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28 条记录 (耗时 0.012 秒)

    Radon detection system
    2.
    发明授权
    Radon detection system 失效
    氡检测系统

    公开(公告)号：US4920263A

    公开(公告)日：1990-04-24

    申请号：US148729

    申请日：1988-01-26

    申请人： Keith S. Fimian ,  John E. McGreevy ,  Brian P. Fimian ,  Richard W. Tucker

    发明人： Keith S. Fimian ,  John E. McGreevy ,  Brian P. Fimian ,  Richard W. Tucker

    IPC分类号： G01T1/167 ,  G01T1/00 ,  G01T1/178 ,  G01T5/10

    CPC分类号： G01T1/003 ,  G01T1/178 ,  Y10S250/02

    摘要： A radon detection system is provided with the capability of monitoring certain environmental parameters together with certain other conditions indicative of possible tampering. The environmental data allows the calculation of an accurate projection of average long-term radon levels in the structure under test on the basis of a relatively short measurement period, while the tamper data indicates whether an attempt has been made to tamper with the detection unit or the measurement conditions during the test period. When an indication of possible tampering occurs, the system enters an accelerated data collection mode during which data is gathered that can later be used to determine whether tampering has actually occurred. The detection system may be provided with first and second detectors for separately monitoring airborne levels of radon gas and radon decay products. The radon gas detector may include a scintillation cell, and means may be provided to purge and then bypass the scintillation cell when high radon gas concentrations are detected. Methods for measuring and reporting radon gas and decay product concentrations are also disclosed.

    摘要翻译： 氡检测系统具有监测某些环境参数以及指示可能篡改的某些其他条件的能力。 环境数据允许在相对较短的测量周期的基础上计算正在测试的结构中的平均长期氡水平的准确投影，而篡改数据指示是否尝试篡改检测单元或 测试期间的测量条件。 当发生可能的篡改的指示时，系统进入加速数据收集模式，在此期间收集数据，以后可以用于确定是否实际发生了篡改。 检测系统可以设置有第一和第二检测器，用于分别监测氡气和氡衰变产物的空气含量。 氡气检测器可以包括闪烁单元，并且可以提供装置以在检测到高氡气浓度时清洗并旁路闪烁单元。 还公开了测量和报告氡气和衰变产物浓度的方法。

    Anion exchange chromatographic separation of polyfunctional compounds
    3.
    发明授权
    Anion exchange chromatographic separation of polyfunctional compounds 失效
    多官能化合物的阴离子交换色谱分离

    公开(公告)号：US4290892A

    公开(公告)日：1981-09-22

    申请号：US16847

    申请日：1979-03-02

    申请人： Seth R. Abbott

    发明人： Seth R. Abbott

    IPC分类号： B01J41/20 ,  G01N30/96 ,  G01T1/00 ,  G01T1/203 ,  B01D15/08

    CPC分类号： G01N30/482 ,  B01J41/20 ,  G01N30/96 ,  G01T1/003 ,  G01T1/203 ,  B01J2220/54

    摘要： A weak anion exchange composition useful in polyfunctional compound chromatographic separations comprises an inert porous particle having a tetra-substituted silane material fixedly attached by covalent bonding to the surface thereof. A process for synthesizing the weak anion exchange composition is disclosed together with methods for separation of polyfunctional compounds and their isomers using a column packed with such weak anion exchange composition.

    摘要翻译： 用于多官能化合物色谱分离的弱阴离子交换组合物包括具有四取代的硅烷材料的惰性多孔颗粒，其通过共价键与其表面固定连接。 公开了一种用于合成弱阴离子交换组合物的方法以及使用填充有这种弱阴离子交换组合物的柱分离多官能化合物及其异构体的方法。

    Flow cell for radiation detector
    5.
    发明授权
    Flow cell for radiation detector 有权
    用于辐射探测器的流通池

    公开(公告)号：US09383456B2

    公开(公告)日：2016-07-05

    申请号：US14348098

    申请日：2012-10-01

    申请人： GE HEALTHCARE LIMITED

    发明人： Alan Peter Clarke ,  Thanushan Rajanayagam ,  Roger Paul Pettitt ,  Robert F. Chisholm

