[1G08-11] Evaluate Technology on Decommissioning

[1G11] Research and development of lead block cutting technique for decommissioning nuclear power plants Ⅱ

*Tomohisa Gotou^1,3, Glenn Harvel², Yutaro Aoki¹, Takeyoshi Sunagawa¹ (1. FUT, 2. Ontario Tech Univ., 3. Taihei Dengyo Ltd.)

Keywords:Decommissioning, Shields, Lead, Alloys, Waste

In the decommissioning work of the nuclear plant, a large amount of lead plate used as a shielding material for radiation is generated as waste. The work of disposing of the lead plate is very difficult because it is difficult to cut using a general tool. In this study, we devised a technique that combines mechanical cutting technique and low melting point alloy.We examined the heating method of lead plate to efficiently cut the lead plate using this technique.