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A Study of Shielding Properties of X-ray and Gamma in Barium Compounds

  • Seenappa, L. (Department of Physics, Government College for women) ;
  • Manjunatha, H.C. (Department of Physics, Government College for women) ;
  • Chandrika, B.M. (PC Extension, St.Annes School) ;
  • Chikka, Hanumantharayappa (Vivekananda Degree College)
  • Received : 2016.06.04
  • Accepted : 2017.01.09
  • Published : 2017.03.31

Abstract

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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