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    • 16. 发明申请
    • Container inspection system with CT tomographic scanning function
    • 集装箱检查系统具有CT断层扫描功能
    • US20060126772A1
    • 2006-06-15
    • US11287332
    • 2005-11-23
    • Haifeng HuQitian MiaoLiming WangKejun KangZhiqiang ChenYucheng WuShangmin SunYanjun HanHua PengNan JiangZhizhong Liang
    • Haifeng HuQitian MiaoLiming WangKejun KangZhiqiang ChenYucheng WuShangmin SunYanjun HanHua PengNan JiangZhizhong Liang
    • G21G1/00
    • G01N23/046G01N2223/419G01N2223/643G01V5/005
    • A container inspection system with CT tomographic scanning function, which is related to a large container inspection system for Customs, is disclosed, comprising: a radiation source; an annular rotatable rack with the radiation source provided at the outside thereof and rotated with it; an annular rack body for supporting the annular rotatable rack in a vertical plane; a driving device for rotating the annular rotatable rack; a detector array provided in the inner side of said annular rotatable rack and opposed to a side where the radiation source is provided; a transmission device passing through the annular rotatable rack and annular rack body, and transmitting a container truck to be detected in linear movement; a remote control device for controlling the operations of the radiation source, the driving device and the transmission device, and receiving/displaying the image signal obtained by the detector array. Not only can general inspection of the objects to be detected be undertaken, but also does repeated tomographic inspection of suspicious locations within the inspected objects, thus achieves effective accuracy improvement of the contrabands detection.
    • 公开了一种具有CT断层扫描功能的集装箱检查系统,涉及海关的大型集装箱检验系统,包括:辐射源; 环形可旋转的齿条,其辐射源设置在其外部并随其旋转; 环形齿条体,用于在垂直平面内支撑环形旋转齿条; 用于旋转所述环形旋转齿条的驱动装置; 检测器阵列,设置在所述环形旋转齿条的内侧,并与设置有所述辐射源的一侧相对; 穿过环形可旋转齿条和环形齿条体的传动装置,并以直线运动传递待检测的集装箱卡车; 用于控制辐射源,驱动装置和传输装置的操作以及接收/显示由检测器阵列获得的图像信号的遥控装置。 不仅可以对要检测的物体进行全面检查,而且对受检物体内的可疑位置进行重复层析检查,从而实现对违禁品检测的有效准确性提高。
    • 19. 发明申请
    • Method and apparatus for liquid safety-detection by backscatter with a radiation source
    • 用辐射源通过后向散射进行液体安全检测的方法和装置
    • US20060133566A1
    • 2006-06-22
    • US11285395
    • 2005-11-23
    • Yulan LiHaifeng HuYinong LiuZhiqiang ChenKejun KangLi ZhangWanlong WuYuanjing LiYi WangWenjun HeMingrui Qi
    • Yulan LiHaifeng HuYinong LiuZhiqiang ChenKejun KangLi ZhangWanlong WuYuanjing LiYi WangWenjun HeMingrui Qi
    • G01N23/04
    • G01N23/20066G01N23/203G01N2223/637G01V5/0025
    • A method and an apparatus for liquid safety-detection by backscatter with a radiation source relate to a radiation detecting technology field. The invention comprises using a radiation source, a collimator, a detector, a data collector and a computer data processor, and has the main steps of: 1) a liquid article to be detected being placed onto a rotatable platform; 2) the ray emitted from the radiation source causing Compton scattering at the surface of the liquid after passing through the package layer of the liquid article; 3) the scattering photons being received by the detector after passing the collimator; 4) the detector transmitting the received data to the data collector; and 5) the data collector transmitting the amplified and shaped data to the computer data processor, which processes the data to obtain the liquid density of the detected article, then compares the result with the densities of dangerous articles in a current database, and gives warning if finding that the density of the detected article is consistent with that of a dangerous article. Comparing to the prior art, the invention has a convenient use, a rapid and accurate detection, a strong anti-interference, a high use safety and reliability, and an easy protection.
    • 用于通过具有辐射源的后向散射进行液体安全检测的方法和装置涉及辐射检测技术领域。 本发明包括使用辐射源,准直仪,检测器,数据采集器和计算机数据处理器,并且具有以下主要步骤:1)待检测的液体物品被放置在可旋转平台上; 2)从辐射源发出的射线,在液体物品的包装层穿过液体表面后会引起康普顿散射; 3)散射光子在通过准直仪之后被检测器接收; 4)检测器将接收的数据发送到数据采集器; 5)数据收集器将放大和成形数据发送到计算机数据处理器,处理数据以获得检测到的物品的液体密度,然后将结果与当前数据库中的危险物品的密度进行比较,并给出警告 如果发现检测到的物品的密度与危险物品的密度一致。 与现有技术相比,本发明方便使用,检测快速准确,抗干扰性强,使用安全可靠,易于保护。
    • 20. 发明授权
    • X-CT scan system
    • X-CT扫描系统
    • US07760852B2
    • 2010-07-20
    • US12159640
    • 2006-12-14
    • Zhiqiang ChenKejun KangLi ZhangHaifeng HuYuxiang XingLiang LiYongshun XiaoZiran ZhaoYuanjing LiYinong Liu
    • Zhiqiang ChenKejun KangLi ZhangHaifeng HuYuxiang XingLiang LiYongshun XiaoZiran ZhaoYuanjing LiYinong Liu
    • A61B6/00
    • A61B6/032A61B6/587
    • An X-CT scan system includes a base, an object rotary support, an X-ray generation device and a data acquisition system, wherein one side of the detector is leveled to or beyond the prolong line of the connecting line between the X-ray source of the X-ray generation device and the center of the object rotary support, the length of the beyond portion is less than the radius of the imaging field. The advantage of the invention is in that the invention can reconstruct the entire image of the object by means of X-ray projection data which only covers half of the area of the object. Compared with the traditional CT scan system, half of the detector size can be saved at most. The X-CT scan system is simplified and the projection data amount for scan and computation amount for image reconstruction are also reduced with the reconstructed image quality guaranteed.
    • X-CT扫描系统包括基座,对象旋转支架,X射线产生装置和数据采集系统,其中检测器的一侧被平整到或超过X射线之间的连接线的延长线 X射线产生装置的源和对象旋转支架的中心,超出部分的长度小于成像场的半径。 本发明的优点在于,本发明可以通过仅覆盖对象区域的一半的X射线投影数据来重建物体的整个图像。 与传统CT扫描系统相比,检测器尺寸的一半最多可以节省。 X-CT扫描系统被简化,并且用于图像重建的扫描和计算量的投影数据量也被减少,重建图像质量得到保证。