Pressurized water reactor nuclear fuel rod neutrongraphy detection device and detection method
A technology for nuclear fuel rods and detection devices, which is applied in reactors, nuclear engineering, nuclear power generation, etc., can solve the problems of lack of design experience, complicated technology, and few public releases of detection device design data, so as to achieve easy access and simple methods Effect
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[0025] Taking the nuclear fuel rods of a pressurized water reactor as an example, the nuclear fuel rods enter the shielding base through the opening of the nuclear fuel rod channel 1 on the shielding base, thereby entering the neutron beam for exposure. The shielding base is rectangular, and the nuclear fuel rod passage 1 is located at the center of the shielding base, vertically downward; the nuclear fuel rod passage 1 is a hollow cylindrical structure with a diameter of 3.5 cm (matching with the handle size of the transfer container); the nuclear fuel rod passage 1 The opening position is the top of the shielded container, and the depth is 25cm. Because it is required that the nuclear fuel rods can all be located in the neutron beam during the second imaging, the nuclear fuel rods must all be located in the passage of the nuclear fuel rods during the second imaging. When the depth is 2cm (the distance between the beam opening and the top of the shielding base)+20cm (the heigh...
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