Remote sample taking techniques from a large metallic radwaste

In order to investigate the inventory of a certain radioactive materials, taking samples from mother materials is usually required. In this paper our study results of several sample taking techniques are introduced, which techniques could be applied in dismantling field of nuclear reactors for radwaste inventory evaluation. Several kinds of sample taking techniques from a bulky, metallic, and highly radioactive radwaste were studied. In that case the proper sample taking method seems to be the wedge sampling or the chips sampling. They are relatively easy to take samples and relatively low heat affection to the samples. These studies are expected to be applied in the field of decontamination and dismantling of nuclear reactors or any highly radioactive heavy metallic objects