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    Ultrasensitive Ion Detector Using Carbon Nanotubes or Graphene
    32.
    发明申请
    Ultrasensitive Ion Detector Using Carbon Nanotubes or Graphene 审中-公开
    使用碳纳米管或石墨烯的超灵敏离子检测器

    公开(公告)号：US20150276677A1

    公开(公告)日：2015-10-01

    申请号：US14441218

    申请日：2013-11-12

    Applicant: NORTEASTERN UNIVERSITY

    Inventor： Bo Li ,  Ji Hao ,  Hyun Young Jung ,  Yung Joon Jung ,  Swastik Kar

    IPC: G01N27/70

    CPC classification number: G01N27/70 ,  G01N27/62 ,  H01J41/02 ,  H01J47/02 ,  H01J49/025

    Abstract: An ion detection device has a strip of carbon-based nanomaterial (CNM) film and a chamber enclosing the CNM film. A low bias voltage is applied at the ends of the CNM film strip, and ions present in the chamber are detected by a change in the magnitude of current flowing through the CNM film under the bias. Also provided are methods for fabricating the device, methods for measuring pressure of a gas, and methods for monitoring or quantifying an ionizing radiation using the device.

    Abstract translation: 离子检测装置具有碳带纳米材料（CNM）带和包围CNM膜的室。 在CNM膜条的端部施加低偏压，并且通过在偏压下流过CNM膜的电流的大小的变化来检测存在于室中的离子。 还提供了用于制造装置的方法，用于测量气体压力的方法，以及使用该装置监测或定量电离辐射的方法。

    IONIZATION GAUGE WITH OPERATIONAL PARAMETERS AND GEOMETRY DESIGNED FOR HIGH PRESSURE OPERATION
    33.
    发明申请
    IONIZATION GAUGE WITH OPERATIONAL PARAMETERS AND GEOMETRY DESIGNED FOR HIGH PRESSURE OPERATION 有权
    具有运行参数和几何设计用于高压运行的离子化测量

    公开(公告)号：US20140152320A1

    公开(公告)日：2014-06-05

    申请号：US14174386

    申请日：2014-02-06

    Applicant: Brooks Automation, Inc.

    Inventor： Gerardo A. Brucker

    IPC: G01L21/30

    CPC classification number: G01L21/30 ,  G01L21/32 ,  G01L21/34 ,  H01J41/02

    Abstract: An ionization gauge to measure pressure and to reduce sputtering yields includes at least one electron source that generates electrons. The ionization gauge also includes a collector electrode that collects ions formed by the collisions between the electrons and gas molecules. The ionization gauge also includes an anode. An anode bias voltage relative to a bias voltage of a collector electrode is configured to switch at a predetermined pressure to decrease a yield of sputtering collisions.

    Abstract translation: 用于测量压力和减少溅射产生的电离计包括产生电子的至少一个电子源。 电离计还包括收集由电子和气体分子之间的碰撞形成的离子的集电极。 电离计还包括阳极。 相对于集电极的偏置电压的阳极偏置电压被配置为在预定压力下切换以降低溅射碰撞的产量。

    MOLECULAR SHIELD FOR AN IONIZATON VACUUM GAUGE
    34.
    发明申请
    MOLECULAR SHIELD FOR AN IONIZATON VACUUM GAUGE 失效
    一种离子真空计的分子筛

    公开(公告)号：US20100090703A1

    公开(公告)日：2010-04-15

    申请号：US12250785

    申请日：2008-10-14

    Applicant: BENJAMIN AARON BOARDWINE ,  DERRICK LAMONT JOURNIETTE

    Inventor： BENJAMIN AARON BOARDWINE ,  DERRICK LAMONT JOURNIETTE

    IPC: G01N27/62

    CPC classification number: G01N27/62 ,  H01J41/02

    Abstract: A system for measuring gas density in a vacuum includes a gauge, a housing for containing the gauge, and a magnet secured to an exterior surface of the housing. The magnet is a flexible magnetic strips, and positioned around the exterior surface of the housing. The gauge includes grid insulator posts extending longitudinally along a tubular section of the housing, and the magnet is secured to the exterior surface of the housing adjacent to the grid insulator posts, and oriented transversely to the grid insulator posts. The magnet is a flexible magnetic strip, and a clamp secures the magnet to the exterior surface of the housing.

