| 中子活化分析中煤样厚度及探测器位置的选择 |
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| 引用本文： | 王二永,马玉刚,龚亚林,张伟,李建,马赛,马纯辉,陆景彬.中子活化分析中煤样厚度及探测器位置的选择[J].吉林大学学报(理学版),2015,53(5):1031-1033. |
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| 作者姓名： | 王二永 马玉刚 龚亚林 张伟 李建 马赛 马纯辉 陆景彬 |
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| 作者单位： | 1. 吉林大学 物理学院, 长春 130012； 2. 丹东东方测控技术股份有限公司, 辽宁 丹东 118002 |
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| 摘 要： | 利用MCNP5程序包模拟14MeV脉冲中子照射一定厚度煤样,并通过时间控制获得非弹γ能谱和俘获γ能谱,再利用计数率的高低确定γ能谱的获取位置.结果表明:当煤样厚度为20cm时,非弹γ能谱的计数率达到饱和;当煤样厚度为35cm时,俘获γ能谱的计数率达到饱和.
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| 关 键 词： | 中子感生瞬发&gamma 射线分析方法 俘获 煤样厚度 &gamma 能谱 |
| 收稿时间： | 2015-01-26 |
Selection of Coal Thickness and Detector Position in Neutron Activation Analysis |
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| WANG Eryong,MA Yugang,GONG Yalin,ZHANG Wei,LI Jian,MA Sai,MA Chunhui,LU Jingbin.Selection of Coal Thickness and Detector Position in Neutron Activation Analysis[J].Journal of Jilin University: Sci Ed,2015,53(5):1031-1033. |
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| Authors: | WANG Eryong MA Yugang GONG Yalin ZHANG Wei LI Jian MA Sai MA Chunhui LU Jingbin |
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| Institution: | 1. College of Physics, Jilin University, Changchun 130012, China;2. Dandong Dongfang Measurement ＆ Control Co. LTD, Dandong 118002, Liaoning Province, China |
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| Abstract: | Fourteen MeV pulsed neutron irradiated coal sample of certainthickness was simulated with the aid of MCNP5 package. Inelastic and capture γspectra were acquired by controlling the tally time. Collection location of γ spectra is determined by count rates. Trends of inelastic and capture γ spectra of coal samples with different thickness were observed. |
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| Keywords: | prompt gamma neutron activation analysis (PGNAA） capture coal sample thickness &gamma spectra |
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