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| | | Article Name : | | | Comparative Study of Gamma Radiation Shielding
Parameters for Different Oxide Glasses | | Author Name : | | | AMAL A. EL- SAWY1
A. M. MADBOULY | | Publisher : | | | Bridge Center | | Article URL : |  | | | Abstract : | | | The goal of this work was investigated materials that can be
used as good gamma shielding materials. In this paper a comparative
study of the barium bismuth and barium lead borosilicate glass
samples as radiation shielding parameters and optical properties was
presented. Bismuth oxide glasses are very useful for developing as
lead-free, high density and radio shielding glasses. The eleven
cylindrical geometries barium bismuth and barium lead borosilicate
glass samples have been prepared in different percentages and
investigate for radiation shielding properties of gamma rays from,
137Cs and 60Co radioactive point sources. All glass samples have been
prepared by melt-quenching method. The mass attenuation coefficients
(?m) for all glass samples are measured experimentally and also
calculated theoretically by WinXCom program and Monte Carlo Model
MCNP-5. The mean free path (mfp), effective atomic numbers (Zeff) and
the effective electron densities (Neff) have been determined for all glass
samples at different photon energies. Theoretical optical basicity (?th)
of the glasses and the % of heaviness with lead normalized to 100% for
all glasses samples shielding materials have been calculated. The
obtained results show that the experimental values of the glass samples
are found to be in a good agreement with the theoretical values. From
the results it has been observed that the values of ?m, mfp, Zeff, Neff, ?th
and % of heaviness for all PbO and Bi2O3 studied glasses samples at the same concentration are approximately equal. So, Bi2O3 and BaO
glass will open new possibility for a lead-free radiation protecting
glass with non-toxicity to our environment. | | Keywords : | | | Oxide glasses, gamma radiation shielding, attenuation
coefficients, XCOM Program, MCNP-5 code. |
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