[3J08-13] Analysis and Separation

[3J09] Development of Quick and Remote Analysis for Severe Accident Reactor-6

(2) Analysis of LIBS spectra using the least-square method for simulated fuel debris.

*Katsuaki Akaoka¹, Hironori Ohba^1,2, Ikuo Wakaida¹, Atsushi Ohuchi³, Fumiki Mizusako³, Yoshinori Etoh³, Tadahiko Torimaru³ (1. Japan Atomic Energy Agency, 2. National Institutes for Quantum and Radiological Science and Technology, 3. Nippon Nuclear Fuel Development Co.,Ltd.)

Keywords:fuel debris, least-square method, LIBS, laser, laser induced breakdown spectroscopy

For measurement of the fuel debris from the Fukushima Daiichi Nuclear Power Station accident, we analyzed the LIBS spectrum of the mixed simulated fuel debris of U, Zr and Fe, using the least-squares method. We present the results of the calibration curve and analysis spectrum.