Abstract
Mass attenuation coefficient (μ m) for polyethylene glycol (PEG) of different molecular weights was determined by using NaI (Tl) scintillator and WinXcom mixture rule at gamma energies of 59.5, 302.9, 356.0, 661.7, 1173.2 and 1332.5 keV. The total atomic, molecular and electronic cross sections, half-value layer, effective atomic and electron numbers, mass energy-absorption coefficients and kerma relative to air are calculated. The energy and compositional dependence of μ m values, and the related radiation absorption parameters, are evaluated and discussed. The experimental results agree well with the theoretical ones, within an uncertainty of 1% in the effective atomic number for all PEG samples at the designated energies.
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The authors also thank all members of the Nuclear Science Research Institute at the King Abdulaziz City for Science and Technology in Riyadh, Saudi Arabia, for providing the facilities to conduct the experiments.
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The authors thank the Deanship of Scientific Research at Al Imam Mohammad Ibn Saud Islamic University for the grant and financial assistance to accomplish this work.
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Al-Hamarneh, I.F., Marashdeh, M.W., Almasoud, F.I. et al. Determination of gamma-ray parameters for polyethylene glycol of different molecular weights. NUCL SCI TECH 28, 157 (2017). https://doi.org/10.1007/s41365-017-0311-y
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DOI: https://doi.org/10.1007/s41365-017-0311-y