Electrode structure for drift tube in ion mobility spectrometer
    61.
    发明申请
    Electrode structure for drift tube in ion mobility spectrometer 有权
    离子迁移谱仪中漂移管的电极结构

    公开(公告)号:US20090309013A1

    公开(公告)日:2009-12-17

    申请号:US12455029

    申请日:2009-05-27

    IPC分类号: H01J49/00

    CPC分类号: G01N27/622

    摘要: Disclosed is an electrode structure for a drift tube in IMS comprising a ring electrode, for each of two surfaces of the ring electrode, at least a part adjacent to the inner radius is formed into a cone, and the angles formed between the cones and the axis of the ring electrode are different from each other. The electrode structure of the present invention can alleviate, even eliminate, the accumulation of space charges in the drift tube. Such structure is particularly suitable when the electric field in the drift tube is low in strength or a great number of ions pass through. Meanwhile, the structure allows a significant decrease in the size of the outer radius of the electrode, while the inner radius remains constant. In this way, it is possible to effectively reduce the outline size of the drift tube and thus make the IMS compact.

    摘要翻译: 公开了一种用于IMS中的漂移管的电极结构,包括环形电极,对于环形电极的两个表面中的每一个,至少与内半径相邻的部分形成为锥体,并且在锥体和 环电极的轴线彼此不同。 本发明的电极结构可以减轻甚至消除漂移管中空间电荷的累积。 当漂移管中的电场强度低或大量离子通过时,这种结构特别合适。 同时,结构允许电极的外半径的大小显着减小,而内半径保持恒定。 以这种方式,可以有效地减小漂移管的轮廓尺寸,从而使得IMS紧凑。

    Ion gate for dual ion mobility spectrometer and method thereof
    62.
    发明授权
    Ion gate for dual ion mobility spectrometer and method thereof 有权
    双离子迁移谱仪的离子门及其方法

    公开(公告)号:US08013297B2

    公开(公告)日:2011-09-06

    申请号:US12579719

    申请日:2009-10-15

    IPC分类号: G01N27/64 H01J49/06

    摘要: Disclosed is an ion gate for a dual IMS and method. The ion gate includes an ion source, a first gate electrode placed on one side of the ion source, a second gate electrode placed on the other side of the ion source, a third gate electrode placed on the side of the first gate electrode away from the ion source, a fourth gate electrode placed on the side of the second gate electrode away from the ion source, wherein during the ion storage, the potential at the position on the tube axis of the ion gate corresponding to the first gate electrode is different from the potentials at the positions on the tube axis corresponding to the ion source and the third gate electrode, and the potential at the position on the tube axis corresponding to the second gate electrode is different from the potentials at the positions on the tube axis corresponding to the ion source and the fourth gate electrode. According to the present invention, after sample gas enters the ion gates, charge exchange with reaction ions occurs between the first gate electrode and the second electrode, and positive and negative ions are continuously stored into the storage regions for the positive and negative ions. This leads to an improvement of utility rate of ions. Then, the ions are educed in a step-wise manner from the storage regions for the positive and negative ions by a simple control of a combination of the electrodes.

    摘要翻译: 公开了一种用于双重IMS和方法的离子门。 离子浇口包括离子源,位于离子源一侧的第一栅电极,位于离子源另一侧的第二栅电极,位于第一栅电极侧的第三栅电极, 离子源,第四栅极放置在远离离子源的第二栅电极侧,其中在离子存储期间,对应于第一栅电极的离子门的管轴上的位置的电位不同 从对应于离子源和第三栅电极的管轴上的位置的电位和对应于第二栅电极的管轴上的位置的电位与管轴对应的位置的电位不同 到离子源和第四栅电极。 根据本发明,在样品气体进入离子浇口之后,在第一栅电极和第二电极之间产生与反应离子的电荷交换,正离子和负离子被连续地存储在正离子和负离子的存储区中。 这导致了离子的利用率的提高。 然后,通过简单地控制电极的组合,从正离子和负离子的存储区域逐步地排出离子。

    Ion mobility spectrometer and method thereof
    63.
    发明授权
    Ion mobility spectrometer and method thereof 有权
    离子迁移谱仪及其方法

