中子管束流引出模型的建立  

The establishment of neutron tube beam extraction model

作　　者：高丽锋 徐沛 王畅 乔双[1] GAO Li-feng;XU Pei;WANG Chang;QIAO Shuang(School of Physics,Northeast Normal University,Changchun 130024,China)

机构地区：[1]东北师范大学物理学院,吉林长春130024

出　　处：《东北师大学报（自然科学版）》2024年第2期94-99,共6页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家重大科学仪器设备专项项目(2013YQ040861);国家自然科学基金青年科学基金资助项目(12105040,11905028).

摘　　要：为中子管建立准确的数学模型,才能设计适合的控制算法来提升中子发生器产额的稳定性.在对中子管的储存器、离子源、加速极电压以及加速级电流进行大量的分析和测试的基础上,将中子管模型分成束流引出模型和产额输出模型的组合.利用python中sk-learn库内多元多项式回归拟合方法来建立中子管束流引出模型.并以拟合优度R 2对建立的中子管束流引出模型进行评判,发现使用二阶多元多项式的拟合优度R 2评分达到0.9879,为今后高稳定性中子发生器的研制奠定了基础.The stability of neutron generator yield can be solved by establishing accurate mathematical model for neutron tube.Based on the analysis and testing of the storage,ion source,accelerator voltage and accelerator current of the neutron tube,the neutron tube model is divided into a combination of beam extraction model and yield output model.The beam extraction model of neutron tube was established by using the multivariate polynomial regression fitting method in sk-learn library in python.It is found that the goodness-of-fit score of the two-level multivariate polynomial is 0.9879,which lays a foundation for the development of high stability neutron generator in the future.

关 键 词：中子管 线性回归拟合 多元多项式回归拟合 中子管模型 

分 类 号：O571.53[理学—粒子物理与原子核物理]