[2H03-07] Waste Treatment

11:25 AM - 11:40 AM JST(2:25 AM - 2:40 AM UTC)

[2H07] Micro XRF/XRD/XAFS analysis of radioactive particulates from Fukushima-Daiichi Nuclear Power Plant using synchrotron radiation at SPring-8

*Tohru Kobayashi¹, Hajime Tanida¹, Masaaki Kobata¹, Yoshihiro Okamoto¹, Shinichi Fujimori¹, Tetsuo Okane¹, Tsuyoshi Yaita¹, Shingo Suzuki¹, Koji Maeda¹ (1. Japan Atomic Energy Agency)

Keywords:

Fukushima-Daiichi Nuclear Power Plant,nuclear material,synchrotron radiation analysis,micro beam,XRF/XRD/XAFS

Synchrotron radiation analysis was performed on particulates containing nuclear fuel materials collected from Fukushima-Daiichi Nuclear Power Plant (1F) at JAEA beamline BL22XU of SPring-8. In this study, X-ray fluorescence analysis (XRF), X-ray diffraction (XRD) and X-ray absorption fine structure (XAFS) using synchrotron radiation X-rays focused to 1 µm size were measured for the particulates collected by investigation inside the reactors of units 1 to 3 of 1F, and elucidated element distributions, crystal structures and chemical states of the main constituent elements such as uranium, plutonium and zirconium.