激光去污技术在放射性管道的研究应用  

Research and Application of Laser Decontamination Technology in Radioactive Pipelines

作　　者：张惠炜 邹扬 聂继祖 张文利[1] 何小平[1] 赵滢[1] ZHANG Hui-wei;ZOU Yang;NIE Ji-zu;ZHANG Wen-li;HE Xiao-ping;ZHAO Ying(Daya Bay Nuclear Power Operations and Management Co.,Ltd,Shenzhen 518124,China;Suzhou Nuclear Power Research Institute,Suzhou 215004,China)

机构地区：[1]大亚湾核电运营管理有限责任公司,广东深圳518124 [2]苏州热工研究院有限公司,江苏苏州215004

出　　处：《光学与光电技术》2024年第3期142-148,共7页Optics & Optoelectronic Technology

摘　　要：激光去污技术由于二次废物产生量少,便于进入狭小空间工作,且去污效率高,以及易于实现自动化等特点,在金属表面深度去污和放射性热点去污等领域具有广阔的应用前景。研究了激光去污技术对管道性能的影响,并将此技术应用于核电厂放射性管道的去污,通过测量管道前后接触剂量率,结果表明,在不损伤管道的基础上,使管道内部表面接触剂量率大大降低,平均降幅可达74%左右,有效减少管道剂量,减少工作人员受照剂量,为后续放射性管道清洁解控提供了理论基础。Laser decontamination technology has broad application prospects in deep decontamination of metal surface and radioactive hot spot decontamination due to its characteristics of small amount of secondary waste generation,easy access to narrow space work,high decontamination efficiency and easy automation.The influence of laser technology on pipeline performance was studied and applied to decontamination of radioactive pipeline in nuclear power plant.The decontamination effect of laser decontamination technology on internal dose of pipeline was demonstrated by measuring the contact dose rate before and after pipeline.On the basis of not damaging the pipeline,the contact dose rate of the internal surface of the pipeline is greatly reduced,with an average reduction of about 74%,which effectively reduces the pipeline dose and reduces the exposure dose of the staff,providing a theoretical basis for the subsequent cleaning and control of the radioactive pipeline.

关 键 词：激光去污 放射性管道 接触剂量率 组织及性能评价 工程应用 

分 类 号：TN249[电子电信—物理电子学]