哈尔滨商业大学学报（自然科学版）2025，Vol.41Issue(2)：192-198,7.
面向加速器中子源的辐射安全联锁系统设计
Design of radiation safety interlocking system for accelerator neutron source
摘要
Abstract
During the operation of a neutron generator,a large number of neutrons and gamma rays were generated.To prevent people from straying into the radiation area,a personnel radiation safety interlock system based on redundant control technology was established.The main operational risks of the neutron experiment base were analyzed,and the corresponding safety monitoring and protection mechanisms were implemented.The neutron source radiation safety interlock system was designed with a distributed architecture,consisting of field sensors,an interlock controller(PLC),and a host computer.The field sensors included a clearance alarm device,a master control switch,a neutron gamma dosimeter,a face recognition device,an electromagnetic door lock,an infrared sensor,a status indicator,an LED display,a high voltage trigger,a voice/monitoring device,and an interlock control cabinet.The field sensor was controlled based on the programmable logic controller(PLC)S7-200 and LAD language,and man-machine communication was realized through Ethernet communication.The radiation safety interlock monitoring program was developed using C#language to enable real-time monitoring of the on-site accelerator and each sensor.The system judged whether the accelerator could be started or closed based on the signals to ensure personnel safety.The designed radiation safety interlock system prevented idle personnel from staying on the site before the experiment by clearing the site,cut off the neutron source beam in the event of an emergency during the experiment,and forbade personnel from entering until the radiation dose was lower than the specified limit after the experiment.This effectively guaranteed the personal safety of the staff and enabled stable and reliable operation.The stability of the radiation safety interlock system was improved by adding the guiding concept of redundancy design.After continuous field testing,the system ran stably in accordance with the expected function.关键词
中子源/实时监控/PLC/冗余控制/辐射安全联锁系统Key words
neutron source/real-time monitoring/PLC/redundant control/radiation safety interlocking system分类
计算机与自动化引用本文复制引用
梁君筱,梁立振,圣宗强,熊绪文,李帅,胡阳..面向加速器中子源的辐射安全联锁系统设计[J].哈尔滨商业大学学报（自然科学版）,2025,41(2):192-198,7.基金项目
合肥综合性国家科学中心能源研究院(安徽省能源实验室)项目(21KZS208、21KZS202) （安徽省能源实验室）
国家自然科学基金青年项目(12305200) （12305200）
