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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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Background: Ionizing radiation is known to be harmful to human health. The shielding of ionizing radiation depends on the attenuation which can be achieved by three main rules, i.e. time, distance and absorbing material. Materials and Methods: The mass attenuation coefficient, linear attenuation coefficient, Half Value Layer (HVL) and Tenth Value Layer (TVL) of X-rays (32 keV, 74 keV) and gamma rays (662 keV) are measured in Barium compounds. Results and Discussion: The measured values agree well with the theory. The effective atomic numbers ($Z_{eff}$) and electron density (Ne) of Barium compounds have been computed in the wide energy region 1 keV to 100 GeV using an accurate database of photon-interaction cross sections and the WinXCom program. Conclusion: The mass attenuation coefficient and linear attenuation coefficient for $BaCO_3$ is higher than the $BaCl_2$, $Ba(No_3)_2$ and BaSO4. HVL, TVL and mean free path are lower for $BaCO_3$ than the $BaCl_2$, $Ba(No_3)_2$ and $BaSO_4$. Among the studied barium compounds, $BaCO_3$ is best material for x-ray and gamma shielding.
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참고문헌 (16)
참고문헌 신청
Stewart DC / 1985 / Data for radioactive waste management and nuclear applications / John Wiley and Sons :89
Chilton AB / 1984 / Principles of radiation shielding / Prentice-Hall :105
Dresner L. / 1965 / Principles of radiation protection engineering / McGraw-Hill :204
Kim SC / 2012 / Medical radiation shielding effect by composition of barium compounds / Ann. Nucl. Energy 47:1~5
Hubbell JH / 1995 / Tables of x-ray mass attenuation coefficients and mass energy-absorption coefficients 1 keV to 20 MeV for elements Z=1 to 92 and 48 additional substances of dosimetric interest :56
Chilton AB / 1984 / Principles of radiation shielding / Prentice-Hall :105
Dresner L. / 1965 / Principles of radiation protection engineering / McGraw-Hill :204
Kim SC / 2012 / Medical radiation shielding effect by composition of barium compounds / Ann. Nucl. Energy 47:1~5
Hubbell JH / 1995 / Tables of x-ray mass attenuation coefficients and mass energy-absorption coefficients 1 keV to 20 MeV for elements Z=1 to 92 and 48 additional substances of dosimetric interest :56
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