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ISSN : 1738-1894(Print)
ISSN : 2288-5471(Online)
ISSN : 2288-5471(Online)
Laser Ablation에 의한 고방사성시편의 미세영역 시료채취 장치개발
Micro Sampling System for Highly Radioactive Specimen by Laser Ablation
Abstract
Shielded laser ablation system composed of laser system, image analyser, XYZ translator with motion controller, ablation chamber, manipulator and various optics was designed. Nd:YAG laser which can be tunable from 1064 nm to 266 m was selected as light source. CCD camera(< 200) was chosen to analyze a crater less than 50 un in diameter. XYZ translator was composed of three linear stage which can travel 50 w with a minimum movement of 1 um and motion controller. Before the performance test, each part of system was optically aligned. To perform the ablation test, the specimen was ablated by 50 um interval and observed by image analyser The shape of crater was almost round, indicating laser beam has homogeneous energy distribution. The resolution and magnification of image system were compatible with the design.
micro sampling, laser ablation, highly radioactive specimen, nuclear fuel, 미세영역 시료채취, 레이저, 고방사성시편, 핵연료
Reference
JNFCWT
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Korean Radioactive
Waste Society (KRS)
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