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Laser induced breakdown spectroscopy analysis of the uranium including calcium; Dependence of laser power (Contract research)

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

For the remote analysis of low DF TRU (Decontamination Factor Transuranic) fuel, Laser Induced Breakdown Spectroscopy (LIBS) was applied to uranium oxide including a small amount of calcium oxide (3306ppm(weight)) as a sample, and the spectrum emitted from laser-breakdown plasma was examined. The characteristics, such as spectrum intensity and plasma excitation temperature as a function of laser power, were measured using time-resolved spectroscopy. As a result, the laser power of around 5 mJ was found optimum to obtain the stable intensity and narrow line width of spectrum.

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