Method for reducing the level of radioactivity of a metal part

Details Method for reducing the level of radioactivity of a metal part Method for reducing the level of radioactivity of a metal part

G - Physics

21

F

G21F 9/00 (2006.01) G21F 9/30 (2006.01)

Patent

CA 2329814

The invention relates to a method for reducing the level of radioactivity of a metal part. To this end, an oxide layer is firstly removed from the metal part by using a decontamination solution. Afterwards, an oxidizing agent which is still present is removed from the decontamination solution. As a result, a layer of the metal is removed. The remaining metal can be delivered to a common scrap yard since radionuclides are only found in the layer of the metal part located close to the surface.

L'invention concerne un procédé permettant de supprimer la radioactivité d'une pièce métallique. Selon ledit procédé, une couche d'oxyde est enlevée de la pièce métallique à l'aide d'une solution de décontamination. Après cette opération, il est prévu qu'un agent ayant un effet oxydant, encore présent, soit enlevé de la solution de décontamination. Ensuite, une couche du métal est enlevée. Etant donné que les radionucléides ne se trouvent que dans la couche de la pièce métallique proche de la surface, le métal restant peut être conduit à un dépôt de ferraille normal.

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