ADVANCED THERMAL NEUTRON DETECTORS AND ASSOCIATED METHODS

    公开(公告)号:US20180299569A1

    公开(公告)日:2018-10-18

    申请号:US15952610

    申请日:2018-04-13

    CPC classification number: G01T3/008 H01J47/02 H01J47/12 H01J47/1205

    Abstract: A narrow thermal neutron detector includes a slidably receivable ionization thermal neutron detector module within an overall housing body. An active sheet layer of the ionization thermal neutron detector module can be tensioned across its width. The ionization thermal neutron detector module can include module upper major surface extents and module lower surface extents such that, when installed within the housing body, the module upper major surface extents are in a first spaced apart confronting relationship with housing upper major surface extents to define a first clearance and module lower major surface extents are in a second spaced apart confronting relationship with housing lower major surface extents to define a second clearance to accommodate housing flexing due to ambient pressure change. The housing body can be formed with a single opening for receiving the ionization thermal neutron detection module or with opposing first and second opposing end openings.

    Advanced thermal neutron detectors and associated methods

    公开(公告)号:US11885920B2

    公开(公告)日:2024-01-30

    申请号:US17477512

    申请日:2021-09-16

    CPC classification number: G01T3/008 G01T3/00 H01J47/02 H01J47/12 H01J47/1205

    Abstract: A narrow thermal neutron detector includes a slidably receivable ionization thermal neutron detector module within an overall housing body. An active sheet layer of the ionization thermal neutron detector module can be tensioned across its width. The ionization thermal neutron detector module can include module upper major surface extents and module lower surface extents such that, when installed within the housing body, the module upper major surface extents are in a first spaced apart confronting relationship with housing upper major surface extents to define a first clearance and module lower major surface extents are in a second spaced apart confronting relationship with housing lower major surface extents to define a second clearance to accommodate housing flexing due to ambient pressure change. The housing body can be formed with a single opening for receiving the ionization thermal neutron detection module or with opposing first and second opposing end openings.

    Multiplier Tube Neutron Detector
    5.
    发明申请
    Multiplier Tube Neutron Detector 审中-公开
    乘数管中子检测器

    公开(公告)号:US20130299713A1

    公开(公告)日:2013-11-14

    申请号:US13885667

    申请日:2011-11-11

    CPC classification number: G01T3/00 G01T1/28 G01V5/04 G01V5/107 H01J47/1205

    Abstract: A neutron detecting device using a neutron-reactive material as the source of charged particles to feed conventional dynode-based electron multiplier which not gas-filled (i.e., with 3He). The detector comprises a neutron-reacting material that produces charged particles, coupled with an electron multiplier that is known for use in photomultipliers. The neutron-reacting material is deposited on a substrate at the entrance to the electron multiplier. Charged particles from the neutron-reacting material impinge on the first dynode of the electron multiplier, where, in turn, electrons are generated. The secondary electrons are collected by a second dynode, and the charge so collected is amplified in each succeeding dynode stage in a cascade effect. The charge pulse from the anode is processed by subsequent pulse processing electronics and counting electronics to provide a count rate that is proportional to the neutron flux incident on the neutron-reacting material.

    Abstract translation: 使用中子反应性材料作为带电粒子源的中子检测装置,用于馈送未充气的(即3He)的常规的基于倍增极的电子倍增器。 检测器包括产生带电粒子的中子反应材料,与已知用于光电倍增管的电子倍增器耦合。 中子反应材料沉积在电子倍增器入口处的衬底上。 来自中子反应材料的带电粒子撞击电子倍增器的第一倍增极,其中又产生电子。 二次电子由第二倍增电极收集,并且如此收集的电荷在后续的倍增电极阶段中以级联效应放大。 来自阳极的充电脉冲由随后的脉冲处理电子器件和计数电子器件处理,以提供与入射在中子反应材料上的中子通量成比例的计数速率。

    Neutron detector and method of making

    公开(公告)号:US20130067741A1

    公开(公告)日:2013-03-21

    申请号:US13200023

    申请日:2011-09-15

    CPC classification number: G01T3/008 H01J47/1205 Y10T29/49126 Y10T29/49155

    Abstract: A neutron detector comprises at least two conductive cathode sheets lying parallel to one another and coated with neutron reactive material on at least one side thereof; dielectric material separating the cathode sheets and covering less than about 80% of their surface area; and a plurality of anode wires lying generally parallel to the cathode sheets and separated from them by the dielectric, with the distance between adjacent anode wires being no more than twenty times the distance between said cathode sheets. The cathode sheets may be flat or curved; they may be separate plates or they may be successive folds or windings of a single folded or spiral-shaped metal sheet. Related methods for building the detector are disclosed.

