[2A01-04] Decommissioning of the Reactor Facility

[2A03] Research and development of lead block cutting technique for decommissioning nuclear power plants Ⅳ

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

Keywords:Decommissioning, Shields, Lead, low melting point alloy, 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 devised a method to make the Bi-Sn alloy supplied to the lead plate into a paste in order to efficiently cut the lead plate using this method.