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西安脉冲堆中子照相屏蔽体改建设计计算

Designing Calculation for Shield Rebuilding of Neutron Radiography at Xi’an Pulsed Reactor

    摘要
  • 摘要: 文章采用蒙特卡罗程序耦合抽样技巧，对西安脉冲堆中子照相孔道外的屏蔽体进行改建设计计算，确定了中子照相孔道口出射束流参数和多种材料组合的屏蔽参数。实验测试结果表明，理论计算可靠，达到了改建指标。

     

    Abstract: Coupling sampling skill used in Monte-Carlo code MCNP/4B was applied in rebuilding design of the shield of neutron radiography at Xi’an pulsed reactor in order to calculate the radiation field parameter of the experiment bore and the shield thickness of multimaterial shield. The tests show that the reliability of calculation results satisfies the rebuilding requirements.

     

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