知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

6 条记录 (耗时 0.012 秒)

    Method and apparatus for the inspection of contained materials
    1.
    发明授权
    Method and apparatus for the inspection of contained materials 有权

    公开(公告)号：US10852257B2

    公开(公告)日：2020-12-01

    申请号：US15024284

    申请日：2014-10-28

    申请人： Kromek Limited

    发明人： Andrew Keith Powell

    IPC分类号： G01N23/10 ,  G01V5/00 ,  G01N23/083

    摘要： A method for the inspection of contained flowable materials within containers, such as detecting an explosive liquid in a luggage, and an apparatus for performing the method are described. The method includes the steps of: performing a radiation scan, using X-rays or Gamma rays, of a target item container of contained flowable material in a radiation scanning system to derive a spatially distributed and spectroscopically resolved measured dataset of the intensity of radiation emergent from the target item; considering the spatially distributed and spectroscopically resolved dataset of transmitted radiation intensity to be nominally determined in accordance with a relationship: [O]·[δ]=[λ] where the operators [δ] and [λ] define, respectively, physical parameters describing the liquid and the container and the system response and the operator [O] defines the relationships between the system response and the liquid and container parameters; numerically processing the measured dataset by operator inversion in order to derive a best fit solution of: [δ]=[O]−1·[λ]; and using that derived solution to determine the threat status of the target item.

    Identification of materials
    3.
    发明授权
    Identification of materials 有权

    公开(公告)号：US10175382B2

    公开(公告)日：2019-01-08

    申请号：US14441929

    申请日：2013-11-11

    申请人： Kromek Limited

    发明人： Ian Radley ,  Benjamin John Cantwell ,  Andrew Keith Powell

    IPC分类号： G01N23/083 ,  G01V5/00 ,  G01N23/087

    摘要： A method of radiological examination of an object for the identification and detection of the composition the object comprising the steps of: irradiating an object under test with high energy radiation such as x-rays or gamma-rays and collecting radiation emergent from the object at a suitable detector system in such manner that emergent radiation intensity data is collected for the entire volume of the object under test; numerically processing the radiation intensity data to obtain a first data item correlated to the total number of electrons within the sample; applying an alternative method to obtain a second data item correlated to another property of the sample; using the first and second data items to derive an indication of the material content of the sample.

    Method of spectral data detection and manipulation
    4.
    发明授权
    Method of spectral data detection and manipulation 有权

    公开(公告)号：US10156647B2

    公开(公告)日：2018-12-18

    申请号：US14442181

    申请日：2013-11-22

    申请人： Kromek Limited

    发明人： Benjamin John Cantwell ,  Andrew Keith Powell ,  Ian Radley

    IPC分类号： G01T7/00 ,  G01T1/36

    摘要： A method is for the deconvolution of a statistically noisy spectral dataset is described comprising the steps of: a. obtaining a spectroscopically resolved dataset of measured flux from a sample that has been collected using a suitable detector radiation system; b. generating an initial estimate of the true spectrum; c. modifying the estimate of the true spectrum by a response function of the detector used to collect the measured flux dataset so as to generate an estimate flux dataset; d. computing a merit value for statistical fit between the measured flux dataset and the estimate flux dataset; e. applying a perturbation to a value of the estimate of the true spectrum; f. repeating steps c and d to the estimate of the true spectrum so changed, accepting the change to the estimate of the true spectrum if the resultant merit value indicates an improvement or if the resultant merit value indicates a deterioration of less than a limit margin, and rejecting the change to the estimate of the true spectrum if the resultant merit value indicates a deterioration of more than a limit margin; and g. repeating steps e and f for each further value of the estimate of the true spectrum to obtain a modified estimate of the true spectrum; h. repeating steps c to g for successive modified estimates of the true spectrum while reducing the limit margin. More completely, a method of detection of a spectrally resolved radiation dataset is described embodying the above.

    IDENTIFICATION OF MATERIALS
    6.
    发明申请
    IDENTIFICATION OF MATERIALS 审中-公开
    材料鉴定

    公开(公告)号：US20150285941A1

    公开(公告)日：2015-10-08

    申请号：US14441929

    申请日：2013-11-11

    申请人： KROMEK LIMITED

    发明人： Ian Radley ,  Benjamin John Cantwell ,  Andrew Keith Powell

    IPC分类号： G01V5/00 ,  G01N23/087

    CPC分类号： G01V5/0041 ,  G01N23/083 ,  G01N23/087 ,  G01V5/0016

    摘要： A method of radiological examination of an object for the identification and detection of the composition the object comprising the steps of: irradiating an object under test with high energy radiation such as x-rays or gamma-rays and collecting radiation emergent from the object at a suitable detector system in such manner that emergent radiation intensity data is collected for the entire volume of the object under test; numerically processing the radiation intensity data to obtain a first data item correlated to the total number of electrons within the sample; applying an alternative method to obtain a second data item correlated to another property of the sample; using the first and second data items to derive an indication of the material content of the sample.

    摘要翻译： 一种用于识别和检测组合物的物体的放射学检查方法，包括以下步骤：用诸如x射线或γ射线的高能量辐射照射待测物体，并收集来自物体的辐射 适当的检测器系统，以对被测物体的整个体积收集出射辐射强度数据; 数字处理辐射强度数据以获得与样本内的电子总数相关的第一数据项; 应用替代方法来获得与样本的另一属性相关的第二数据项; 使用第一和第二数据项来导出样本的材料内容的指示。