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Spectrum analysis of LIBS using the least-square method

Akaoka, Katsuaki ; Oba, Masaki ; Miyabe, Masabumi   ; Wakaida, Ikuo  

For quantitative analysis using Laser Induced Breakdown Spectroscopy, many efforts for identification and analysis of the spectrum are required. The nuclear-fuel debris from the accident at the TEPCO's Fukushima Daiichi NPS is mainly composed of nuclear fuel (uranium (U) and plutonium (Pu)), actinides, fission products, and cladding tubes (zirconium (Zr)). Concrete (calcium), stainless steel (iron, nickel, and chrome) in the structural materials, and the like may also be included in debris. We analyzed the LIBS spectrum using "spectrum analysis using the least-squares method" as technique not to need high specialty identification of the complicated spectrum analysis.

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