基于LIBS技术的核废料去污效果检测研究  

Study on Decontamination Effect of Nuclear Waste Based on LIBS Technology

作　　者：黄茂 钱自然 何亚雄 温起帆 柯川 HUANG Mao;QIAN Ziran;HE Yaxiong;WEN Qifan;KE Chuan(College of Physical Science and Technology,Southwest Jiaotong University,Sichuan Chengdu 610031;School of Electrical Engineering,Southwest Jiaotong University,Sichuan Chengdu 610031,China)

机构地区：[1]西南交通大学物理科学与技术学院,四川成都610031 [2]西南交通大学电气工程学院,四川成都610031

出　　处：《广州化工》2025年第6期122-126,共5页GuangZhou Chemical Industry

摘　　要：为探究LIBS技术对废包壳去污效果表征可行性,使用Ce(NO_(3))_(3),NaOH在锆合金表面制得放射性模拟物质CeO_(2)。在进行超声波,电化学,超声波与电化学联合三种方法的去污实验后,采用传统的失重法、XRD、SEM、EDS分析方法以及LIBS技术对去污效果进行表征。失重结果显示联合去污后模拟样品表面污秽剩余量最少;XRD测试结果表明联合去污后Ce的特征晶面衍射峰基本消失;SEM-EDS测试结果发现联合去污后样品表面放射性模拟元素含量最低。选择模拟元素特征峰Ce I 569.92 nm,Ce I 604.54 nm进行LIBS分析,测试结果与传统方法一致,均表明联合去污效果最佳。证明了LIBS技术在去污检测方面有着巨大的应用潜力。To investigate the feasibility of characterizing the decontamination effect of LIBS technology on waste cladding,CeO_(2),a radioactive simulant,was deposited on the surface of zirconium alloys using Ce(NO_(3))_(3) and NaOH.After decontamination experiments involving three methods(ultrasonic,electrochemical and combined ultrasonicelectrochemical),the decontamination effect was characterized via the conventional loss-in-weight method,XRD,SEM,EDS and LIBS technique.Weight loss data indicated that the simulated sample retained the least residual fouling after combined decontamination.XRD results showed that the characteristic crystal diffraction peak of Ce essentially disappeared post-combined decontamination.SEM-EDS analysis revealed the lowest content of radioactive simulant elements on the sample surface following combined treatment.For LIBS analysis,the simulated elemental characteristic peaks Ce I 569.92 nm and Ce I 604.54 nm were selected.The results aligned with those from conventional methods,confirming that combined decontamination was the most effective.This study demonstrated the significant potential of LIBS technology for decontamination detection applications.

关 键 词：激光诱导击穿光谱技术 元素分析 锆合金 去污 

分 类 号：O433[机械工程—光学工程]