[1F14-19] Fuel Debris 3

[1F17] Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval

(12) Study of methodorogy to estimate Airborne Release Fraction for cutting actual fuel debris

*Tadafumi Koyama¹, Kinya Nakamura¹, Koichi Uozumi¹, Tanzo Kanai¹, Shun Kanagawa¹, Takatoshi Hijikata¹, Tetsuya Kato¹, Daisuke Yamauchi², Kazutaka Mogi², Yuichi Iwata² (1. CRIEPI, 2. TEPCO)

Keywords:fuel debris retrieval, ARF, dust, disk cutter, safety assessment

Methodology to derive ARF of actual fuel debris from experimentally obtained ARF values of simulants was studied. Derived ARF values were compared with those experimentally obtained for simulated fuel debris manufactured with thermite reaction or induction heating.