| Study of n-γ discrimination in low energy range(above 40 keVee) by charge comparison method with a BC501A liquid scintillation detector |
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| 引用本文： | 陈永浩,陈熙萌,张小东,雷家荣,安力,邵剑雄,郑普,王新华,朱传新,何铁,阳剑.Study of n-γ discrimination in low energy range(above 40 keVee) by charge comparison method with a BC501A liquid scintillation detector[J].中国物理 C,2014,38(3):28-32. |
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| 作者姓名： | 陈永浩 陈熙萌 张小东 雷家荣 安力 邵剑雄 郑普 王新华 朱传新 何铁 阳剑 |
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| 作者单位： | 1 School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;;2 Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China |
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| 摘 要： | A VME-based experiment system for n-y discrimination using the charge comparison method was established.A data acquisition program for controlling the programmable modules and processing data online via VME64X bus was developed through the use of Lab VIEW.The two-dimensional(2D) scatter plots of the charge in the slow component vs.the total charge from ~(241)Am-Be and ~(252)Cf neutron sources are presented.The 2D scatter plots of the energy vs.the ratio of the charge in the slow component to the total charge of the pulses are also presented.The quality of n-γ discrimination was checked by the figure-of-merit,and the results showed good performance of n-γ discrimination at the low energy range.Neutrons and γ-rays were separated above 50 keVee(electron-equivalent energy).The quality of n-γ discrimination has been improved compared with others' results at five energies(150,250,350,450,550 keVee).
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| 关 键 词： | n-γ discrimination charge comparison method VME bus BCA liquid scintillation detector low energy range |
| 收稿时间： | 2013-3-4 |
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