Cleaning of large area by excimer laser ablation

摘要

Surface removal technologies are being challenged from environmental and economic perspectives. This paper is concern with laser ablation applied to large surface cleaning with an automatized excimer laser unit. The study focuses on metallic surfaces that are oxidized and are representative of contaminated surfaces with radionuclides in a context of nuclear power plant maintenance. The whole system is described : laser, beam delivery, particle collection cell, real time control of cleaning processes. Results concerning surface laser interaction and substrate modifications are presented.