Review

  • Journal of Nuclear Fuel Cycle and Waste Technology
  • Volume 3(1); 2005
  • Article

Journal of Nuclear Fuel Cycle and Waste Technology 2005;3(1):309-313. Published online: Mar, 30, 2005

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Micro Sampling System for Highly Radioactive Specimen by Laser Ablation

  • Sun Ho Han ; Yeong Keong Ha ; Ki Chul Han ; Yang Soon Park ; Kwang Yong Jee and Won Ho Kim
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 ㎚ to 266 ㎚ was selected as light source. CCD camera(< x 200) was chosen to analyze a crater less than 50 ㎛ in diameter. XYZ translator was composed of three linear stage which can travel 50 ㎚ with a minimum movement of 1 ㎛ 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 ㎛ 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.

Keywords

micro sampling,laser ablation,highly radioactive specimen,nuclear fuel