Shielding device for measurement of neutron residual stress in radioactive samples

A technology of residual stress and shielding device, applied in the direction of measuring device, measuring force, instrument, etc., to avoid radiation leakage and improve shielding effect

Active Publication Date: 2018-04-17
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Description
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Problems solved by technology

[0003] Major neutron scattering laboratories in the world are actively carrying out related work on the use of neutron diffraction technology to measure the residual stress of industrial components, but there is no shielding device specially designed for the measurement of radioactive samples in view of the radioactive properties of radioactive samples. open literature report

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  • Shielding device for measurement of neutron residual stress in radioactive samples
  • Shielding device for measurement of neutron residual stress in radioactive samples
  • Shielding device for measurement of neutron residual stress in radioactive samples

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Embodiment Construction

[0031] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] Such as Figure 1-3 Shown is the shielding device for radioactive sample neutron residual stress measurement provided by the present invention, the device includes a device body 1, the device body 1 is a cuboid structure, the cuboid structure adopts a three-layer box-type composite structure, wherein, Between two adjacent box layers is a stepped structure combination 14, which can ensure that the internal rays do not leak through straight seams and improve the shielding performance of the device. The top four corners of the device main body 1 are provided with hoisting rings 15 to facilitate the movement and transportation of the device.

[0033] Such as image 3 As shown, it is a structural schematic view of the middle box 2 of the present invention, the middle box 2 is arranged between the upper box and the lo...

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Abstract

The invention relates to a shielding device for radioactive sample neutron residual stress measurement. The shielding device for the radioactive sample neutron residual stress measurement comprises a device main body (1), the device main body (1) is of a three-layer box-type combined structure, and a middle box (2) is internally provided with a hollow area (3) used for containing a sample clamping device body (4); an incidence pore channel (5), an emergent pore channel (6) and a diffraction pore channel (7) are formed in the side wall of the middle box (2), and the incidence pore channel (5), the emergent pore channel (6) and the diffraction pore channel (7) are all communicated with the hollow area (3). The shielding device for the radioactive sample neutron residual stress measurement not only meets the measurement of radioactive sample three-dimensional lossless depth residual stress but also meets the safety requirement on radioactive sample radiation shielding, and the convenience and the practicability are achieved.

Description

technical field [0001] The invention belongs to the technical field of neutron scattering, in particular to a shielding device for neutron residual stress measurement of radioactive samples. Background technique [0002] Based on the neutron diffraction technique, the shielding device provided by the invention is specially used for the three-dimensional non-destructive measurement experiment of residual stress of radioactive samples. The main function is to shield and protect the nuclear radiation of the sample, to meet the safety dose requirements around the sample transfer and measurement, and to meet the technical requirements of the three-dimensional neutron residual stress test. Radioactive samples are generally block or strip metal solid samples. [0003] Major neutron scattering laboratories in the world are actively carrying out related work on the use of neutron diffraction technology to measure the residual stress of industrial components, but there is no shieldin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/25
Inventor 陈东风刘蕴韬高建波李峻宏魏国海孙凯王洪立刘晓龙李眉娟韩松柏阳林峰李玉庆
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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