METHOD AND DEVICE FOR LASER ABLATION OF A SURFACE COATING FROM A WALL, SUCH AS A COAT OF PAINT IN A NUCLEAR PLANT

摘要

The invention concerns a method for laser ablation of a surface coating from a wall, such as a painted wall finish, for example in a nuclear plant to be decontaminated, and a device for implementing said method. The inventive ablation method includes sweeping shots on the coating of at least one pulsed laser beam with a laser beam quality factor M² less than 20, and characterized in that it comprises a direct control of said shots by optical deflection, such that the impact zones (I1, I2, I3, ) of said shots on said coating are disjointed or substantially adjacent with minimized overlapping.