Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2017, Vol. 28 ›› Issue (2): 20 doi: 10.1007/s41365-016-0171-x

• NUCLEAR CHEMISTRY,RADIOCHEMISTRY,RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE • Previous Articles     Next Articles

Measurement and Monte Carlo simulation of c-ray dose rate in high-exposure building materials

A. Abbasi 1,2 , M. Hassanzadeh 1   

  1. 1 Reactor Research School, Nuclear Science and Technology Institute (NSTRI), P.O. Box 141551339, Tehran, Iran
    2 University of Kyrenia, Kyrenia, North Cyprus, Mersin 10, Turkey
  • Contact: M. Hassanzadeh E-mail:m_hassanzadeh1354@yahoo.com
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A. Abbasi, M. Hassanzadeh. Measurement and Monte Carlo simulation of c-ray dose rate in high-exposure building materials.Nuclear Science and Techniques, 2017, 28(2): 20     doi: 10.1007/s41365-016-0171-x

Abstract:

Natural radioactivity radionuclides in building materials, such as 226 Ra, 232 Th and 40 K, cause indoor exposure due to their gamma-rays. In this research, in a standard dwelling room (5.0 m × 4.0 m × 2.8 m), with the floor covered by various granite stones, was set up to simulate the dose rates from the radionuclides using MCNP4C code. Using samples of granite building products in Iran, activities of the 226 Ra, 232 Th and 40 K were measured at 3.8–94.2, 6.5–172.2 and 556.9–1529.2 Bq kg −1, respectively. The simulated dose rates were 26.31–184.36 nGy h −1, while the measured dose rates were 27.70–204.17 nGy h−1. With the results in good agreement, the simulation is suitable for any kind of dwelling places.

Key words: Radioactivity, Building materials, Absorbed dose, Experimental, MCNP4C