| 摘要 |
A method for removing radioactive material fixed to a device (4), comprising the steps of immersing the contaminated device (4) in a sodium flow (13), thereby dissolving the radioactive material into the sodium flow (13), and thereafter collecting the radioactive material in a trap (7). An apparatus for carrying out above method, wherein a receptacle (1) for receiving a device (13) contaminated with radioactive material and a trap (7) for the radioactive material are disposed in a sodium-circulating system provided with a heating means (9).
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