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Home > Archives > Volume 19, No 8 (2021) > Article

DOI: 10.14704/nq.2021.19.8.NQ21114

Manufacture of Shielding for Attenuation Ionization Ray by the Preparation of Nano Gadolinium Oxide with PMMA

Amjed Mohammed Shreef and Nura Anwer Abdulzahara


In this research, the coefficient of linear absorption, Half-value layer and Effective atomic number of the composite material for gamma ray of gadolinium oxide with PMMA (Gd2O3- PMMA) for shields made with varying concentrations (10%, 20%, 30%, 40%) and varied thicknesses The impact of raising the shield thickness when the concentration of each thickness is increased. The gamma ray radiation source was Cs-137and Co-60 which have (activity 10 μci and energy of 0.662 MeV, activity 1μci and energies 1.173 -1.332 (MeV) were used in measurement, As an electrical system, a scinatelaion detector (NaI (Tl)) was utilized with a (2x2)" for ORTEC software program (Scintivision-Buffer) with an integrated measurement system. The results reveal that when the concentration of nano particle-gadolinium oxides raised and the thickness of the produced layer increased, the attenuation coefficient and effective atomic number values increased of the prepared composite However, as the concentration and thickness of the composite increased, the Half-value layer values dropped.


Manufacture of Shielding, Nano Gadolinium, Half Value Layer (HVL).

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