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1. 发明授权

US4998269A Device for on-line measurement of the gamma radiation emitted by the water in a nuclear reactor circuit, in particular the primary cooling circuit of a pressurized water nuclear reactor 失效
标题翻译：用于在线测量核反应堆电路中的水发射的γ辐射的设备，特别是加压水核反应堆的主冷却回路
公开(公告)号：US4998269A
公开(公告)日：1991-03-05
申请号：US325579
申请日：1989-03-20
申请人： Raymond Warlop , Francoise Montagnon
发明人： Raymond Warlop , Francoise Montagnon
IPC分类号： G01T1/167 , G01T7/00 , G21C17/02 , G21C17/022
CPC分类号： G21C17/022
摘要： A measurement device for on-line measurement of the gamma radiation emitted by the water in a nuclear reactor circuit, in particular the primary cooling circuit of a pressurized water nuclear reactor, the measurement device comprising:at least one volume (101, 102) for metering the fluid to be analyzed;a radiation detector (200) placed facing the volume; and a collimator interposed between the volume and the radiation detector, the collimator being constituted by a plurality of collimators (431, 432, 433) of different sizes mounted on a common member (400) which is movable relative to the volume-and-detector assembly, with the position of the moving member being determined automatically as a function of the measurement signal delivered by the detector so that the greater the intensity of the radiation revealed by the delivered signal, the smaller the size of the collimator interposed between the detector and the volume.
摘要翻译：一种用于在线测量核反应堆电路中的水，特别是加压水核反应堆的主冷却回路发射的γ射线的测量装置，所述测量装置包括：至少一个容积（101,102），用于计量要分析的流体; 面向所述体积放置的放射线检测器（200）; 以及插入在所述体积和所述辐射检测器之间的准直器，所述准直器由安装在公共构件（400）上的不同尺寸的多个准直器（431,432,433）构成，所述公共构件可相对于所述体积检测器组件，其中移动构件的位置被自动确定为由检测器传递的测量信号的函数，使得被传递的信号所揭示的辐射的强度越大，插入在检测器和检测器之间的准直器的尺寸越小音量。

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