[2B16-21] Decommissioning of Fukushima Daiichi NPP 4

[2B20] Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval

(1)Program Overview

*Tadafumi Koyama¹, Koichi Uozumi¹, Kinya Nakamura¹, Taizo Kanai¹, Kenta Inagaki¹, Daisuke Yamauchi², Muneyuki Nakada³, Masaki Yoda⁴, Takeshi Yokoyama⁵, Keiji Iwata⁶ (1. CRIEPI, 2. TEPCO, 3. HITACHI-GE, 4. Toshiba-ESS, 5. MHI, 6. IHI)

Keywords:fuel debris retrieval, Airborne Release Fraction, disk cutter, chisel, laser

The program to assess dust dispersion data during cutting the fuel debris with disk-cutter, chisel, core boring and laser is overviewed.