修正快中子通量以提高碳氧测量精度的研究  

Study on modifying neutron fluxes to improve the measurement accuracy of carbon and oxygen

作　　者：程道文[1] 兰民[1] 李鑫[2] 

机构地区：[1]长春工业大学基础科学学院,吉林长春130012 [2]长春工业大学应用技术学院,吉林长春130012

出　　处：《东北师大学报（自然科学版）》2015年第3期96-99,共4页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(11305019;11205069);吉林省教育厅"十二五"科学技术研究项目(2015102)

摘　　要：用MCNP-4C程序模拟了30个煤炭样品,并找出快中子通量与元素含量间的关系.利用文献方法计算出元素含量,并以此含量修正快中子通量,修正后可以提高元素的测量精度,提高精度后的元素含量反过来可以修正中子通量.结果表明,经过多次修正后,测量精度得到较大的提高,能够达到煤炭工业应用的要求.Thirty coal samples were simulated by MCNP-4C code. The relationship between the fast neutron flux and the contents was discovered by multiple linear regressions analysis. The contents were calculated by other formulas and used to modify the fast neutron flux. Then, the measurement accuracy can be increased by the fast neutron flux which was modified and the fast neutron flux can be modified by the contents whose measurement accuracies were raised. The measurement accuracy can be greatly enhanced by several times modify,which can meet the requirement of the coal industry.

关 键 词：D-T中子发生器 快中子通量 MCNP-4C 煤质 

分 类 号：O571.53[理学—粒子物理与原子核物理]