    公开(公告)号:US07807964B2

    公开(公告)日:2010-10-05

    申请号:US12342517

    申请日:2008-12-23

    IPC分类号: H01J49/00 B01D59/44

    CPC分类号: G01N27/622 H01J49/067

    摘要: An ion mobility spectrometer and method thereof are disclosed. The ion mobility spectrometer comprises an electrode and an ion source arranged adjacent to the electrode, wherein the ion mobility spectrometer further comprises: a single or a group of focusing guide electrodes arranged on the side of the ion source far away from the electrode and shaped as a funnel to output ions from the ion source; and a storage section arranged on the ion-outputting side of the focusing guide electrode for storing ions generated from the ion source. With the scheme of separating the ion source and the storage region, the present invention can facilitate exchange of different ion sources, so that a source can be replaced with another different source without any change in the subsequent configuration. The storage section can be made very thin in the direction of ion movement, its diameter can be very large, and the internal electric field is almost zero. Thus, it is possible to collect a huge amount of ions with a very small cluster thickness and a directional velocity of almost zero, leading to reduction in spread of ion mobility spectrum and increase in resolution.

    摘要翻译: 公开了一种离子迁移谱仪及其方法。 离子迁移谱仪包括邻近电极布置的电极和离子源,其中离子迁移谱仪还包括:单个或一组聚焦引导电极,其布置在远离电极的离子源侧,并形成为 从离子源输出离子的漏斗; 以及存储部,其配置在聚焦引导电极的离子输出侧,用于存储从离子源产生的离子。 通过分离离子源和存储区域的方案,本发明可以促进不同离子源的交换,使得源可以用另一不同的源代替,而后续配置没有任何变化。 存储部分可以在离子运动的方向上变得非常薄,其直径可以非常大,并且内部电场几乎为零。 因此,可以收集具有非常小的簇厚度和几乎为零的定向速度的大量离子,导致离子迁移率谱的扩散减小并且分辨率增加。

    ION MOBILITY SPECTROMETER AND METHOD THEREOF
    64.
    发明申请
    ION MOBILITY SPECTROMETER AND METHOD THEREOF 有权
    离子移动光谱仪及其方法

    公开(公告)号:US20090166530A1

    公开(公告)日:2009-07-02

    申请号:US12342517

    申请日:2008-12-23

    IPC分类号: B01D59/44 H01J49/00

    CPC分类号: G01N27/622 H01J49/067

    摘要: An ion mobility spectrometer and method thereof are disclosed. The ion mobility spectrometer comprises an electrode and an ion source arranged adjacent to the electrode, wherein the ion mobility spectrometer further comprises: a single or a group of focusing guide electrodes arranged on the side of the ion source far away from the electrode and shaped as a funnel to output ions from the ion source; and a storage section arranged on the ion-outputting side of the focusing guide electrode for storing ions generated from the ion source. With the scheme of separating the ion source and the storage region, the present invention can facilitate exchange of different ion sources, so that a source can be replaced with another different source without any change in the subsequent configuration. The storage section can be made very thin in the direction of ion movement, its diameter can be very large, and the internal electric field is almost zero. Thus, it is possible to collect a huge amount of ions with a very small cluster thickness and a directional velocity of almost zero, leading to reduction in spread of ion mobility spectrum and increase in resolution.

    摘要翻译: 公开了一种离子迁移谱仪及其方法。 离子迁移谱仪包括邻近电极布置的电极和离子源,其中离子迁移谱仪还包括:单个或一组聚焦引导电极,其布置在远离电极的离子源侧,并形成为 从离子源输出离子的漏斗; 以及存储部,其配置在聚焦引导电极的离子输出侧,用于存储从离子源产生的离子。 通过分离离子源和存储区域的方案,本发明可以促进不同离子源的交换,使得源可以用另一不同的源代替,而后续配置没有任何变化。 存储部分可以在离子运动的方向上变得非常薄,其直径可以非常大,并且内部电场几乎为零。 因此,可以收集具有非常小的簇厚度和几乎为零的定向速度的大量离子,导致离子迁移率谱的扩散减小并且分辨率增加。

    Scanning device and method for back-scatter imaging with a radiation beam
    67.
    发明授权
    Scanning device and method for back-scatter imaging with a radiation beam 有权
    用辐射束进行背散射成像的扫描装置和方法

