Development of laser remote analysis; Basic characteristics in impurity analysis of uranium oxide by Laser Induced Breakdown Spectroscopy (LIBS), 2

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

Basic study of the quick, simple and onsite remote analysis without chemical separation is required for the analysis of Low-decontaminated TRU fuel for FBR of the next generation. LIBS will be one of the useful techniques for the remote analysis, and we are studying about the emission characteristics such as time-spatial phenomenon and laser power dependence in the uranium oxide contained with calcium impurity. The influence by the change of plasma temperature will be able to control by the selection of the emission energy level. The strength of the impurity emission is estimated by the deconvolution technique and calibration characteristic is obtained. By the comparison with the standard deviation, the detection limit of 70 ppm () in the impurity analysis of uranium oxide fuel will be determined.