Installation of iron-water shield and calandria of the prototype advanced thermal reactor Fugen

The processes of installation of the carandria and iron-water shield of the prototype advanced thermal reactor are described. The carandria consists of a carandria tank and carandria tubes. The shield consists of carbon steel slabs and water layers. The carandria and the shield were set at the center of the reactor building, and surrounded by concrete walls for biological shield. Transport of the carandria tank and the iron-water shield into the concrete shield was made through a temporary opening. The procedures of installation are explained. After the installation had been finished, the pressure test was performed with air and helium. (Kako, T.)