Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2017, Vol. 28 ›› Issue (11): 157 doi: 10.1007/s41365-017-0311-y

• NUCLEAR CHEMISTRY,RADIOCHEMISTRY,RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE • Previous Articles     Next Articles

Determination of gamma-ray parameters for polyethylene glycol of different molecular weights

Ibrahim F. Al-Hamarneh 1,2  Mohammad W. Marashdeh 2  Fahad I. Almasoud 3,4  Ahmad Alkaoud 2   

  1. 1 Department of Physics, Faculty of Science, Al-Balqa Applied University, Al-Salt 19117, Jordan
    2 Department of Physics, College of Science, Al Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
    3 Nuclear Science Research Institute, King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia
    4 National Centre for Nuclear Technology (NCNT), King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia
  • Contact: Ibrahim F. Al-Hamarneh E-mail:hamarnehibrahim@gmail.com
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Ibrahim F. Al-Hamarneh, Mohammad W. Marashdeh, Fahad I. Almasoud, Ahmad Alkaoud . Determination of gamma-ray parameters for polyethylene glycol of different molecular weights.Nuclear Science and Techniques, 2017, 28(11): 157     doi: 10.1007/s41365-017-0311-y

Abstract:

Mass attenuation coefficient (μm) 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 μm 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.

Key words: Polyethylene glycol, Mass attenuation coefficient, Effective atomic number, Electron density, Kerma relative to air