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Monitoring device for measuring the angle of displacement of an article such as a spent core fuel rod beam radiated gamma - and neutron spectrum
Monitoring device for measuring the angle of displacement of an article such as a spent core fuel rod beam radiated gamma - and neutron spectrum
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机译:用于测量诸如乏核燃料棒束辐射的伽玛和中子能谱等物品的位移角度的监控装置
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摘要
The present invention concerns a monitor for measuring both the gamma spectrum and neutrons emitted by a spent nuclear fuel pin or pin assembly. According to the invention, it comprises a lead block (1) presenting a front face (8) intended to be brought close to said pin (7) or assembly to be measured and incorporating- a gamma detector (2) for gamma spectroscopy located close to a rear face of said block and associated with a collimator (4) extending from said front face to said gamma detector,- two neutron detectors (3) which extend parallelly to each other and to said front face and are disposed symmetrically on either side of the axis of said collimator (4) close to said front face (8).
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