    公开(公告)号:US08983033B2

    公开(公告)日:2015-03-17

    申请号:US13142668

    申请日:2011-04-28

    IPC分类号: G01N23/203

    CPC分类号: G01N23/203

    摘要: The present invention discloses a scanning device of back-scatter imaging with a radiation beam, comprising: a radiation source; a fixed shield plate and a rotatable shield body disposed between the radiation source and a object to be scanned respectively, wherein the fixed shield plate is stationary with respect to the radiation source and the rotatable shield body is rotatable with respect to the fixed shield plate. The fixed shield plate is provided with a ray passing-through region thereon, which allows for a radiation beam from the radiation source to pass through the fixed shield plate, a ray incidence region and a ray emergence region are arranged on the rotatable shield body respectively, during the rotatable scanning of the rotatable shield body, the ray passing-through region of the fixed shield plate continuously intersects with the ray incidence region and the ray emergence region of the rotatable shield body to generate collimated holes for scanning. The ray passing-through region of the fixed shield plate is a rectilinear slit, the rotatable shield body is a cylinder, and the ray incidence and emergence regions are configured to be a series of small discrete holes disposed along a spiral line respectively. In addition, the present invention discloses a scanning method for back-scatter imaging with a radiation beam.

    摘要翻译: 本发明公开了一种具有辐射束的背散射成像的扫描装置,包括:辐射源; 固定屏蔽板和设置在辐射源和待扫描物体之间的可旋转屏蔽体,其中固定屏蔽板相对于辐射源是静止的,并且可旋转屏蔽体相对于固定屏蔽板可旋转。 固定屏蔽板在其上设有射线通过区域,其允许来自辐射源的辐射束穿过固定屏蔽板,射线入射区域和射线出射区域分别布置在可旋转屏蔽体上 在可旋转的屏蔽体的可旋转扫描期间,固定屏蔽板的光线通过区域与可旋转屏蔽体的射线入射区域和射线出射区域连续相交,以产生用于扫描的准直孔。 固定屏蔽板的光线通过区域是直线狭缝,可旋转的屏蔽体是圆柱体,射线入射区域和出射区域分别被配置成沿着螺旋线设置的一系列小的分立孔。 此外,本发明公开了一种利用辐射束进行背散射成像的扫描方法。

    Millimeter-wave inspection apparatus
    68.
    发明授权
    Millimeter-wave inspection apparatus 有权
    毫米波检测仪

    公开(公告)号:US08513615B2

    公开(公告)日:2013-08-20

    申请号:US13126067

    申请日:2010-12-29

    IPC分类号: G01J5/02

    摘要: The present invention discloses a millimeter-wave inspection apparatus. The millimeter-wave inspection apparatus comprises: optics devices, configured to receive millimeter-wave energy radiated from an object to be inspected and focus the received millimeter-wave energy; a radiometer receiving device configured to receive the focused millimeter-wave energy and transform the millimeter-wave energy into electrical signal; and an imaging device configured to generate a temperature image of the object to be inspected based on the electrical signal. Compared with the prior art, the millimeter-wave inspection apparatus of the present invention has a simple and compact structure; it would not be harmful to the human health by employing the passive millimeter-wave human body security inspection technology. With the above configuration, the contraband items to be concealed within the human clothing can be efficiently and effectively detected.

    摘要翻译: 本发明公开了一种毫米波检测装置。 毫米波检查装置包括:光学装置,被配置为接收从待检查物体辐射的毫米波能量并聚焦接收的毫米波能量; 辐射计接收装置,被配置为接收聚焦的毫米波能量并将毫米波能量转换成电信号; 以及成像装置,被配置为基于所述电信号生成所述待检查对象的温度图像。 与现有技术相比,本发明的毫米波检测装置具有简单紧凑的结构; 采用被动毫米波人体安全检测技术对人体健康无害。 通过上述结构,能够有效且高效地检测隐藏在人体衣物中的违禁物品。

    Method and apparatus for substance identification
    69.
    发明授权
    Method and apparatus for substance identification 有权
    物质识别方法和装置

