Radiation Dose Due to Naturally Occurring Radionuclides in Soils from Varying Geological Environments

摘要

Field radiation monitoring and radionuclide analysis of soils were performed at various geological areas in Taiwan. The field-observed dose rate was 0.031-0.107 mu Gy h(-1). The dose rate ascribed to naturally occurring radionuclides in soils that were geologically characterized varied from 0.002 to 0.079 mu Gy h(-1). A linear correlation was observed between the activity-derived and field-observed dose, which indicated that the absorbed dose rate from the cosmic rays is almost constant (0.030 mu Gy h(-1)) throughout the flat area on the island.