４．４去污去污就是将附着在设备、管道、工具或其它固体表面的放射性污染物去除掉。通常去污并不能彻底地去除全部的污染物，但能降低辐射危险并使废物经去污后成为放射性水平更低一级的废物。另一方面，去污过程将产生含有被去除污染物的二次废物。去污技术广义地可分为机械 4.4 Decontamination Decontamination is the removal of radioactive contaminants attached to equipment, pipes, tools, or other solid surfaces. Usually decontamination does not completely remove all contaminants, but it can reduce the risk of radiation and decontaminate the waste to a lower radioactive level. On the other hand, the decontamination process will produce secondary waste containing contaminants removed. Decontamination can be broadly classified as mechanical