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    Self-powered nuclear radiation detectors
    2.
    发明公开
    Self-powered nuclear radiation detectors 失效
    Von fremden SpannungsquellenunabhängigerStrahlungsdetektor。

    公开(公告)号：EP0102755A1

    公开(公告)日：1984-03-14

    申请号：EP83304455.5

    申请日：1983-08-02

    Applicant: WESTINGHOUSE ELECTRIC CORPORATION

    Inventor： Hagadorn, Weston M.

    IPC: G01T3/00

    CPC classification number: G01T3/006

    Abstract: Self-powered gamma-responsive nuclear radiation detector with an emitter electrode of a lead and calcium alloy. The alloy contains calcium in an amount of between 25 and 50 atom percent. This alloy exhibits good ductibility with a melting point of at least 630°C.

    Abstract translation: 具有铅和钙合金发射电极的自供电γ响应核辐射探测器。 该合金含有25至50原子％的钙。 该合金具有良好的延展性，熔点至少为630℃

    Wide range radiation monitoring apparatus
    4.
    发明公开
    Wide range radiation monitoring apparatus 失效
    在einem grossen Messbereich arbeitende Strahlennachweis-Vorrichtung。

    公开(公告)号：EP0016622A1

    公开(公告)日：1980-10-01

    申请号：EP80300795.4

    申请日：1980-03-14

    Applicant: WESTINGHOUSE ELECTRIC CORPORATION

    Inventor： Goldstein, Norman Phillip

    IPC: G01T3/00 ,  H01J47/02

    CPC classification number: G01T3/006 ,  H01J47/02

    Abstract: This invention relates to a simple and rugged, wide- range radiation monitor adapted for use at various locations around a nuclear reactor plant.
    An emitter plate (E) of a high atomic number material is positioned between collector plates (C7, C2) of a low atomic number material and the ionization current developed in the gap regions therebetween in response to low radiation fields and the self-powered current developed in response to high radiation fields is measured by a current measuring circuit (M) as an indication of impinging radiation. The spacing between the collector and emitter plates and accordingly the gas volume defined therebetween is great enough that the ionization current dominates the self-powered current at low radiation fields.

    Abstract translation: 本发明涉及适用于在核反应堆工厂周围的不同位置使用的简单且坚固的宽范围辐射监测器。 高原子序数材料的发射极板（E）位于低原子序数材料的集电板（C1，C2）之间，并且响应于低辐射场和自供电电流而在其间的间隙区域中产生的电离电流 通过电流测量电路（M）测量响应于高辐射场而开发的，作为入射辐射的指示。 集电极和发射极板之间的间距以及因此在其间限定的气体体积足够大，使得电离电流在低辐射场下支配自供电电流。

    LONG-LIFESPAN IN-CORE INSTRUMENT
    5.
    发明公开
    LONG-LIFESPAN IN-CORE INSTRUMENT 审中-公开
    长寿命核心仪器

    公开(公告)号：EP3214621A1

    公开(公告)日：2017-09-06

    申请号：EP15854311.6

    申请日：2015-08-13

    Applicant: Korea Hydro & Nuclear Power Co. Ltd.

    Inventor： CHA, Kyoon Ho ,  KIM, Yong Deog ,  ROH, Koyung Ho ,  KIM, Yong Bae

    IPC: G21C17/108 ,  G01T3/00

    CPC classification number: G01T3/006 ,  G01T3/00 ,  G21C17/104 ,  G21C17/108 ,  G21C17/112 ,  G21C17/116

    Abstract: A long-lifespan in-core instrument having an extended lifespan due to an enhanced combustion lifespan of an emitter according to the present invention comprises: a central tube; an outer sheath tube distanced from the outer circumferential surface of the central tube; self-powered neutron detectors placed between the central tube and outer sheath tube, and each comprising an emitter of a material having a reaction cross section with neutron that is comparatively smaller than that of rhodium; a background detector for compensating for the background noise signal; core exit thermocouples for detecting the core exit temperature; and filler wires filling in the space between the self-powered neutron detectors, background detector and core exit thermocouples, and as such, the present invention can markedly reduce the amount of spent in-core instrument waste, which is high-level radioactive material, and thus can contribute in securing a utility space for the high-level waste material, as well as in reducing radiation exposure of the nuclear power plant personnel.

    Abstract translation: 由于根据本发明的发射器的燃烧寿命增加而具有延长的寿命的长寿命的堆芯内仪器包括：中心管; 远离中心管的外周面的外套管; 自供电的中子探测器，放置在中心管和外套管之间，并且每个中子探测器包括具有反应截面的材料的发射器，反应截面的中子比铑的反应截面小; 背景检测器，用于补偿背景噪声信号; 用于检测堆芯出口温度的堆芯出口热电偶; 填充在自供电中子探测器，背景探测器和核心出口热电偶之间的空间中的填充金属丝，因此，本发明可以显着减少作为高级放射性材料的废芯内仪器浪费量， 因此可以有助于确保高水平废料的实用空间以及减少核电厂人员的辐射暴露。

    SELF-POWERED NUCLEAR DETECTOR
    6.
    发明公开
    SELF-POWERED NUCLEAR DETECTOR 审中-公开
    自供电的核探测器

    公开(公告)号：EP2992532A2

    公开(公告)日：2016-03-09

    申请号：EP14814182.3

    申请日：2014-03-26

    Applicant: Westinghouse Electric Company Llc

    Inventor： POPA, Frank D. ,  MCDONALD, Stuart M.

    IPC: G21C17/10

    CPC classification number: G01T3/006 ,  G21C17/102 ,  G21C17/108

    Abstract: A self-powered neutron detector having an emitter with a slightly negative bias voltage that assures that an increase in the electrons that enter the insulator are counted and decreases or eliminates the gamma induced prompt signal. Variations in the size of the bias is used as a diagnostic tool to estimate the gamma induced prompt signal.

    Abstract translation: 一个自供电的中子探测器，具有一个稍微负偏压的发射器，确保进入绝缘子的电子的增加被计数，并减少或消除由伽玛引发的提示信号。 偏差大小的变化被用作诊断工具来估计伽玛诱发的即时信号。

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