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14MeV中子防护体的设计
引用本文:贾福全,程道文.14MeV中子防护体的设计[J].吉林建筑工程学院学报,2012(6):71-73.
作者姓名:贾福全  程道文
作者单位:吉林建筑工程学院基础科学部;长春工业大学基础科学学院
基金项目:吉林建筑工程学院博士科研启动基金资助项目(861050)
摘    要:在用D—T中子发生器分析煤质时,为了设计14MeV中子防护体,本文先合理简化了实际模型,然后用MC-NP程序对其进行模拟,最后用实验结果修正模拟结果.实验和模拟结果显示,当聚乙烯厚度超过300mm时,地面的中子注量率就达到了辐射防护的要求.为了安全起见,在实际设计中用500mm的聚乙烯防护14MeV中子.

关 键 词:14MeV中子  MCNP  辐射防护  聚乙烯

The Design of 14MeV Neutron Shield
JIA Fu-quan,CHENG Dao-wen.The Design of 14MeV Neutron Shield[J].Journal of Jilin Architectural and Civil Engineering,2012(6):71-73.
Authors:JIA Fu-quan  CHENG Dao-wen
Affiliation:1:Department of Basic Sciences,Jilin Institute of Architecture and Civil Engineering,Changchun,China 130118; 2:School of Basic Sciences,Changchun University of Technology,Changchun,China 130012)
Abstract:When using D - T neutron generator analyzes coal properties, in order to design 14MeV neutron shield, this paper firstly simplifies the actual model reasonably, then uses MCNP program to simulate it. At last, it uses ex-perimental result to revise the simulated result. The experimental result and the simulated result show that the neu-tron fluence rate of ground comes up to the requirement of radiation protection when the thickness of polytene is over 300mm. On the safe side, the polytene which the thickness is 500mm is used to protect 14MeV neutron in the prac-tical design.
Keywords:14MeV neutron  MCNP  radiation protection  polytene
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