Field Experience with Soil Gas Mapping Using Japanese Passive Radon/Thoron Discriminative Detectors for Comparing High and Low Radiation Areas in Serbia (Balkan Region)
| Autor: | Tetsuo Ishikawa, Michael Zhukovsky, Predrag Ujić, Peter Jovanović, Francesco Bochicchio, Shinji Tokonami, R. C. Ramola, Aleksandra Onischenko, Krzysztof Kozak, Miroslaw Janik, Zora S. Žunić, Sarat Kumar Sahoo, Igor T. Čeliković, Jadwiga Mazur, Giancarlo Ciotoli, Ilia V. Yarmoshenko, Nenad Veselinovic |
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| Rok vydání: | 2009 |
| Předmět: |
Soil test
Correlation coefficient Health Toxicology and Mutagenesis chemistry.chemical_element Radon 010501 environmental sciences 01 natural sciences Sensitivity and Specificity 030218 nuclear medicine & medical imaging Radium 03 medical and health sciences 0302 clinical medicine Japan Radiation Monitoring Soil Pollutants Radioactive Radiology Nuclear Medicine and imaging 0105 earth and related environmental sciences Radiation Soil gas Radiochemistry Thorium Reproducibility of Results Equipment Design Equipment Failure Analysis chemistry Air Pollutants Radioactive Environmental chemistry Soil water Environmental science Soil Pollutants Gases Serbia Algorithms |
| Zdroj: | Journal of Radiation Research |
| Popis: | Radon/Thoron/Natural radioactivity/Niska Banja/Obrenovac. Based oil results of fieldwork in the Balkan Region of Serbia from 2005 to 2007, soil gas radon and thoron concentrations as well as gamma dose rates were measured. Campaigns were conducted in two different geological regions: Niska Banja, considered a high natural radiation area, and Obrenovac around the TentB Thermal Power Plant (TPP), a low natural radiation area. Radon and thoron gas measurements were made by using two types of Japanese passive radon/thoron detectors, Which included GPS data and gamma dose rates. The concentrations of soil radon gas in Niska Banja ranged from 1.8 to 161.1 kBq m(-3) the concentrations for soil thoron gas ranged from 0.9 to 23.5 kBq m(-3). The gamma close rates varied from 70 to 320 nGy h(-1). In the TentB area, radon concentration was found to range from 0.8 to 24.9 kBq m(-3) and thoron from 0.6 to 1.9 kBq m(-3). The gamma dose rate ranged from 90 to 130 nGy h(-1). In addition, the natural radioactivity of the soil was investigated at the low background area. The radium and thorium contents in collected soil samples ranged from 23 to 58 and 33 to 67 Bq kg(-1), respectively. As a result of correlation analyses between the measured values, the highest correlation coefficient (R GT 0.95) was found for thorium ill the soil and the thoron gas concentration. |
| Databáze: | OpenAIRE |
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