期刊名称：Journal of Environmental Hydrology (ältere Jahrgänge)
印刷版ISSN：1058-3912
电子版ISSN：1996-7918
出版年度：1999
卷号：7
出版社：IAEH
摘要：The simulation of radionuclide transport at the TRIGA reactor site was carried out to analyze the distribution of residual radionuclide concentrations around the reactor site after reactor decommissioning. The soil within the study area was sampled and its hydraulic conductivity, porosity, moisture content, and distribution coefficient were measured in the laboratory. Simulation results around the reactor site show the following: the section influenced most critically by the residual radionuclides is within 150 m of the reactor building and a stream in front of the reactor. An average flow velocity of groundwater around the TRIGA reactor site is 0.6~1.8 m/sec. The residual radionuclide concentrations are reduced to about 0.3 percent at a distance of 15 m from the reactor. The stream, located at a distance of 150~200 m, is only slightly affected by residual radionuclides.
