公开(公告)号：US09551808B2

公开(公告)日：2017-01-24

申请号：US14140105

申请日：2013-12-24

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Jinyu Zhang ,  Hu Tang ,  Zhanjun Duan ,  Li Zhang ,  Ziran Zhao

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

CPC classification number: G01V5/005 ,  G01N23/046 ,  G01N2223/419 ,  G01T1/2985

Abstract: A CT apparatus without a gantry. The CT apparatus includes a scanning passage; a stationary X-ray source arranged around the scanning passage and including a plurality of ray emission focal spots; and a plurality of stationary detector modules arranged around the scanning passage and disposed opposite the X-ray source. At least some of the plurality of detector modules may be arranged substantially in an L shape, a semicircular shape, a U shape, an arc shape, a parabolic shape, or a curve shape when viewed in a plane intersecting the scanning passage. The invention ensures that the stationary gantry type CT system has a small size, and a high data identification accuracy.

Abstract translation: 没有龙门架的CT设备。 CT装置包括扫描通道; 固定的X射线源，设置在扫描通道周围并且包括多个射线发射焦点; 以及多个固定检测器模块，其布置在扫描通道周围并且设置成与X射线源相对。 当在与扫描通道相交的平面中观察时，多个检测器模块中的至少一些可以基本上布置成L形，半圆形，U形，弧形，抛物线形或曲线形状。 本发明确保了固定式龙门式CT系统体积小，数据识别精度高。

公开(公告)号：US20140314200A1

公开(公告)日：2014-10-23

申请号：US14355240

申请日：2013-07-15

Applicant: NUCTECH COMPANY LIMITED

Inventor： Zhiqiang Chen ,  Yuanjing Li ,  Li Zhang ,  Jinyu Zhang ,  Zhanjun Duan ,  Longsong Ran ,  Qingping Huang

IPC: G01V5/00

CPC classification number: G01V5/005 ,  A61B6/032 ,  A61B6/035 ,  G01N23/046 ,  G01V5/0016 ,  G01V5/0041

Abstract: The present invention discloses a CT security inspection system for baggage. The CT security inspection system comprises a scanning passage through which a baggage enters and exits the CT security inspection system for baggage, a X-ray source provided at one side of the scanning passage, and, a gantry provided at an opposite side of the scanning passage, and on which a plurality of detector units are mounted. In each of the detector units, a vertex point of at least one detector unit is positioned in a circular arc with its center at a center of the scanning passage, and the detector units are arranged successively. All the detector crystal receiving faces of the plurality of detector units are within a scope of radiating ray beams with its center at a target of the X-ray source. In each of the detector units, a connection line between a midpoint of at least one of the detector crystal receiving faces and the target of the X-ray source is normal to the corresponding detector crystal receiving face.

Abstract translation: 本发明公开了一种行李的CT安全检查系统。 CT安全检查系统包括扫描通道，行李通过该扫描通道进入和离开用于行李的CT安全检查系统，设置在扫描通道的一侧的X射线源，以及设置在扫描的相对侧的台架 通道，并且其上安装有多个检测器单元。 在每个检测器单元中，至少一个检测器单元的顶点定位在其中心在扫描通道的中心的圆弧中，并且检测器单元被连续布置。 多个检测器单元的所有检测器晶体接收面都在辐射射线束的范围内，其中心位于X射线源的目标。 在每个检测器单元中，检测器晶体接收面中的至少一个的中点与X射线源的目标之间的连接线垂直于相应的检测器晶体接收面。

公开(公告)号：US09864091B2

公开(公告)日：2018-01-09

申请号：US14355240

申请日：2013-07-15

Applicant: NUCTECH COMPANY LIMITED

Inventor： Zhiqiang Chen ,  Yuanjing Li ,  Li Zhang ,  Jinyu Zhang ,  Zhanjun Duan ,  Longsong Ran ,  Qingping Huang

IPC: G01V5/00 ,  G01N23/04 ,  G01N23/08 ,  G01N23/083 ,  G01N23/087 ,  A61B6/03

CPC classification number: G01V5/005 ,  A61B6/032 ,  A61B6/035 ,  G01N23/046 ,  G01V5/0016 ,  G01V5/0041

Abstract: The present invention discloses a CT security inspection system for baggage. The CT security inspection system comprises a scanning passage through which a baggage enters and exits the CT security inspection system for baggage, an X-ray source provided at one side of the scanning passage, and, a gantry provided at an opposite side of the scanning passage, and on which a plurality of detector units are mounted. In each of the detector units, a vertex point of at least one detector unit is positioned in a detector unit distribution circle with its center at a center of the scanning passage, and the detector units are arranged successively. All the detector crystal receiving faces of the plurality of detector units are within a scope of radiating ray beams with their center at the target of the X-ray source. In each of the detector units, a connection line between a midpoint of at least one of the detector crystal receiving faces and the target of the X-ray source is normal to the corresponding detector crystal receiving face.

公开(公告)号：US09453937B2

公开(公告)日：2016-09-27

申请号：US14140058

申请日：2013-12-24

Applicant: Nuctech Company Limited

Inventor： Jinyu Zhang ,  Bin Sang ,  Zhanjun Duan ,  Li Zhang ,  Ziran Zhao

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

CPC classification number: G01V5/005 ,  G01N23/046 ,  G01N2223/20 ,  G01N2223/419 ,  G01N2223/5015 ,  G01T1/2985

Abstract: A stationary CT apparatus and a method of controlling the same. The stationary CT apparatus includes: a scanning passage; a stationary carbon nanotube X-ray source arranged around the scanning passage and comprising a plurality of ray emission focal spots; and a plurality of stationary detector modules arranged around the scanning passage and disposed opposite the X-ray source. At least some of the plurality of detector modules are arranged in a substantially L shape or a substantially Π shape when viewed in a plane intersecting the scanning passage. Reconstruction of the CT apparatus without a rotary gantry is achieved and special substances in an object under inspection is identified by optimizing design of the carbon nanotube X-ray source and the detector device. The invention ensures that the stationary gantry type CT system has a small size and a high accuracy and is particularly suitable for safety inspection of baggage.

Abstract translation: 固定CT装置及其控制方法。 固定CT装置包括：扫描通道; 固定碳纳米管X射线源，其布置在所述扫描通道周围并且包括多个射线发射焦斑; 以及多个固定检测器模块，其布置在扫描通道周围并且设置成与X射线源相对。 当在与扫描通道相交的平面中观察时，多个检测器模块中的至少一些被布置成大致L形或大致Π形状。 通过优化碳纳米管X射线源和检测器设备的设计，可以实现没有旋转台架的CT设备的重建，并检测被检查物体中的特殊物质。 本发明确保了固定式龙门式CT系统尺寸小，精度高，特别适用于行李安全检查。