    Abstract translation: 用于测量真空中气体密度的系统包括测量计，用于容纳测量计的壳体和固定到壳体的外表面的磁体。 磁体是柔性磁条，并且围绕壳体的外表面定位。 该测量仪包括沿壳体的管状部分纵向延伸的栅格绝缘体柱，并且磁体固定到壳体的与栅格绝缘体柱相邻的外表面，并横向于栅格绝缘体柱。 磁体是柔性磁条，夹具将磁体固定在外壳的外表面上。

    Ionization vacuum gauge
    35.
    发明申请
    Ionization vacuum gauge 有权
    电离真空计

    公开(公告)号：US20010011890A1

    公开(公告)日：2001-08-09

    申请号：US09770656

    申请日：2001-01-29

    Applicant: ANELVA CORPORATION

    Inventor： Yousuke Kawasaki

    IPC: H01J029/46 ,  G01L021/30

    CPC classification number: G01L21/32 ,  H01J41/02

    Abstract: It is an object of the present invention to provide an ionization vacuum gauge which can stably perform measurements of pressure in the intermediate vacuum to high vacuum regions, that is performed by an ionization-type first measurement element, as well as in the measurement region intrinsic to a second measurement element. This ionization vacuum gauge comprises a measurement element vessel, and first and second measurement parts provided within this measurement element vessel. The first measurement part comprises component electrodes including a filament, grid and ion collector, and is of an ionization-type construction for measurement of the pressure of vacuum states. The second measurement part is of a construction having different functions from those of the first measurement part, and is disposed in a space that is near the extension of the grid axis, and is away from the principal space for flying of thermal electrons emitted from the filament. A shield plate is provided between the second measurement part and the component electrodes, to spatially separate the second measurement part and the component electrodes. The second measurement part is fixed to an element fastening plate made from a material with excellent thermal conductivity.

    Abstract translation: 本发明的目的是提供一种电离真空计，其可以稳定地执行中间真空中的压力到高真空区域的测量，这是通过电离型第一测量元件以及测量区域内在的 到第二测量元件。 该电离真空计包括测量元件容器，以及设置在该测量元件容器内的第一和第二测量部件。 第一测量部件包括包括灯丝，栅格和离子收集器的元件电极，并且是用于测量真空状态的压力的电离型结构。 第二测量部件具有与第一测量部件不同的功能的结构，并且设置在靠近网格轴的延伸部的空间中，并且远离主空间，用于使从 灯丝。 在第二测量部件和部件电极之间设置屏蔽板，以在空间上分离第二测量部件和部件电极。 第二测量部件被固定到由具有优异导热性的材料制成的元件紧固板。

    Photo-ionization detector for volatile gas measurement and a method for self-cleaning the same
    36.
    发明授权
    Photo-ionization detector for volatile gas measurement and a method for self-cleaning the same 有权
    用于挥发性气体测量的光电离检测器及其自清洁方法

