[3C01-04] Laser Application

[3C04] Development of a CW fiber laser decontamination using high-speed scanning of a high-power density laser beam

(2)Design and operating principle of the Galvanometer high-power density and high-speed laser scanning decontamination system

*Eisuke John Minehara¹, Atsushi Kosuge², Koichi Saruta² (1. LDD, 2. JAEA)

Keywords:Fiber laser, High power density, High speed scanning, continuous wave, Galvanometer scanner, Movie

The LDD's laser decontamination devices have decontaminated the surface of radioisotope(RI) contaminants by high-speed scanning with high-power density laser light using a galvanometer. We have already used the devices to irradiate the reactor stainless steel samples with a laser to achieve complete decontamination below the RI detection limit. In addition, many RI contaminated concrete, glass, metal, and painted surfaces have been decontaminated to obtain practical and very large decontamination factors. We will discuss the design and operating principle of the high-power density and high-speed scanning laser decontamination devices.