 多个电子加速器连接到多个输入连接器。

公开(公告)号：US20140185754A1

公开(公告)日：2014-07-03

申请号：US14134845

申请日：2013-12-19

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Huaping Tang ,  Yuanjing Li ,  Ziran Zhao ,  Yaohong Liu ,  Zhanfeng Qin ,  Jinyu Zhang ,  Hu Tang

IPC: G01V5/00

CPC classification number: G01V5/0016 ,  G01N23/046 ,  G01V5/005

Abstract: This invention relates to an X-ray goods inspection apparatus, and in particular to a goods inspection apparatus using distributed X-ray source.

Abstract translation: 本发明涉及一种X射线物品检查装置，特别涉及一种使用分布式X射线源的货物检验装置。