| BC501A中子探测器的能量刻度及其在聚乙烯中子学积分实验中的应用 |
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| 引用本文： | 罗飞,韩瑞,陈志强,聂阳波,石福栋,张苏雅拉吐.BC501A中子探测器的能量刻度及其在聚乙烯中子学积分实验中的应用[J].原子核物理评论,2017,34(3):586-590. |
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| 作者姓名： | 罗飞 韩瑞 陈志强 聂阳波 石福栋 张苏雅拉吐 |
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| 作者单位： | 1.中国科学技术大学核科学技术学院, 合肥 230026; |
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| 基金项目： | 国家自然科学基金资助项目（91426301，11605257）；中国科学院“西部之光”人才培养引进计划资助项目（Y725030XB0）；中国科学院战略性先导科技专项（XDA03030200） |
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| 摘 要： | 利用标准放射伽玛源（22Na，137Cs）测量了尺寸为Φ5.08 cm×2.54 cm的BC501A中子探测器的脉冲幅度谱，并利用MCNP软件进行了模拟，详细考虑了探测器的几何尺寸、材料、以及能量分辨函数，计算结果很好地再现了实验数据，精确地确定了康普顿边缘的位置，完成了BC501A中子探测器的能量刻度。并采用14.8 MeV的T（d，n）4He中子源对聚乙烯样品开展了中子学积分实验，结果表明，BC501 A中子探测器的能量刻度过程以及聚乙烯中子学积分实验数据的处理过程是完全合理并且可靠的。The pulse-height spectra of the BC501A scintillator (Φ5.08 cm×2.54 cm) were measured using 22Na, 137Cs γ-ray source, in which MCNP simulation was applied. The simulated pulse-height spectra show a good agreement with the measured data considering the geometry, material and energy resolution function of the scintillator. The position of the Compton edge has been precisely determined and an accurate energy calibration of BC501A scintillator was also achieved. An neutronics integral experiment of polythene with 14.8 MeV T(d, n)4He neutron source was carried out. The results indicate that the procedures of the energy calibration experiment of BC501A scintillator and the data analyzing in the polythene integral experiment are reasonable and reliable.
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| 关 键 词： | MCNP模拟 BC501A 能量刻度 中子探测器 |
| 收稿时间： | 2016-12-08 |
Electron Energy Calibration of BC501A Neutron Detector and Its Application in the polythene Neutronics Integral Experiment |
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| LUO Fei,HAN Rui,CHEN Zhiqiang,NIE Yangbo,SHI Fudong,ZHANG Suyalatu.Electron Energy Calibration of BC501A Neutron Detector and Its Application in the polythene Neutronics Integral Experiment[J].Nuclear Physics Review,2017,34(3):586-590. |
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| Authors: | LUO Fei HAN Rui CHEN Zhiqiang NIE Yangbo SHI Fudong ZHANG Suyalatu |
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| Institution: | 1.School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230026, China;2.Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;3.Science and Technology on Nuclear Data Laboratory, China Institute of Atomic Energy, Beijing 102413, China;4.Inner Mongolia University for the Nationalities, Tongliao 028000, Inner Mongolia, China |
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| Abstract: | The pulse-height spectra of the BC501A scintillator (Φ5.08 cm×2.54 cm) were measured using 22Na, 137Cs γ-ray source, in which MCNP simulation was applied. The simulated pulse-height spectra show a good agreement with the measured data considering the geometry, material and energy resolution function of the scintillator. The position of the Compton edge has been precisely determined and an accurate energy calibration of BC501A scintillator was also achieved. An neutronics integral experiment of polythene with 14.8 MeV T(d, n)4He neutron source was carried out. The results indicate that the procedures of the energy calibration experiment of BC501A scintillator and the data analyzing in the polythene integral experiment are reasonable and reliable. |
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| Keywords: | MCNP simulation BC501A energy calibration liquid scintillator |
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