| 用D-T中子发射器检测煤炭含H量的改进 |
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| 引用本文： | 程道文,兰民,谷德山. 用D-T中子发射器检测煤炭含H量的改进[J]. 东北师大学报(自然科学版), 2012, 0(1): 84-87 |
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| 作者姓名： | 程道文 兰民 谷德山 |
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| 作者单位： | 长春工业大学基础科学学院;东北师范大学物理学院 |
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| 基金项目： | 吉林省科技发展计划项目(20050323) |
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| 摘 要： | 以D-T中子发生器为中子源分析煤炭中含H量时,煤炭内的热中子通量不是一个常数,含H量与其特征γ射线总计数间不再是线性关系.MCNP程序模拟结果显示,含H量三次方与其特征γ射线计数呈线性关系.用此关系计算含H量,测量结果的绝对误差小于0.25%,达到了煤炭工业应用的要求.
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| 关 键 词： | NIPGA D-T中子发生器 含H量 特征γ射线 非线性 |
Improvement of the determination of hydrogen content in coal by D-T neutron generator |
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| CHENG Dao-wen,LAN Min,GU De-shan. Improvement of the determination of hydrogen content in coal by D-T neutron generator[J]. Journal of Northeast Normal University (Natural Science Edition), 2012, 0(1): 84-87 |
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| Authors: | CHENG Dao-wen LAN Min GU De-shan |
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| Affiliation: | 1.School of Basic Sciences,Changchun University of Technology,Changchun 130012,China; 2.School of Physics,Northeast Normal University,Changchun 130024,China) |
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| Abstract: | A D-T neutron generator is used as a neutron source to measure the hydrogen content in coal,the thermal neutron flux cannot be regarded as a constant value.The relationship between the production of the hydrogen characteristic gamma rays(N) and its content(G) is nonlinear.The results of MCNP simulation had shown that the relationship between the third power of N and G is linear.The absolute error of hydrogen calculated by that equation was less than 0.25%,which attained the requirement of coal industry. |
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| Keywords: | NIPGA D-T neutron generator hydrogen content characteristic gamma rays nonlinear |
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