Laser remote analysis for next generation nuclear fuel, 1; Summary of results and future scope

Wakaida, Ikuo  ; Akaoka, Katsuaki ; Oba, Masaki ; Maruyama, Yoichiro; Miyabe, Masabumi   ; Otobe, Haruyoshi  ; Kato, Masaaki; Oba, Hironori  ; Niki, Hideaki*; Ikeda, Yuji*; Sakka, Tetsuo*

Laser remote analysis for next generation nuclear fuel has been studied by combination of laser induced breakdown spectroscopy (LIBS) for elemental analysis and resonance absorption spectroscopy for isotope analysis. For elemental analysis in Uranium oxide, detection limit of 100 ppm (Ca, etc.) or 300 ppm (Lanthanide) and detection linearity up to several 10% are performed. For higher sensitivity, emission intensity by double pulse LIBS will be realized several ten times higher than that of conventional LIBS. The performance on isotopic measurement of the detection limit of 300 ppm success to detect U in natural uranium is summarized. And the new program of "Development of laser remote analysis for next generation nuclear fuel and applied study by MOX sample" will be introduced and temporal results will be described.