[1D17-21] Other Decommissioning Technology

[1D20] Development of Technology for Nonproliferation of B₄C Powder in Used Control Rod

(1)Study of Cutting Technology by Combination of Press Working and Underwater Plasma Fusing

*Makoto Tatemura¹, Tomohiro Endo², Masatoshi Itagaki², Yoshiki Kurosawa³, Hideki Yamai², Yutaka Kometani², Minoru Masuda² (1. Hitachi, 2. Hitach-GE, 3. Hitachi-Urban)

Keywords:Volume Reduction, Used Control Rods, B4C Powders, Underwater Plasma Fusing

In this study, for the purpose of storing used control rods in containers without diffusing of B4C powders into water, we examined the cutting technology by the combination of press working and underwater plasma fusing. It result, the method of this study confirmed that there was the nonproliferation effect of B4C powders.