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http://dx.doi.org/10.9720/kseg.2019.4.461

Assessment of Gamma-radiation dose Rate in the Ogcheon Lower Phyllite Area, Goesan County, Korea, Using Gamma-ray Spectrometry  

Yun, Uk (Groundwater Research Center, Korea Institute of Geoscience and Mineral Resources)
Cho, Byong-Wook (Groundwater Research Center, Korea Institute of Geoscience and Mineral Resources)
Publication Information
The Journal of Engineering Geology / v.29, no.4, 2019 , pp. 461-468 More about this Journal
Abstract
Gamma-radiation dose rates were measured at 77 points around the Ogcheon lower phyllite zone (og2) in Goesan County, Korea, using gamma-ray spectrometry. Sample K contents were in the range 1.8-8.8% (average 4.6%), highest in Kgr. The eU contents were 0.2-217.9 ppm (average 16.7 ppm), highest in og2 (median 29.6 ppm). The eTh contents were 11.9-76.5 ppm (average 29.5 ppm) and the average eTh content of Kgr was 45.4 ppm, higher than those of Ogcheon meta-sedimentary rocks (og1, og2, and og3) (26.6-30.6 ppm). Except for some high-uranium sites in og2, 40K is the main radioactive material contributing to the gamma-radiation dose in the study area. Our results indicate that the outdoor effective dose rate of the area is 0.08-1.71 mSv y-1 (average 0.28 mSv y-1), with most areas apart from three points in og2 displaying dose rates <1 mSv y-1, which is the normal natural radiation background level.
Keywords
gamma-ray spectrometry; Ogcheon lower phyllite zone; gamma-radiation dose rate; effective dose rate;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Cho, B.W., 2017, Uranium concentration in groundwater of the Goesan area, Korea, Economic and Environmental Geology, 50(5), 353-361 (in Korean with English abstract).   DOI
2 Huang, Y.J., Guo, G.Y., He, Y., Yang, L.T., Shan, Z., Chen, C.F., Shang-Guan, Z.H., 2016, A comparative study of terrestrial gamma dose rate in air measured by thermoluminescent dosimeter, portable survey meter and HPGe gamma spectrometer, Journal of Environmental Radioactivity, 164, 13-18.   DOI
3 IAEA (International Atomic Energy Agency), 2003, Radiation protection and the management of radioactive waste in the oil and gas industry, Safety Reports Series No. 34, 130p.
4 Jun, J.S., Oh, H.P., Ha, C.W., 1990, Study on the dosimetry and assessment of terrestrial radiation exposure, Journal of Radiation Protection and Research, 15(2), 87-100 (in Korean with English abstract).
5 Kavasi, N., Somlai, J., Szeiler, G., Szabo, B., Schafer, I., Kovacs, T., 2010, Estimation of effective doses to cavers based on radon measurements carried out in seven caves of the Bakony Mountains in Hungary, Radiation Measurements, 45(9), 1068-1071.   DOI
6 Kim, J.H., 1989, Geochemistry and genesis of the Guryongsan (Ogcheon) uraniferous black slate, Journal of the Korean Institute of Mining Geology, 22(1), 35-63 (in Korean with English abstract).
7 Kim, M.J., Kim, S.Y., Lee, J.I., Kim, J.L., Chang, I., Hong, D.C., 2013, Environmental gamma-ray dose rate measurement by using high sensitivity Lif:Mg,Cu,Si TLD, Radiation Measurements, 56, 248-251.   DOI
8 NIER (National Institute of Environmental Research), 2012, Study on the naturally occurring radionuclides in groundwater of high potential area, KIGAM, NIER-SP2012-373, 245p.
9 Shin, D.B., Kim, S.J., 2011, Geochemical characteristics of black slate and coaly slate from the uranium deposit in Deokpyeong area, Economic and Environmental Geology, 44(5), 373-386.   DOI
10 Siegel, M.D., Bryan, C.R., 2004, Environmental geochemistry of radioactive contamination, treatise on geochemistry, Sandia Report, Sand2003-2063, 114p.
11 UNSCEAR (The United Nations Scientific Committee on the Effects of Atomic Radiation), 1993, Sources and effects of ionizing radiation, United Nations Scientific Committee on Effects of Ionizing Radiation (UNSCEAR), United Nations, New York, 920p.
12 UNSCEAR (The United Nations Scientific Committee on the Effects of Atomic Radiation), 2000, Exposure from natural radiation, United Nations Scientific Committee on Effects of Atomic Radiation (UNSCEAR), Report to General Assembly, Annex B, United Nations, New York, 76p.
13 UNSCEAR (The United Nations Scientific Committee on the Effects of Atomic Radiation), 2008, Sources and effects of ionizing radiation, United Nations Scientific Committee on Effects of Atomic Radiation (UNSCEAR), Report to the General Assembly with Scientific Annexes, United Nations, New York, 219p.