    IPC分类号： G01T1/20 ,  G01N21/00 ,  G01N30/62 ,  G01T7/02 ,  G01T1/00 ,  G01N30/00

    CPC分类号： G01T1/2006 ,  G01N30/62 ,  G01N2030/77 ,  G01T1/003 ,  G01T7/02

    摘要： The present invention provides a flow cell that can be used to improve the linear detection range of a radio-detector. The flow cell of the present invention is simple and cost-effective to set up and provides technical advantages over methods known in the prior art, as set out in more detail hereunder. The present invention also provides a method to determine the RCP of a radioactive composition making use of said flow cell, and a HPLC system comprising said flow cell.

    摘要翻译： 本发明提供了可用于改善无线电检测器的线性检测范围的流动池。 与现有技术中已知的方法相比，本发明的流动池相对于现有技术中已知的方法而言，设置简单且成本有效，并且提供了技术优点，如下文更详细地阐述。 本发明还提供了确定使用所述流动池的放射性组合物的RCP的方法，以及包括所述流动池的HPLC系统。

    Ordering Structure of Scintillator and Fabrication Method
    6.
    发明申请
    Ordering Structure of Scintillator and Fabrication Method 有权
    闪烁体的订购结构和制作方法

    公开(公告)号：US20140158543A1

    公开(公告)日：2014-06-12

    申请号：US13711615

    申请日：2012-12-12

    申请人： CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

    发明人： Chien-Chon Chen ,  Deng-Horng Tsai ,  Ker-Jer Huang ,  Soon-Lin Chen ,  Tsan-Nan Yang

    IPC分类号： C25D1/02 ,  B44C1/22

    CPC分类号： G01T1/003 ,  B44C1/227 ,  C23C18/1616 ,  C23C18/1879 ,  C23C18/36 ,  C23G1/125 ,  C25D1/02 ,  C25D11/045 ,  C25D11/08 ,  C25D11/12 ,  C25D11/16 ,  C25D11/24 ,  C25D11/26 ,  C25F3/20 ,  G01T1/2006 ,  G01T1/202

    摘要： An ordering structure scintillator of scintillator and fabrication method is disclosed. The ordering structure scintillator of scintillator comprises: a tubular template, which consists of a plurality of thin film oxidized metal tubes; a plurality of scintillators, filled in the thin film oxidized metal tubes; and a package layer, formed on the surface of the tubular template for protecting the tubular template. In addition, through the fabrication method, the ordering structure scintillator of scintillator can be made by anodic treatment and die casting technology with low cost and rapid production; moreover, the film oxidized metal tubes of the tubular template can be further manufactured to nano tubes by adjusting electrolyte composition, electrolysis voltage, and processing time of anodic treatment, and the aperture size, the thickness and the vessel density of the nano tube can be controlled and ranged from 10 nm to 500 nm, 0.1 μm to 1000 μm, and 108 to 1012 tube/cm2, respectively.

    摘要翻译： 公开了闪烁体的排序结构闪烁体和制造方法。 闪烁体的有序结构闪烁体包括：管状模板，由多个薄膜氧化金属管组成; 多个闪烁体，填充在薄膜氧化金属管中; 以及形成在管状模板的表面上用于保护管状模板的封装层。 另外，通过制造方法，可以通过阳极处理和压铸技术以低成本，快速的生产制造闪烁体的有序结构闪烁体; 此外，可以通过调节电解质组成，电解电压和阳极处理的处理时间，将管状模板的膜氧化金属管进一步制造成纳米管，并且可以将纳米管的孔径，厚度和容器密度 控制范围为10nm至500nm，0.1μm至1000μm，108至1012管/ cm2。

    Multilayer scintillation chamber for the simultaneous measurement of radioactive samples
    7.
    发明授权
    Multilayer scintillation chamber for the simultaneous measurement of radioactive samples 失效
    用于同时测量放射性样品的多层闪烁室

