高功率电子加速器装置性能评价及其消毒效果  

Performance evaluation and disinfection effect of high-power electron accelerators

作　　者：刘燕琴 黄邦斗 沙斯烁 覃怀莉 宋碧莹 周佳 任哲 邵涛[2,4] Liu Yanqin;Huang Bangdou;Sha Sishuo;Qin Huaili;Song Biying;Zhou Jia;Ren Zhe;Shao Tao(Nuctech Technology Co.,Ltd.,Beijing 100085,China;Beijing International S&T Cooperation Base for Plasma Science and Energy Conversion,Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;PLA Center for Disease Control and Prevention,Beijing 100071,China;University of Chinese Academy of Sciences,Beijing 100049,China;Tongwei Xinda Technology(Beijing)Co.,Ltd.,Beijing 100085,China;China Medical University,Shenyang 110122,China)

机构地区：[1]同方威视技术股份有限公司,北京100085 [2]等离子体科学和能源转化北京市国际科技合作基地、中国科学院电工研究所,北京100190 [3]解放军疾病预防控制中心,北京100071 [4]中国科学院大学,北京市100049 [5]同威信达技术(北京)股份有限公司,北京100085 [6]中国医科大学,沈阳110122

出　　处：《强激光与粒子束》2025年第4期113-120,共8页High Power Laser and Particle Beams

基　　金：国家重点研发计划项目(2023YFC2604600)。

摘　　要：为考察高功率电子加速器是否达到设计指标性能和消毒效果,利用标准规定的方法和程序对高功率电子加速器的性能进行了测试和评价,探究了该电子加速器输出电子束对金黄色葡萄球菌、大肠埃希氏菌、短小芽孢杆菌和新型冠状病毒等微生物的灭活效果,同时考察了不同材质负载对于杀灭效果的影响。该电子加速器可以输出能量10.27 MeV、功率25 kW的高能电子束,束流扫描不均匀度为4.1%,并且对于模拟材料具有一定的穿透能力;电子束对金黄色葡萄球菌、大肠埃希氏菌、短小芽孢杆菌等微生物的消毒效果均能达到3个对数值及以上,并且穿透一定厚度负载材料后对金黄色葡萄球菌、大肠埃希氏菌、短小芽孢杆菌及枯草杆菌黑色变种芽孢的消毒效果均能达到杀灭3个对数值及以上。设计的电子加速器性能指标达标,同时具备一定的穿透能力,对研究微生物的消毒效果达标。To observe whether the high-power electron accelerator achieves the design index performance and disinfection effect,the performance of the high-power electron accelerator using the methods and procedures specified in the standard was tested and evaluated,and the inactivation effect of the electron beam output from the electron accelerator on microorganisms such as Staphylococcus aureus,Escherichia coli,Bacillus cereus,coronavirus,was explored.At the same time,examined how different material loads affected the inactivation efficiency.The highpower electron accelerator,can output a high-energy electron beam with an energy of 10.27 MeV and a power of25 kW and it was found to have a certain level of penetration capability for surrogate materials.The electron beam achieves a disinfection effect of 3 log reductions or higher against microorganisms such as Staphylococcus aureus,Escherichia coli,Bacillus cereus,and coronaviruses.After penetrating a certain thickness of load material,the electron beam can still achieve a disinfection effect of 3 log reductions or higher against Staphylococcus aureus,Escherichia coli,Bacillus cereus,and Bacillus subtilis(black variant)spores.The designed electron accelerator meets the performance specifications and has a certain level of penetration capacity,effectively achieving the required disinfection effect against the studied microorganisms.

关 键 词：电子加速器 辐照 消毒 微生物 生物安全性 

分 类 号：TL5[核科学技术—核技术及应用] Q691[生物学—生物物理学]