[3B05-08] Deburis 6

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[3B05] Analysis of fuel debris obtained from inside the pedestal of Unit 2 of Fukushima Daiichi Nuclear Power Station(5) Characterization of isotope ratios of nuclides and microstructure in fuel debris by SIMS and TEM

*Takeru Yoshida¹, Asahi Nitta¹, Takash Onishi¹, Yoshihiro Sekio¹, Koji Maeda¹, Hirotomo Ikeuchi¹, Masato Mizokami², Shinya Mizokami² (1. JAEA, 2. TEPCO HD)

Keywords:

Fukushima Daiichi Nuclear Power Station accident,Fuel debris,Solid analysis,Isotope ratio,Crystal structure

The elemental distribution of several pieces of fuel debris was obtained by scanning electron microscopy combined with wavelength dispersive X-ray spectroscopy. We also evaluated the microscopic isotope ratios of nuclides in fuel debris and their crystal structures by secondary ion mass spectrometry and transmission electron microscopy.