[2A01-05] Debris and Oxide 1

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)

[2A01] Analysis of fuel debris obtained from inside the pedestal of Unit 2 of Fukushima Daiichi Nuclear Power Station(14)Distribution evaluation of crystalline phases and uranium chemical states in fuel debris using synchrotron radiation

*Masaaki Kobata¹, Tohru Kobayashi¹, Hajime Tanida¹, Yoshihiro Okamoto¹, Tatsuo Fukuda¹, Toru Kitagaki¹, Shingo Suzuki¹, Koji Maeda¹, Masato Mizokami², Shinya Mizokami² (1. JAEA, 2. TEPCO HD)

Keywords:

Fukushima Daiichi Nuclear Power Station,Fuel debris,Synchrotron radiation,Chemical state,Crystal structure

Synchrotron radiation was used to analyze crystalline phases and uranium chemical states in fuel debris and to evaluate their distributions. As a result, the analysis clarified the existence of distinct structural and chemical states.