    公开(公告)号：US06225633B1

    公开(公告)日：2001-05-01

    申请号：US09177669

    申请日：1998-10-22

    Applicant: Hong T. Sun ,  Peter C. Hsi

    Inventor： Hong T. Sun ,  Peter C. Hsi

    IPC: G01N2764

    CPC classification number: G01N33/0029 ,  G01N27/66 ,  G01N33/0047 ,  H01J41/02

    Abstract: A photo-ionization detector (PID) includes an ultraviolet (UV) lamp that transmits UV light into an ionization chamber to ionize volatile gases. An ion detector in the ionization chamber includes interdigital electrodes that collect resulting ions using an electrical field perpendicular to the UV light propagation. A pump in the PID circulates gases through the ionization chamber in a direction perpendicular to the electrical field and to the UV light propagation. The PID additionally provides a UV monitor having interdigital electrodes that release electrons when struck by the UV light. The size of a monitor current in the UV monitor indicates the intensity of the UV light. The UV monitor is in a UV monitor chamber that protects the UV monitor from exposure to the ionized gases and improves the accuracy of UV intensity measurements. The interdigital electrodes of the ion detector and the UV monitor can be manufactured by forming an electrode layer on a substrate and selectively patterning the electrode layer to produce interdigital electrodes. If the substrate is not transparent to UV light, the substrate can be removed or patterned to match the interdigital electrodes. To remove contamination in the PID, the pump is turned off while operation of the UV lamp continues. The UV light creates ozone that accumulates in the ionization chamber and removes contamination from the ionization chamber.

    Abstract translation: 光电离检测器（PID）包括紫外（UV）灯，其将UV光透射​​到电离室中以电离挥发性气体。 电离室中的离子检测器包括使用垂直于UV光传播的电场收集所得离子的叉指电极。 PID中的泵在垂直于电场和UV光传播的方向上循环通过电离室的气体。 PID还提供了具有叉指电极的UV监视器，其在被紫外线照射时释放电子。 UV监视器中的监视器电流的大小表示UV光的强度。 紫外线监测器在紫外线监测室内，可以防止紫外线监测器暴露于电离气体，并提高紫外线强度测量的准确性。 离子检测器和UV监视器的叉指电极可以通过在基板上形成电极层并选择性地图案化电极层以产生叉指电极来制造。 如果衬底对UV光不透明，则可以去除或图案化衬底以匹配叉指电极。 为了清除PID中的污染，在UV灯持续运行的同时关闭泵。 UV光产生积聚在电离室中的臭氧并去除电离室中的污染物。

    Extended detection zone in an ionization detector
    37.
    发明授权
    Extended detection zone in an ionization detector 失效
    电离检测器中扩展检测区

    公开(公告)号：US6107805A

    公开(公告)日：2000-08-22

    申请号：US70003

    申请日：1998-04-30

    Applicant: Mahmoud F. Abdel-Rahman

    Inventor： Mahmoud F. Abdel-Rahman

    IPC: G01N27/68 ,  G01N27/62 ,  G01N30/64 ,  G01N30/70 ,  G01N37/00 ,  G01T1/18

    CPC classification number: G01N30/62 ,  G01N27/70 ,  H01J41/02

    Abstract: An ionization detector for detection of an analyte includes a source chamber having a source of ionizing particles and receiving a fluid stream of detector gas; an ionization chamber connected to the source chamber at an ionization chamber entrance therebetween so as to allow metastables and photons to be generated in the source chamber and to be transferred in the fluid stream to the ionization chamber; a signal electrode assembly located in the ionization chamber; and a signal measuring circuit for measuring ionized analyte molecules. The signal electrode assembly includes a spaced array of electrodes including a collector electrode, a first signal electrode, and a second signal electrode. The first signal electrode is situated immediately downstream from the ionization chamber entrance and substantially upstream of the collector electrode, so as to extend the detection zone to the vicinity of the ionization chamber entrance.

    Abstract translation: 用于检测分析物的电离检测器包括具有电离粒子源并接收检测器气体的流体流的源室; 离子化室，其在离子室入口处连接到源室，以便在源室中产生亚稳态和光子，并在流体流中转移到电离室; 位于电离室中的信号电极组件; 以及用于测量电离的分析物分子的信号测量电路。 信号电极组件包括间隔开的电极阵列，其包括集电极，第一信号电极和第二信号电极。 第一信号电极位于电离室入口的正下游并且基本上在集电极的上游，以将检测区域延伸到电离室入口附近。

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