2018 Volume 30 Issue 4 Pages 103-106
In Rokkasho-village, Aomori-prefecture, Japan, where a spent nuclear fuel reprocessing plant situated as a core part of nuclear fuel cycle has been developed, Institute for Environmental Sciences (IES), mainly conducting researches on impact of the plant on the environment and the public, has been established since 1990. IES developed unique experimental facilities named “Closed Ecology Experiment Facilities (CEEF)” from 1994 to 1999. This article outlined the CEEF and habitation experiments conducted using the facilities from 2005 to 2007, and problems that occurred during the course of the experiments. CEEF was renamed “Ecology Experiment Facilities (EEF)” in 2016. At present, a part of the EEF, “Plant Experiment Facility (PEF)” is used for obtaining experimental data necessary to modelling transfer of a radiocarbon, 14C discharged from the reprocessing plant to crops. The PEF is used for exposure of experimental plants to 13CO2 in place of 14CO2 and growing the plants under controlled environment.
