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    Neutron activation analysis method and apparatus for determining sodium and sodium compounds in liquid samples
    32.
    发明授权
    Neutron activation analysis method and apparatus for determining sodium and sodium compounds in liquid samples 失效
    用于测定液体样品中钠和钠化合物的中子活化分析方法和装置

    公开(公告)号：US4293379A

    公开(公告)日：1981-10-06

    申请号：US134046

    申请日：1980-03-26

    Applicant: Kerry J. Kelly ,  Arthur J. Kamp

    Inventor： Kerry J. Kelly ,  Arthur J. Kamp

    IPC: G01N23/222

    CPC classification number: G01N23/222 ,  G01N2223/01 ,  G01N2223/074 ,  G01N2223/202 ,  G01N2223/637 ,  G01N2223/638

    Abstract: Sodium is determined, virtually without known interferences, based on neutron activation of liquid sample to produce radioactive .sup.23 Ne activation product from .sup.23 Na, sparging of the sample whereby a headspace gas mixture comprising .sup.23 Ne in an inert sparging gas is collected, and remote analysis of the headspace gas mixture to determine total parent sodium based on monitoring radiation emissions of .sup.23 Ne. As an illustration of utility, the analysis is demonstrated as applicable to determinations of sodium in aqueous or organic matrices at concentrations of 1 part per thousand and greater using preferred forms of .sup.241 Am/Be radioactive isotope as the activation source.

    Abstract translation: 确定钠实际上没有已知的干扰，基于液体样品的中子活化，从23Na产生放射性23Ne活化产物，吹扫样品，从而收集在惰性喷射气体中包含23Ne的顶空气体混合物，并对顶空进行远程分析 气体混合物根据23Ne的辐射排放量来测定母体总钠。 作为实用性的说明，分析被证明适用于使用优选形式的241Am / Be放射性同位素作为活化源来测定水溶液或有机基质中钠浓度为1份/千升以上的钠。

    Determining the water cut and water salinity in an oil-water flow stream by measuring the sulfur content of the produced oil
    34.
    发明授权
    Determining the water cut and water salinity in an oil-water flow stream by measuring the sulfur content of the produced oil 失效
    通过测量所产生的油的硫含量来确定油 - 水流动流中的水分和水分盐度

    公开(公告)号：US4190768A

    公开(公告)日：1980-02-26

    申请号：US920569

    申请日：1978-06-29

    Applicant: Dan M. Arnold ,  Harry D. Smith, Jr.

    Inventor： Dan M. Arnold ,  Harry D. Smith, Jr.

    IPC: G01N23/221 ,  B65D90/00 ,  G01N23/222 ,  G01V5/00 ,  G01N23/00

    CPC classification number: G01N23/222 ,  G01N2223/0745 ,  G01N2223/637

    Abstract: Fluid in a pipeline or container at a refinery or at any of various petroleum producing operations is bombarded with neutrons and high energy gamma rays resulting from capture of thermal neutrons are detected. The spectra of the detected gamma rays are then analyzed to determine the relative presence of the elements sulfur, hydrogen and chlorine. From the sulfur measurement, the oil cut of the fluid is determined, enabling the water cut to be determined. From the determined water cut, water salinity can also be determined.

    Abstract translation: 在炼油厂或各种石油生产操作中的管道或容器中的流体被中子轰击，并且检测到由捕获热中子产生的高能γ射线。 然后分析检测到的γ射线的光谱，以确定元素硫，氢和氯的相对存在。 从硫测量中，确定流体的油切割，使得能够确定切水。 从确定的水切割，水盐度也可以确定。

    Apparatus and method for x-ray fluorescence analysis
    37.
    发明授权
    Apparatus and method for x-ray fluorescence analysis 有权

    公开(公告)号：US12007380B2

    公开(公告)日：2024-06-11

    申请号：US17743930

    申请日：2022-05-13

    Applicant: Malvern Panalytical B.V.

    Inventor： Bruno Vrebos ,  Lieven Kempenaers ,  Youhong Xiao

    IPC: G01N23/223 ,  G01N33/28

    CPC classification number: G01N33/287 ,  G01N23/223 ,  G01N2223/076 ,  G01N2223/1016 ,  G01N2223/204 ,  G01N2223/303 ,  G01N2223/313 ,  G01N2223/637 ,  G01N2223/652

    Abstract: This application relates to apparatus and method for x-ray fluorescence analysis. There is provided an X-ray fluorescence analysis apparatus for analysing a sample, The X-ray fluorescence analysis apparatus comprises an X-ray source, a measurement chamber for holding the sample in air, and an X-ray detector. The X-ray source is arranged to irradiate the sample with a primary X-ray beam, to cause the sample to fluoresce. The X-ray detector is arranged to detect characteristic X-rays emitted by the sample and to determine a measured X-ray intensity associated with the characteristic X-rays. An X-ray filter, which transmits the primary X-ray beam, is arranged between the X-ray source and the sample. The X-ray source comprises an anode of material having an atomic number that is less than 25. The X-ray fluorescence analysis apparatus further comprises a sensor arrangement configured to sense air pressure and air temperature. A processor receives the measured X-ray intensity. The processor also receives air pressure data and air temperature data from the sensor arrangement. The processor is configured to carry out a compensation calculation for adjusting the measured X-ray intensity using the air pressure data and the air temperature data.

    Insert for screening tray
    38.
    发明授权
    Insert for screening tray 有权

    公开(公告)号：US11977037B2

    公开(公告)日：2024-05-07

    申请号：US17286858

    申请日：2019-10-21

    Applicant: Rapiscan Holdings, Inc.

    Inventor： Philippe Desjeans-Gauthier ,  Emmanuel St-Aubin ,  Simon Archambault ,  William Awad

    IPC: G01N23/10 ,  G01N23/083 ,  G01V5/22

    CPC classification number: G01N23/10 ,  G01N23/083 ,  G01N2223/3307 ,  G01N2223/637 ,  G01N2223/639

    Abstract: An article for screening includes a top surface and a bottom surface. A forward wall, an aft wall and side walls each extend between the top surface and the bottom surface. A longitudinal recess extends at least partially across the top surface has a first lateral wall extending away from the top surface toward the bottom surface and meeting with a base wall at a predetermined angle therebetween for positioning of a liquid material relative to the first lateral wall and the base wall. The predetermined angle is for restricting data in a data range provided by a scanning operation of the liquid material to data provided within the predetermined angle between the first lateral wall and the base wall of the recess. The liquid material may be contained within a container positioned within the recess. Preferably, the article is an insert for a security screening tray.

    Biological imaging method using X-ray fluorescence
    39.
    发明授权
    Biological imaging method using X-ray fluorescence 有权

    公开(公告)号：US11946884B2

    公开(公告)日：2024-04-02

    申请号：US17571909

    申请日：2022-01-10

    Applicant: SHENZHEN XPECTVISION TECHNOLOGY CO., LTD.

    Inventor： Peiyan Cao ,  Yurun Liu

    IPC: G01N23/223 ,  G01N33/58

    CPC classification number: G01N23/223 ,  G01N33/582 ,  G01N2223/076 ,  G01N2223/612 ,  G01N2223/637

    Abstract: Disclosed herein is a method comprising: causing emission of characteristic X-rays of a first element attached to a first biological analyte; causing emission of characteristic X-rays of a second element attached to a second biological analyte; detecting a characteristic of the first biological analyte based on the characteristic X-rays of the first element and a characteristic of the second biological analyte based on the characteristic X-rays of the second element; wherein the first element and the second element are different; wherein the first biological analyte and the second biological analyte are in the same solution.

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