    Neutron Detection
    7.
    发明申请
    Neutron Detection 有权
    中子检测

    公开(公告)号:US20110233420A1

    公开(公告)日:2011-09-29

    申请号:US13069898

    申请日:2011-03-23

    Abstract: A neutron detector includes a microchannel plate having a structure that defines a plurality of microchannels, and layers of materials disposed on walls of the microchannels. The layers include a layer of neutron sensitive material, a layer of semiconducting material, and a layer of electron emissive material. For example, the layer of neutron sensitive material can include boron-10, lithium-6, or gadolinium.

    Abstract translation: 中子检测器包括具有限定多个微通道的结构的微通道板和设置在微通道的壁上的材料层。 这些层包括中子敏感材料层,半导体材料层和电子发射材料层。 例如,中子敏感材料层可以包括硼-10,锂-6或钆。

    ADVANCED THERMAL NEUTRON DETECTORS AND ASSOCIATED METHODS

    公开(公告)号:US20230408714A1

    公开(公告)日:2023-12-21

    申请号:US18238475

    申请日:2023-08-26

    CPC classification number: G01T3/008 H01J47/02 H01J47/12 H01J47/1205 G01T3/00

    Abstract: A narrow thermal neutron detector includes a slidably receivable ionization thermal neutron detector module within an overall housing body. An active sheet layer of the ionization thermal neutron detector module can be tensioned across its width. The ionization thermal neutron detector module can include module upper major surface extents and module lower surface extents such that, when installed within the housing body, the module upper major surface extents are in a first spaced apart confronting relationship with housing upper major surface extents to define a first clearance and module lower major surface extents are in a second spaced apart confronting relationship with housing lower major surface extents to define a second clearance to accommodate housing flexing due to ambient pressure change. The housing body can be formed with a single opening for receiving the ionization thermal neutron detection module or with opposing first and second opposing end openings.

    Sealed boron coated straw detectors
    9.
    发明授权
    Sealed boron coated straw detectors 有权
    密封硼涂层吸管探测器

    公开(公告)号:US09218946B2

    公开(公告)日:2015-12-22

    申请号:US13106785

    申请日:2011-05-12

    Applicant: Jeffrey Lacy

    Inventor: Jeffrey Lacy

    CPC classification number: H01J47/1205 G01T3/00 G01T3/008 G01T3/06

    Abstract: The present invention is a method and apparatus for operating boron-coated straw detectors in sealed mode, without the need for a continuous flow of gas. Sealed-mode operation is necessary when using the boron-coated straw detectors in the field, where access to a continuous flow of the required gas mixture is not practical. Also, sealed-mode operation is necessary when the straw detectors are used as portable instruments, that must be moved from one location to the next swiftly, or that must be operated while in motion.

    Abstract translation: 本发明是一种在密封模式下操作硼涂层吸管探测器的方法和装置,而不需要连续的气体流动。 在现场使用硼涂层的稻草探测器时,必须进行密封模式操作,在这种情况下,所需气体混合物的连续流动是不实际的。 此外,当秸秆检测器用作便携式仪器时,密封模式操作是必要的,必须从一个位置快速移动到下一个位置,或者必须在运动中操作。

    Method of making a neutron detector
    10.
    发明授权
    Method of making a neutron detector 有权
    制造中子探测器的方法

    公开(公告)号:US08973257B2

    公开(公告)日:2015-03-10

    申请号:US13200023

    申请日:2011-09-15

    CPC classification number: G01T3/008 H01J47/1205 Y10T29/49126 Y10T29/49155

    Abstract: Methods for building a neutron detector are disclosed, in which the neutron detector comprises at least two conductive cathode sheets lying parallel to one another and coated with neutron reactive material on at least one side thereof; dielectric material separating the cathode sheets and covering less than about 80% of their surface area; and a plurality of anode wires lying generally parallel to the cathode sheets and separated from them by the dielectric, with the distance between adjacent anode wires being no more than twenty times the distance between said cathode sheets. The cathode sheets may be flat or curved; they may be separate plates or they may be successive folds or windings of a single folded or spiral-shaped metal sheet.

    Abstract translation: 公开了用于构建中子探测器的方法,其中中子探测器包括至少两个平行于彼此并且在其至少一侧上涂覆有中子反应性材料的导电阴极片; 绝缘材料分离阴极片并覆盖小于其表面积的约80%; 以及大体平行于阴极片的多个阳极线,并且通过电介质与阳极线分离,相邻阳极线之间的距离不超过所述阴极片之间的距离的二十倍。 阴极片可以是平的或弯曲的; 它们可以是单独的板,或者它们可以是单个折叠或螺旋形金属板的连续折叠或绕组。

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