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Study of the Buildup Factor of Gamma Ray of Polymer And Nanoparticle-Tungsten Oxide Composite For Shielding Application |
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PP: 47-52 |
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doi:10.18576/jrna/030106
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Author(s) |
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Kareem K. Mohammad,
Alaa J. Ghazai,
Amjed Mohammed Shareef,
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Abstract |
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| In this research, the buildup factor for gamma ray of Polymer And Nanoparticle-Tungsten Oxide Composite form (epoxy)- as a base material with nano-tungsten oxide (WO3) powder as (reinforcement materials) for shields prepared with different concentrations (10%,20%,30%,40%) as reinforcement materials with different thickness ranged 1 to 5 cm has been studied the effect of increasing the concentration of (WO3) .As well as the effect of increasing the thickness of the shield used with increasing the concentration of each thickness . The radiation source of gamma ray was Cs-137 which have (activity 9.49 µci and energy of 662 Kev) were used in measurement , the Sodium iodide doped thallium detector NaI(Tl) was used with (2"x2") for ORTEC program (Scintivision-Buffer) with an integrated measuring system have been used as electronic system . The results show that the buildup factor values decreased with the increased of concentration of nano particle-tungsten oxides and increased with increased the thickness of the prepared composite.
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