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Effective interlayer of biological shielding wall and bio-shield wall and unit

A biological shielding and interlayer technology, applied in shielding, reactors, nuclear engineering, etc., can solve the problems of complex structure and cannot effectively shield neutron and gamma radiation at the same time, and achieve stable performance, compact structure and save experimental space. Effect

Pending Publication Date: 2019-10-25
RENMIN UNIVERSITY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Other shielding devices, such as split screen doors or hanging sliding doors composed of steel plates and boron-containing polyethylene plates, and shielding walls composed of boron carbide panels, cannot effectively shield neutrons and gamma radiation at the same time or due to factors such as their own complex structure. fulfil requirements

Method used

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  • Effective interlayer of biological shielding wall and bio-shield wall and unit
  • Effective interlayer of biological shielding wall and bio-shield wall and unit
  • Effective interlayer of biological shielding wall and bio-shield wall and unit

Examples

Experimental program
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Effect test

Embodiment 1

[0074] The effective interlayer of the biological shielding wall in this embodiment includes a boron-containing rubber layer, a lead-antimony alloy plate layer and a boron-containing polyethylene plate layer in sequence, and the above-mentioned layers are stacked in sequence during work, wherein,

[0075] The material of the boron-containing rubber layer is rubber with a boron content of 3%;

[0076] The material of the lead-antimony alloy plate layer is a lead-antimony alloy with an antimony content of 3%;

[0077] The material of the boron-containing polyethylene sheet layer is polyethylene with a boron content of 3%.

[0078] like figure 1 , 2 As shown, the biological shielding wall 1 of this embodiment is supported and placed by a supporting fixture. The supporting and fixing device includes a supporting and fixing frame and an aluminum base plate. The supporting and fixed frame includes 4 aluminum ribs 2, 4 aluminum ribs 4 and 2 aluminum connecting plates 5. The 4 alu...

Embodiment 2

[0082] The effective interlayer of the biological shielding wall in this embodiment includes a boron-containing rubber layer, a lead-antimony alloy plate layer and a boron-containing polyethylene plate layer in sequence, and the above-mentioned layers are stacked in sequence during work, wherein,

[0083] The material of the boron-containing rubber layer is rubber with a boron content of 4%;

[0084] The material of the lead-antimony alloy plate layer is a lead-antimony alloy with an antimony content of 4%;

[0085]The material of the boron-containing polyethylene sheet layer is polyethylene with a boron content of 8%.

[0086] The structure of the biological shielding wall and unit of this embodiment is similar to that of Embodiment 1, and will not be repeated here.

Embodiment 3

[0088] The effective interlayer of the biological shielding wall in this embodiment includes a boron-containing rubber layer, a lead-antimony alloy plate layer and a boron-containing polyethylene plate layer in sequence, and the above-mentioned layers are stacked in sequence during work, wherein,

[0089] The material of the boron-containing rubber layer is rubber with a boron content of 5%;

[0090] The material of the lead-antimony alloy plate layer is a lead-antimony alloy with an antimony content of 5%;

[0091] The material of the boron-containing polyethylene sheet layer is polyethylene with a boron content of 10%.

[0092] The structure of the biological shielding wall and unit of this embodiment is similar to that of Embodiment 1, and will not be repeated here.

[0093] The biological shielding wall of the embodiment of the present invention can effectively shield neutrons and gamma radiation, and has a compact structure and saves experimental space; the biological sh...

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Abstract

The invention relates to an effective interlayer of a biological shielding wall and a biological shielding wall and unit. The effective interlayer of the biological shielding wall comprises a boron-containing rubber layer, a lead-bismuth alloy plate layer and a boron-containing polyethylene plate layer in sequence, and the layers are sequentially stacked during operation; the boron-containing rubber layer is closest to a radiation source, wherein the boron-containing rubber layer is prepared from rubber with the boron content of 3%-5%; the lead-bismuth alloy plate layer is prepared from a lead-bismuth alloy with the niobium content of 3%-5%; and the boron-containing polyethylene sheet layer is prepared from polyethylene with the boron content of 3%-10%. The effective interlayer of the biological shielding wall can effectively shield stray neutrons and gamma rays generated during an experiment and is suitable for the biological shielding wall of a neutron spectrometer with compact experimental space, installation is easy, disassembly without damage is easy, transportation and reuse are convenient, and the effective interlayer is especially suitable for biological shielding walls ofneutron spectrometers in strong magnetic field sample environments and polarized neutron experiments.

Description

technical field [0001] The invention relates to the technical field of biological shielding, in particular to an effective interlayer of a biological shielding wall, a biological shielding wall and a biological shielding wall unit. Background technique [0002] In recent years, with the development of large scientific devices in the country, the rapid development of neutron sources such as China Advanced Research Reactor CARR, China Mianyang Research Reactor CMRR, and China Spallation Neutron Source CSNS, the construction of neutron scattering spectrometers is also increasing. Therefore, The requirements for biological shielding walls are also increasing. [0003] Neutron scattering spectrometers usually use neutron conduits to guide neutrons into the conduit hall, and then set up multiple spectrometers on each conduit bundle. A large number of stray neutrons and gamma rays are usually produced during neutron scattering experiments using neutron scattering spectrometers. Ef...

Claims

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Application Information

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IPC IPC(8): G21F1/12
CPCG21F1/125
Inventor 刘娟娟张红霞程鹏汪晋辰徐大业鲍威李君峰沈文玮
Owner RENMIN UNIVERSITY OF CHINA
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