| 摘要 |
PROBLEM TO BE SOLVED: To provide a decontamination method due to athermal laser peeling which establishes nearly perfect decontamination rate easily at a moderate price, where RI contained in a surface fixing membrane contaminated with RI does not infiltrate into, spread over and re-contaminate inside of the structural material in a lower layer of the surface fixing layer, while there is almost no limitation in usage environment, efficacy, applicable object, applicable location, and applicable condition. SOLUTION: In the decontaminating method to regions near the surface, at the same time when irradiating a stainless steel cold structure 1 with surface fixing layer containing RI with extremely-short pulse athermal laser 2, gas or liquid for removing is sprayed on the laser irradiated part from a fluid spraying part 3, and debris 3 of the fixing layer exfoliated and ablated by a femtosecond to picosecond extremely-short pulse athermal laser irradiation are blown away to be sucked with an exhaust pipe 4. COPYRIGHT: (C)2011,JPO&INPIT |
