镓样品泄漏中子谱的测量与分析

韩瑞; 陈志强; 聂阳波; 田国玉; 罗飞; 孙琪; 石福栋; 张苏雅拉吐; 宋林; 张鑫; 阮锡超; 任杰

doi:10.7538/yzk.2017.youxian.0786

镓样品泄漏中子谱的测量与分析

韩瑞^1,2,
陈志强²,
聂阳波¹,
田国玉^2,3,
罗飞^2,3,
孙琪^2,3,
石福栋²,
张苏雅拉吐⁴,
宋林^2,3,
张鑫^2,3,
阮锡超¹,
任杰¹

1.
中国原子能科学研究院核物理研究所,北京102413
2.
中国科学院近代物理研究所,甘肃兰州730000
3.
中国科学院大学,北京100049
4.
内蒙古民族大学物理与电子信息学院,内蒙古通辽028000

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- 刊出日期: 2018-07-19

Measurement and Analysis of Leakage Neutron Spectrum from Gallium Sample

1.
Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
2.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China
4.
College of Physics and Electronics Information, Inner Mongolia University for the Nationalities, Tongliao 028000, China

摘要

摘要: 基于中国原子能科学研究院的中子学积分实验装置，利用BC501A液体闪烁体探测器，结合飞行时间法（TOF）测量了镓样品的泄漏中子谱。采用MCNP 4C程序进行了模拟并与实验泄漏中子谱进行了比较，对ENDF/B-Ⅶ.1、JEFF-3.2、TENDL-2015数据库中镓核中子评价数据进行了宏观基准检验分析，并与TALYS程序计算结果作对比。研究结果显示：在9 MeV以下能区，TENDL-2015库与实验结果符合很好；在弹性散射能区，JEFF-3.2和TENDL-2015库与实验结果符合较好；对于12 MeV左右的非弹性散射峰，JEFF-3.2库与实验结果符合较好，TALYS计算结果显示该部分主要来自镓核分离能级的贡献。
- 镓 ,
- 泄漏中子谱 ,
- 中子评价数据 ,
- 非弹性散射
Abstract: Based on the neutronics integral experimental setup at China Institute of Atomic Energy, the leakage neutron spectra from gallium samples were measured by time-of-flight technique with a BC501A scintillation detector. For the benchmark analysis of the neutron evaluated nuclear data of gallium, the leakage neutron spectra were simulated by MCNP 4C code with the ENDF/B-Ⅶ.1, JEFF-3.2 and TENDL-2015 evaluated nuclear data libraries and compared with experimental data and TALYS code calculated results. The results show that the measured data are well reproduced by simulation with the TENDL-2015 library below the 9 MeV. The calculation results of JEFF-3.2 and TENDL-2015 libraries give better agreement with the measured data in the elastic scattering energy region. For the inelastic scattering peak around 12 MeV, JEFF-3.2 library shows a better agreement with the measured data, and TALYS results indicate that the contribution of discrete levels is dominated contribution.
- gallium ,
- leakage neutron spectrum ,
- neutron evaluated nuclear data ,
- inelastic scattering

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参考文献(10)

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镓样品泄漏中子谱的测量与分析

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Measurement and Analysis of Leakage Neutron Spectrum from Gallium Sample

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