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  • Title: Natural radionuclides contents and radon exhalation rates in building materials used in South Korea.
    Author: Lee SC, Kim CK, Lee DM, Kang HD.
    Journal: Radiat Prot Dosimetry; 2001; 94(3):269-74. PubMed ID: 11487810.
    Abstract:
    The natural radionuclide (226Ra, 232Th and 40K) contents of building materials commonly used in South Korea have been determined by a gamma ray spectroscopy system using a high purity germanium detector. The radon exhalation rates and emanation coefficients of building materials have also been studied. The average concentrations of 226Ra, 232Th and 40K in building materials were in the range of 6.47-271 Bq.kg-1, N.D.-89.9 Bq.kg-1 and 16.8-1081 Bq.kg-1, respectively. The average radon exhalation rates and emanation coefficients were in the range of 0.0061-0.2404 Bq.kg-1.h-1 and 2.39-11.5%, respectively.
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