Qualitative Analysis of the Component Materials of Nuclear Power Plant Using Time-Resolved Laser Induced Breakdown Spectroscopy

시간분해 레이저 유도 파열 분광분석에 의한 원자력발전소 계통재질의 성분 정성분석

  • Chung, Kun-Ho (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Cho, Yeong-Hyun (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Lee, Wanno (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Choi, Geun-Sik (Nuclear Environment Research Division, Korea Atomic Energy Research Institute) ;
  • Lee, Chang-Woo (Nuclear Environment Research Division, Korea Atomic Energy Research Institute)
  • 정근호 (한국원자력연구소 원자력환경연구부) ;
  • 조영현 (한국원자력연구소 원자력환경연구부) ;
  • 이완로 (한국원자력연구소 원자력환경연구부) ;
  • 최근식 (한국원자력연구소 원자력환경연구부) ;
  • 이창우 (한국원자력연구소 원자력환경연구부)
  • Received : 2004.07.02
  • Accepted : 2004.09.09
  • Published : 2004.10.25

Abstract

Time-resolved laser induced breakdown spectroscopy (TRELIBS) has been developed and applied to the qualitative analysis of the component materials of nuclear power plant. The alloy samples used in this work were carbon steels (A106 Gr. B; A336 P11; A335 P22), stainless steels (type 304; type 316) and inconel alloys (Inconel 600; Inconel 690; Inconel 800). Carbon steels can be individually distinguished by the intensity ratio of chromium to iron and molybdenum to iron emission lines observed at the wavelength raging from 485 to 575 nm. Type 316 stainless steel can be easily differentiated from type 304 by identification of the molybdenum emission lines at an emission wavelength ranging from 485 to 575 nm: type 304 does not give any molybdenum emission lines, but type 316 does. The inconel alloys can be individually distinguished by the intensity ratio of Cr/Fe and Ni/Fe emission lines at the wavelength raging from 420 to 510 nm. TRELIBS has been proved to be a powerful analytical technique for direct analysis of alloys due to its non-destructivity and simplicity.

Keywords

TRELIBS;carbon steel;stainless steel;inconel alloy;nuclear power plant

Acknowledgement

Supported by : 과학기술부

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