Application of laser based quick spectroscopy for elemental and isotope analysis of nuclear fuel materials

Wakaida, Ikuo  ; Akaoka, Katsuaki ; Miyabe, Masabumi   ; Otobe, Haruyoshi  ; Khumaeni, A.; Kato, Masaaki

Research and development of laser based quick analysis without chemical analysis and neutron measurement for next-generation Minor Actinide containing MOX fuel has been carried out, and the basic performances by using un-irradiated MOX fuel were demonstrated. The remote diagnostic technique for simultaneous analysis of element and isotope ratio by the combination of Laser Induced Breakdown Spectroscopy and Laser Ablation Resonance Absorption Spectroscopy are developed, and specialized glove box with auto and remote arraignment system had re-constructed. For elemental analysis, detection limit of thousand ppm of Pu in MOX and the relative error under 5% have been successfully obtained within 5 min. operation. For isotope analysis, U and Pu isotopes have been observed separately and quantitative analysis was applied. Detection limit of several ten ppm for specified isotope in MOX sample and quantitative error under 1% have been accomplished within 5 min. operation.