Laser decontamination for radioactive contaminated metal surface: A review

• Published in: Nuclear engineering and technology 2023, Vol.55 (1), p.12-24
• Main Authors: Qian Wang, Feisen Wang, Chuang Cai, Hui Chen, Fei Ji, Chen Yong, Dasong Liao
• Format: Article
• Language: Korean
• ISSN: 1738-5733; 2234-358X

With the improvement of laser technology, the strategic needs of efficient and precise decontamination of various components in nuclear application units can be fulfilled by laser decontamination. The surface contaminants of nuclear facilities mainly exist both as loose contaminated layer and fixed oxide layer. The types of radionuclides and contamination layer thickness are closely related to the operation status of nuclear facilities, which have an important influence on the laser decontamination process. This study reviewed the mechanism of laser surface treatment and the influence of laser process parameters on the decontamination thickness, decontamination factor, decontamination efficiency and the distribution of aerosol particle. Although multiple studies have been performed on the mechanism of laser processing and laser decontamination process, there are few studies on the microscopic process mechanism of laser decontamination and the influence of laser decontamination on surface properties. In particular, the interaction between laser and radioactive contaminants needs more research in the future.