    公开(公告)号:US08290230B2

    公开(公告)日:2012-10-16

    申请号:US12270908

    申请日:2008-11-14

    IPC分类号: G06K9/00

    摘要: A method for substance identification and an apparatus thereof are disclosed. The method comprises comprising steps of: transmitting an object under inspection using high-energy rays and low-energy rays, so as to obtain a high-energy transmission image and a low-energy transmission image for the object, wherein a value of each pixel in the high-energy image indicates a high-energy transparency of the high-energy rays with respect to corresponding parts of the object, and a value of each pixel in the low-energy image indicates a low-energy transparency of the low-energy rays with respect to corresponding parts of the object; calculating a value of a first function for the high-energy transparency and a value of a second function for the high-energy transparency and the low-energy transparency, for each pixel; and classifying locations determined by the value of the first function and the value of the second function using a pre-created classification curve, so as to identify the type of the substance of a part of the object corresponding to each pixel. With the present invention, it is possible to not only obtain a transmission image of the object, but also obtain material information in the object.

    摘要翻译: 公开了一种物质识别方法及其装置。 该方法包括以下步骤:使用高能射线和低能射线发射被检查物体,以获得该物体的高能透射图像和低能透射图像,其中每个像素的值 在高能量图像中表示高能量射线相对于物体的相应部分的高能量透明度,并且低能量图像中的每个像素的值表示低能量透射度的低能量 相对于物体的相应部分的射线; 对于每个像素,计算用于高能量透明度的第一函数的值和用于高能量透明度和低能量透明度的第二函数的值; 以及使用预先创建的分类曲线对由第一函数的值和第二函数的值确定的位置进行分类,以便识别与每个像素对应的对象的一部分的实体的类型。 利用本发明,不仅可以获得对象的发送图像,而且可以获得对象中的素材信息。

    SCANNING DEVICE AND METHOD FOR BACK-SCATTER IMAGING WITH A RADIATION BEAM
    70.
    发明申请
    SCANNING DEVICE AND METHOD FOR BACK-SCATTER IMAGING WITH A RADIATION BEAM 有权
    扫描装置和用于具有辐射束的后扫描成像的方法

    公开(公告)号:US20120170716A1

    公开(公告)日:2012-07-05

    申请号:US13142668

    申请日:2011-04-28

    IPC分类号: G01N23/203

    CPC分类号: G01N23/203

    摘要: The present invention discloses a scanning device of back-scatter imaging with a radiation beam, comprising: a radiation source; a fixed shield plate and a rotatable shield body disposed between the radiation source and a object to be scanned respectively, wherein the fixed shield plate is stationary with respect to the radiation source and the rotatable shield body is rotatable with respect to the fixed shield plate. The fixed shield plate is provided with a ray passing-through region thereon, which allows for a radiation beam from the radiation source to pass through the fixed shield plate, a ray incidence region and a ray emergence region are arranged on the rotatable shield body respectively, during the rotatable scanning of the rotatable shield body, the ray passing-through region of the fixed shield plate continuously intersects with the ray incidence region and the ray emergence region of the rotatable shield body to generate collimated holes for scanning. The ray passing-through region of the fixed shield plate is a rectilinear slit, the rotatable shield body is a cylinder, and the ray incidence and emergence regions are configured to be a series of small discrete holes disposed along a spiral line respectively. In addition, the present invention discloses a scanning method for back-scatter imaging with a radiation beam.

    摘要翻译: 本发明公开了一种具有辐射束的背散射成像的扫描装置,包括:辐射源; 固定屏蔽板和设置在辐射源和待扫描物体之间的可旋转屏蔽体,其中固定屏蔽板相对于辐射源是静止的,并且可旋转屏蔽体相对于固定屏蔽板可旋转。 固定屏蔽板在其上设有射线通过区域,其允许来自辐射源的辐射束穿过固定屏蔽板,射线入射区域和射线出射区域分别布置在可旋转屏蔽体上 在可旋转的屏蔽体的可旋转扫描期间,固定屏蔽板的光线通过区域与可旋转屏蔽体的射线入射区域和射线出射区域连续相交,以产生用于扫描的准直孔。 固定屏蔽板的光线通过区域是直线狭缝,可旋转的屏蔽体是圆柱体,射线入射区域和出射区域分别被配置成沿着螺旋线设置的一系列小的分立孔。 此外,本发明公开了一种利用辐射束进行背散射成像的扫描方法。