中子发生器辐射场中子注量率溯源装置的设计研究  

Design and study of neutron fluence rate measuring device for neutron generator radiation field

作　　者：蒋伟 邢立腾 程璨 胡尊浩 夏勋荣 JIANG Wei;XING Liteng;CHENG Can;HU Zunhao;XIA Xunrong(Jiangsu Institute of Metrology,Nanjing 210023,China)

机构地区：[1]江苏省计量科学研究院,江苏南京210023

出　　处：《工业计量》2024年第2期66-69,共4页Industrial Metrology

摘　　要：近年来随着核技术的不断发展,小型氘氘和氘氚中子发生器因中子产额高、操作安全等优点在多个领域得到应用。中子发生器的注量率溯源工作十分重要,文章基于BF_(3)长中子计数器,利用蒙特卡罗模拟软件设计了适用于中子发生器辐射场下中子注量率溯源设备的结构并根据设计结果搭建了测量装置。利用^(241)Am-Be中子源标准辐射场对仪器进行了刻度,并对氘氚中子发生器辐射场下中子注量率进行了测量分析。In recent years,with the continuous development of nuclear technology,small deuteriumdeuterium and deuterium-tritium neutron generators have been applied in many fields due to their advantages such as high neutron yield and safe operation.The traceability of neutron fluence rate of the neutron generator is very important.In this study,a neutron fluence rate measuring device was developed based on BF_(3) counters.The size of device was optimized based on Monte Carlo simulation for measuring neutron fluence rate in emitted from different neutron generator.The device was built based on simulated results,and was calibrated in the standard ^(241)Am-Be neutron source radiation field.The neutron fluence rate of a deuterium-tritium neutron generator was measured and analyzed with the developed device.

关 键 词：中子发生器 BF3计数器 辐射场 中子注量率 溯源 

分 类 号：TL816.3[核科学技术—核技术及应用]