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홍용호(Yong-Ho Hong),박수리(Su-Ri Park),한상욱(Sang-Wook Han),서창진(Chang-Jin Suh),김보현(Bo-Hyun Kim),원철종(Chul-Jong Won),김병직(Byung-Jick Kim) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
We developed a smart decontamination device for small-size radioactive scrap metal (SSRSM) arisen from nuclear facilities. We used the abrasion pin in rotating magnetic field and ultrasonic wave cleaner for solving secondary decontamination and high treatment cost problems. At first, we improved the decontamination efficiency of each device by upgrading the design. Optimal operating conditions were determined for each device. Next, we applied both techniques sequentially. Experimental results showed that the efficiency is higher than that of each device. By use of the developed device, we decontaminated the various SSRSM for 15 min magnetic abrasion and 15 min ultrasonic. Decontamination index ranges from 18 to 56. Absolute values of all decontaminated samples were below the background value.