摘要
为减小探采矿实际生产中钻孔固化对中子探测产生的影响,提高铀矿定量的精度。利用MC对不同套管材料以及不同套管厚度进行数值模拟,通过分析超热中子与热中子计数率变化关系,研究了铀矿定量的超热中子与热中子的比值E/T修正方法。实验结果证明,在一定的套管厚度范围内,可利用线性函数对超热中子与热中子的比值进行修正。
In order to reduce the impact of drilling solidification on neutron detection in the actual production of prospecting and mining,and to improve the accuracy of uranium quantification,numerical simulation of different casing materials and different casing thicknesses was carried out by using MC.By analyzing the count rate changes relationship between epithermal neutrons and thermal neutrons,the correction method of E/T(epithermal neutron count to thermal neutron count)was studied that is used for uranium quantitative.Experimental results prove that the ratio of epithermal neutrons to thermal neutrons can be corrected by a linear function within a certain range of casing thickness.
作者
宋非
刘志锋
罗建彪
张焱
SONG Fei;LIU Zhi-feng;LUO Jian-biao;ZHANG Yan(Jiangxi Engineering Technology Center of Nuclear Geoscience Data Science and System,East China University of Technology,Nanchang 330013,China;East China University of Technology of Information Engineering,Nanchang 330013,China;Engineering Research Center for Nuclear Technology Application,Ministry of Education,East China University of Technology,Nanchang 330013,China)
出处
《核电子学与探测技术》
CAS
北大核心
2020年第6期927-931,共5页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金(11765001)
江西省核地学数据科学与系统工程技术研究中心基金(JETRC-NGDSS201804)
核技术应用教育部工程研究中心开放基金(HJSJYB2014-5)资助。
关键词
铀矿
中子测井
蒙特卡罗模拟
套管修正
Uranium Mine
Neutron Logging
Monte Carlo Simulation
Case Correction
