核电用压电加速度传感器的抗辐照屏蔽设计  

Radiation Shielding Design of Piezoelectric Accelerometer for Nuclear Power

作　　者：钱俊江 袁宇鹏[1,2] 陈清华 周睿 张萍 张祖伟 母江东 QIAN Junjiang;YUAN Yupeng;CHEN Qinghua;ZHOU Rui;ZHANG Ping;ZHANG Zuwei;MU Jiangdong(Chongqing Acoustic-Optic-Electronic Co. Ltd, China Electronics Technology Group, Chongqing 401332, China;The 26th Institute of China Electronics Technology Group Corporation, Chongqing 400060, China;Military Representative Office of Military Representative Bureau in Chongqing Military Commission Equipment Development Department, Chongqing 400060, China;Military Representative Office of Chemical Defense in Chongqing, Chongqing 400060, China;Yunnan Radio Co. Ltd., Kunming 650223, China)

机构地区：[1]中电科技集团重庆声光电有限公司,重庆401332 [2]中国电子科技集团公司第二十六研究所,重庆400060 [3]军委装备发展部军事代表局驻重庆地区军事代表室,重庆400060 [4]防化军代局驻重庆地区防化军代室,重庆400060 [5]云南无线电有限公司,云南昆明650223

出　　处：《压电与声光》2020年第4期540-543,549,共5页Piezoelectrics & Acoustooptics

基　　金：国家重点研发计划基金资助项目(2017YFF0105400)。

摘　　要：为了开展核电用压电加速度传感器的抗辐照屏蔽设计研究,该文采用蒙特卡罗粒子输运软件(MCNP),针对反应堆运行时释放的裂变中子谱和γ谱,考虑服役温度、抗辐照性能、造价、屏蔽效果等因素,提出了铅-聚乙烯-铅多层组合和Fe+W+B4C复合材料等两种屏蔽方式。结果表明,当服役时间相对较短、屏蔽体受到辐射剂量不强、服役温度小于聚乙烯(PE)材料的服役温度时,可以考虑采用Pb(10 cm)+PE(15 cm)+Pb(5 cm)的组合方式。当屏蔽体受到的辐射剂量很强、服役温度很高时,可以考虑采用60%Fe+30%W+10%B4C(质量分数)复合材料这种组合。In order to study the radiation shielding design of piezoelectric acceleration sensor for nuclear power,the Monte Carlo N-Particle Transport Code(MCNP)software is used in this paper,aiming at the fission neutron spectrum and gamma spectrum released during the operation of the reactor.Two shielding modes are proposed,which are lead polyethylene lead multilayer combination and Fe+W+B4C composite,while considering the service temperature,radiation resistance,cost,shielding effect and other factors.The results show that the combination of Pb(10 cm)+PE(15 cm)+Pb(5 cm)can be used when the service time is relatively short,the radiation dose of the shield is not strong,and the service temperature is less than the service temperature of PE.The combination of 60%Fe+30%W+10%B4C can be considered when both of the radiation dose to the shield and the service temperature are very high.

关 键 词：加速度传感器 核辐射 振动测量 γ射线 蒙特卡罗粒子输运软件(MCNP) 

分 类 号：TN384[电子电信—物理电子学] TM22[一般工业技术—材料科学与工程]