Method and device for laser ablation of a surface coating from a wall, such as a coat of paint in a nuclear plant

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 pul...

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Bibliographische Detailangaben
Hauptverfasser:	CORMONT PHILIPPE, WODLING PASCAL, GELEOC MARIE, LASCOUTOUNA CHRISTIAN, CHAMPONNOIS FRANCOIS, HUBERT CHRISTOPHE, THRO PIERRE-YVES
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CLEANING CLEANING IN GENERAL CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DECONTAMINATION ARRANGEMENTS THEREFOR ELECTROTHERAPY HUMAN NECESSITIES HYGIENE MACHINE TOOLS MAGNETOTHERAPY MEDICAL OR VETERINARY SCIENCE METAL-WORKING NOT OTHERWISE PROVIDED FOR NUCLEAR ENGINEERING NUCLEAR PHYSICS PERFORMING OPERATIONS PHYSICS PREVENTION OF FOULING IN GENERAL PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT RADIATION THERAPY SOLDERING OR UNSOLDERING TRANSPORTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL ULTRASOUND THERAPY WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	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.