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Composite shielding material with neutron shielding effect

A technology of shielding effect and composite shielding, which is applied in shielding, reactors, nuclear engineering, etc., can solve the problems of limited shielding effect, and achieve the effect of excellent shielding effect, broad economic benefits, and good neutron shielding effect

Inactive Publication Date: 2013-07-10
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional, single shielding materials have limited shielding effect, and a large amount of shielding materials are needed to achieve the desired shielding effect

Method used

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  • Composite shielding material with neutron shielding effect
  • Composite shielding material with neutron shielding effect

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with specific embodiments.

[0013] The composite shielding material of the invention is composed of matrix material, thermal neutron absorber and processing aid. The matrix material is polyethylene, the thermal neutron absorber is boron carbide, and the processing aids are coupling agent, anti-aging agent, thermoplastic elastomer and the like. The invention is used for the shielding protection of nuclear radiation neutron fields, has good shielding performance, is economical and easy to process, can meet the requirements of nuclear radiation shielding design, and is suitable for neutron shielding in the fields of various reactors, accelerators, isotope radiation sources and the like.

[0014] In this embodiment, the polyethylene particles and the coupling agent are mixed according to the mass ratio for activation treatment to improve the compatibility between materials. After melting and mixing, boro...

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Abstract

The invention relates to a composite shielding material with a neutron shielding effect, and is applied to neutron shielding in the fields of various types of reactors, accelerators, radioactive isotope sources and the like. The composite shielding material comprises the following components in mass percentage: 91 parts of polyethylene, 6 parts of boron carbide and 3 parts of processing aid. The composite shielding material has the advantages of good shielding performance, strong radiation resistance, good mechanical properties and the like.

Description

technical field [0001] The invention relates to a composite shielding material with neutron shielding effect, which is used for neutron shielding in the fields of various reactors, accelerators, isotope radiation sources and the like. Background technique [0002] With the rapid development of industries such as nuclear power, nuclear-powered ships, irradiation processing, non-destructive testing, and radiotherapy, high-energy radiation has been widely used in many fields such as industry, medical treatment, scientific research, and military affairs. The resulting radiation safety and The issue of protection is becoming more and more important. [0003] Commonly used neutron shielding materials include water, graphite, polyethylene, concrete and other materials with low atomic number or high hydrogen content. Traditional, single shielding materials have limited shielding effect, and a large amount of shielding materials are needed to achieve the expected shielding effect. ...

Claims

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Application Information

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IPC IPC(8): G21F1/10
Inventor 吴荣俊谭冰王益元许浒李晓玲陈艳蔡涛郭智荣
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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