Development of laser remote analysis by combination of LIBS and ablation initiated resonance absorption spectroscopy for nuclear fuel materials

Wakaida, Ikuo  ; Akaoka, Katsuaki ; Miyabe, Masabumi   ; Oba, Masaki ; Maruyama, Yoichiro; Otobe, Haruyoshi  ; Niki, Hideaki*

Basic study on remote analysis by combination of LIBS and Ablation Initiated Resonance Absorption Spectroscopy (AIRAS) were performed to apply for a rapid and on-site analysis of next generation nuclear fuel materials contained with miner actinides. For the impurity measurement, detection linearity to % order and the sensitivity of order 100ppm were obtained by LIBS in the sample of the matrix of lanthanide or uranium oxide. For the isotope analysis, the laser system specialized for the resonance spectroscopy by frequency stabilized semiconductor tunable lasers had been developed, and U in natural uranium oxide was clearly detected. These results suggest that the combination of LIBS and AIRAS will be one of the alternative techniques applicable to the safeguards analysis for next generation fuels without using of He gas neutron detector.