基于MC模拟的中子通量分布法测量keff

DEStech Transactions on Environment, Energy and Earth Science Pub Date : 2021-03-20 DOI:10.12783/DTEEES/PEEES2020/35456

Wen Weiwei, Jinxing Cheng, Y. L. Wu, Wang Qingbo, Xianbo Chen, Lang Li, Junjie Han

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摘要

摘要本文利用MCNP程序对中子通量分布法确定有效倍增系数keff进行了数值分析。计算了四种多球系统模型的中子通量分布，并用keff拟合了每个系统的特征参数c，从而测量了多球系统的keff。并在反应器系统上进行了实验验证。实验结果表明，中子通量分布法得到的keff与实验测量结果吻合较好，表明该方法可行、可靠。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Measurement of keff with Neutron Flux Distribution Method Based on MC Simulation

Abstract. In this work, the neutron flux distribution method to determine the effective multiplication coefficient keff has been numerical analysis by MCNP program. The neutron flux distribution of four multi-sphere system models are calculated, and the characteristic parameter c of each system are fitted with keff, so as to measure the keff of multi-sphere system. And experiment based on reactor system has been carried out to prove the method. Experiment results show that the keff obtained by the neutron flux distribution method are consistent with the experimental measurement results, indicating that the method is feasible and reliable.

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DEStech Transactions on Environment, Energy and Earth Science

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