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13 条记录 (耗时 0.02 秒)

    Cellular thermal neutron detector
    7.
    发明授权
    Cellular thermal neutron detector 有权
    蜂窝热中子探测器

    公开(公告)号：US09000392B2

    公开(公告)日：2015-04-07

    申请号：US13726285

    申请日：2012-12-24

    申请人： Nuctech Company Limited ,  Tsinghua University

    发明人： Yigang Yang ,  Hejun Zhou ,  Yi Liu ,  Qinjian Zhang ,  Yongqiang Wang

    IPC分类号： G01T3/00

    CPC分类号： G01T3/00 ,  G01T3/008

    摘要： The present invention provides a cellular thermal neutron detector, comprising: a cellular structure comprised of one or more hollow regular hexagonal prism-shaped cellular units, wherein a neutron absorbing material is coated on an inner side of a pipe wall of each of the cellular units. Since the neutron-sensitive cellular structure is employed, the present invention can perform thermal neutron detection without using the scarce nuclide 3He, and effectively reduce the manufacture costs of the thermal neutron detector. Further, the present invention has characteristics such as a reduced or eliminated neutron detecting dead zone.

    摘要翻译： 本发明提供一种细胞热中子检测器，包括：由一个或多个中空规则六边形棱柱形细胞单元组成的细胞结构，其中中子吸收材料涂覆在每个细胞单元的管壁的内侧 。 由于采用了中子敏感的细胞结构，本发明可以在不使用稀少的核素3He的情况下进行热中子检测，有效地降低热中子检测器的制造成本。 此外，本发明具有诸如减少或消除的中子检测死区的特征。

    Dual energy detector and radiation inspection system
    8.
    发明授权
    Dual energy detector and radiation inspection system 有权

    公开(公告)号：US10386502B2

    公开(公告)日：2019-08-20

    申请号：US15853961

    申请日：2017-12-26

    申请人： NUCTECH COMPANY LIMITED

    发明人： Shuwei Li ,  Qingjun Zhang ,  Ziran Zhao ,  Junxiao Wang ,  Xiang Zou ,  Bozhen Zhao ,  Lifeng Sun ,  Yongqiang Wang

    IPC分类号： G01T1/20 ,  G01V5/00

    摘要： The present application relates to a dual energy detector and a radiation inspection system. The dual energy detector comprises: a detector module mount and a plurality of detector modules. The detector module includes a higher energy detector array and a lower energy detector array, which are juxtaposedly provided on said detector module mount to be independently irradiated. The present application may simplify the arrangement of the photodiodes and printed circuit boards to which the higher and lower energy detector arrays are connected, such that necessary thickness dimension of the detector module mount is reduced, thereby facilitating the installation and use of the dual energy detector of the present application. On the other hand, the radiation beam in the present application may be independently irradiated to the higher and lower energy detector arrays juxtaposed to each other, which reduces to certain extent the mutual restriction during selection of the higher and lower energy detector arrays.

    Afterglow detection device and afterglow detection method
    9.
    发明授权
    Afterglow detection device and afterglow detection method 有权

    公开(公告)号：US10775320B2

    公开(公告)日：2020-09-15

    申请号：US16403555

    申请日：2019-05-05

    申请人： NUCTECH COMPANY LIMITED

    发明人： Shuwei Li ,  Wenjian Zhang ,  Xiang Zou ,  Bozhen Zhao ,  Qingjun Zhang ,  Huishao He ,  Yongqiang Wang ,  Yanchun Wang

    IPC分类号： A61B6/00 ,  G01N23/04 ,  G01T1/20

    摘要： The present disclosure discloses an afterglow detection device and an afterglow detection method. The afterglow detection device comprises: an X-ray tube for emitting an X-ray beam; a first reading circuit for receiving a first detected signal from a to-be-detected detector to form and output a first measurement signal according to the first detected signal, the to-be-detected detector being connected to the first reading circuit and disposed on a beam-out side of the X-ray tube to receive radiation of the X-ray beam and outputting the first detected signal to the first reading circuit at the time of detection; a residual ray detector disposed on a beam-out side of the X-ray tube; a second reading circuit connected to the residual ray detector for receiving a second detected signal from the residual ray detector to form and output a second measurement signal according to the second detected signal.

    Large-area X-ray gas detector
    10.
    发明授权
    Large-area X-ray gas detector 有权

    公开(公告)号：US10473795B2

    公开(公告)日：2019-11-12

    申请号：US16026106

    申请日：2018-07-03

    申请人： Nuctech Company Limited

    发明人： Yongqiang Wang ,  Qingjun Zhang ,  Yuanjing Li ,  Ziran Zhao ,  Lifeng Sun ,  Nan Bai ,  Xingliang Zhai

    IPC分类号： G01T1/185 ,  G01T3/00 ,  G01V5/00

    摘要： A large-area X-ray gas detector includes a housing having an inner cavity and a ray entrance communicated with the inner cavity, a thin entrance window and a signal collection module. The inner cavity is filled with a working gas which is a non-electronegativity gas sensitive to the X-ray. The entrance window is hermetically connected to the ray entrance such that the X-ray enters into the inner cavity. The signal collection module comprises an anode wire electrode layer and a cathode electrode layer arranged parallel with each other in the inner cavity, in which the anode wire electrode layer has an anode wire for accessing to a high voltage, and the cathode electrode layer is grounded. The anode wire electrode layer collects electrons generated by the working gas under an action of the X-ray.