公开(公告)号：US20140185744A1

公开(公告)日：2014-07-03

申请号：US14140105

申请日：2013-12-24

Applicant: Tsinghua University ,  Nuctech Company Limited

Inventor： Jinyu ZHANG ,  Hu TANG ,  Zhanjun DUAN ,  Li ZHANG ,  Ziran ZHAO

IPC: G01V5/00

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：US20140185743A1

公开(公告)日：2014-07-03

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

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。 多个检测器模块中的至少一些被布置成大致L形或基本上为＆P; 在与扫描通道相交的平面中观察时的形状。 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系统的尺寸小，精度高，特别适用于行李的安全检查。