Assessment of the applicability of AWJ technique for dismantling the reactor of Fugen; Cutting tests for recycled abrasive and development for cutting monitoring technique

Maruyama, Shinichiro*; Tezuka, Shinichi*; Ogane, Daisuke*

The advanced thermal reactor at the Fugen Nuclear Power Station is characterized by its tube-cluster construction. As a part of the study of dismantling, we are considering the abrasive water jet (AWJ) technique that could be used for the dismantlement techniques of double tubes (pressure tube and calandria tude) as one of possible methods. As a part of tests t, we confirmed the possibility of abrasive recycle for cutting and the applicability of cutting monitoring technique for reducing the volume of secondary wastes and developing the cutting monitoring technique in the water.