| ITER上窗口屏蔽中子学分析研究 |
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| 引用本文： | 郑善良,刘松林,林辉,曾勤,吴宜灿. ITER上窗口屏蔽中子学分析研究[J]. 核科学与工程, 2005, 25(4): 361-366 |
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| 作者姓名： | 郑善良 刘松林 林辉 曾勤 吴宜灿 |
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| 作者单位： | 中国科学院等离子体物理研究所,安徽,合肥,230031 |
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| 基金项目： | ITER国际工作组核分析合同任务框架下进行的(合同编号:ITA-73-01-CN,2003) |
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| 摘 要： | 利用CAD/MCNP自动建模程序MCAM建立ITER新上窗口中子学计算模型,使用中子/光子耦合输运程序MCNP/4CI、AEA聚变核数据库FENDL1.0和集成上窗口模型的ITER基本中子学模型计算并分析上窗口新的工程设计的屏蔽能力以检验设计的合理性。结果表明,与以前的上窗口设计相比,新设计的上窗口的周围剂量控制点的快中子注量率、停堆剂量率以及线圈核热等都增大了好几倍,建议进一步改进上窗口设计。
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| 关 键 词： | ITER 中子学 屏蔽 上窗口 |
| 文章编号： | 0258-0918(2005)04-0361-06 |
| 修稿时间： | 2005-07-11 |
Neutronics analysis of the upper port for ITER |
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| ZHENG Shan-liang,LIU Song-lin,LIN Hui,ZENG Qin,WU Yi-can. Neutronics analysis of the upper port for ITER[J]. Chinese Journal of Nuclear Science and Engineering, 2005, 25(4): 361-366 |
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| Authors: | ZHENG Shan-liang LIU Song-lin LIN Hui ZENG Qin WU Yi-can |
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| Abstract: | To confirm the sufficiency of shielding capability,the upper port geometry in the ITER 3-D basic model has been efficiently and reliably modified according to the updated drawings of the new design by using the home-developed CAD/MCNP interface code,i.e.MCAM.On the basis of the modified ITER 3-D model with new upper port geometry in comparison with those with the original upper port geometry,the distributions of fast neutron flux,dose rates after shutdown around the upper ports and nuclear heat in the PF-1 and PF2 have been calculated by the MCNP/4C and the relevant data library FENDL1.0.An increase of several folds in the fast neutron flux,the nuclear heat and the shutdown dose rate for the new upper port design has been observed in the calculated results for the new design.The new design needs to be improved. |
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| Keywords: | ITER neutronics shielding upper port |
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