At present, 4 grams of plutonium have been used at the plutonium laboratory in JAERI, and in the near future 100 grams of plutonium will be coming in use. As well known, plutonium is high radiotoxic material and then more severe radiation control is demanded.
In this paper, radiation control methods at the plutonium ladboratory such as contamination control, room air monitoring, stack dust monitoring and solid and liquid wastes control are discribed.