    公开(公告)号：US4495420A

    公开(公告)日：1985-01-22

    申请号：US372526

    申请日：1982-04-28

    申请人： Martin Chudy ,  Rudolf Janik ,  Pavol Povinec

    发明人： Martin Chudy ,  Rudolf Janik ,  Pavol Povinec

    IPC分类号： G01T1/00 ,  G01T1/20

    CPC分类号： G01T1/003

    摘要： Process of and apparatus for the simultaneous determination of the concentration of a plurality of radioactive gases. Radioactive gas containing several beta radionuclides is led into a separate chamber where their concentration is determined simultaneously and selectively by using a plastic multi-layer scintillator. The energy of the emitted beta radiation further identifies single radionuclides, and it determines them selectively and quantitatively by carrying out an amplitude discrimination of the registered impulses. The process can be carried out continuously or discontinuously. The multi-layer scintillation chamber is composed of a light-tight casing in which plates of plastic scintillators having suitable dimensions and location are placed in spaced relationship, such plates being connected on each end of the casing with a photomultiplier through a light-guide.

    摘要翻译： 用于同时测定多种放射性气体的浓度的方法和装置。 含有多个β放射性核素的放射性气体被引入分开的室中，其中通过使用塑料多层闪烁体同时且选择性地测定其浓度。 发射的β辐射的能量进一步识别单个放射性核素，并且通过执行注册的脉冲的幅度鉴别来选择性地和定量地确定它们。 该过程可以连续或不连续地进行。 多层闪烁室由不透光外壳构成，其中具有适当尺寸和位置的塑料闪烁体的板以间隔的关系放置，这些板通过光导通过光电倍增管连接在壳体的每一端。

    Radioactivity detection in high-pressure liquid chromatography
    8.
    发明授权
    Radioactivity detection in high-pressure liquid chromatography 失效
    高压液相色谱中的放射性检测

    公开(公告)号：US4267451A

    公开(公告)日：1981-05-12

    申请号：US965766

    申请日：1978-12-04

    申请人： Alan C. Berick

    发明人： Alan C. Berick

    IPC分类号： G01T1/00 ,  G01T1/20

    CPC分类号： G01T1/003 ,  G01N30/62 ,  G01N2030/77

    摘要： In a high-pressure liquid chromatography system, a radioactive sample in the effluent from a chromatographic column can be detected by passing the effluent into a cell packed with a fluorescent composition comprising a scintillation material chemically bonded to an inert substrate. A suitable fluorescent composition is microparticulate didansyl-N-2-aminoethyl-3-aminopropyl silica. Radioactive emissions from the sample cause scintillations in the fluorescent composition that can be detected through the walls of the cell. In order to obtain a chromatogram of the radioactivity occurring in the column, aliquots of the effluent from the column may be passed sequentially into a plurality of cells arranged on a carousel support structure that is rotable in stepwise fashion so that each cell passes in turn through a fill station, a detection station, and a wash station. At the fill station, each cell in turn is filled with an aliquot of effluent. As one cell is being filled at the fill station, the scintillations occurring in another cell are being monitored at the detection station, while still another cell is being washed at the wash station in order to remove the aliquot of effluent previously monitored for radioactivity. After being washed, each cell can subsequently be filled with a fresh aliquot of effluent at the fill station.

    摘要翻译： 在高压液相色谱系统中，来自色谱柱的流出物中的放射性样品可以通过将流出物流入填充有荧光组合物的细胞来检测，所述荧光组合物包含化学键合到惰性底物的闪烁材料。 合适的荧光组合物是微粒化的didanyl-N-2-氨基乙基-3-氨丙基二氧化硅。 来自样品的放射性发射导致可通过电池壁检测的荧光组合物中的闪烁。 为了获得柱中发生的放射性的色谱图，来自塔的流出物的等分试样可以顺序地通过排列在可以逐步方式旋转的圆盘传送带支撑结构上的多个单元格，使得每个单元依次通过 填充站，检测站和洗涤站。 在填充站，每个单元依次填充有等分的流出物。 当在填充站填充一个细胞时，在检测站处监测在另一个细胞中发生的闪烁，同时在洗涤站处洗涤另一个细胞，以便去除先前监测放射性的流出物的等分试样。 洗涤后，每个电池随后可以在填充站填充新鲜的流出物等分试样。