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 ›› 2019, Vol. 30 ›› Issue (7): 106 doi: 10.1007/s41365-019-0637-8


Mass attenuation coefficient of olive peat material for absorbing gamma ray energy

Mohammad W. Marashdeh1, Hanan Saleh2   

  1. 1Department of Physics, College of Sciences, Al Imam Mohammad Ibn Saud Islamic University (IMSIU), P.O. Box 90950, Riyadh 11623, Saudi Arabia
    2Department of Radiography, Princess Aisha Bint Al-Hussein College of Nursing & Health Sciences, Al-Hussein Bin Talal University, P.O. Box 20 Ma'an, Jordan
  • Received:2018-09-26 Revised:2018-11-23 Accepted:2018-12-22
  • Contact: Mohammad W. Marashdeh
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Mohammad W. Marashdeh, Hanan Saleh. Mass attenuation coefficient of olive peat material for absorbing gamma ray energy.Nuclear Science and Techniques, 2019, 30(7): 106     doi: 10.1007/s41365-019-0637-8

Abstract: The mass attenuation coefficients (μ/ρ) of a natural material, i.e. olive peat, were measured at photon energies of 0.059, 0.356, 0.662, 1.17, and 1.332 MeV and compared with those of concrete and Pb. The experimental samples were irradiated with 214Am, 133Ba, 137Cs, and 60Co point sources using a transmission arrangement. The olive peat samples were obtained from different areas in Jordan, namely Mafraq (sample M), Kerak (sample K), Ajloun (sample A), and Irbid (sample I), and photon energies were measured using a NaI(Tl) scintillation detector with an energy resolution of 7.6% at 662 keV. The differences in the µ/ρ of olive peat samples and the calculated µ/ρ of concrete were consistently within 0.7%. This finding indicates that olive peat can be used in radiation applications in the field of medical physics. Finally, the half-value layer (HVL) of the experimental samples was measured, and results were compared with those of concrete and Pb. Pb and concrete exhibited minimal X1/2 values due to their high density, and the HVL of olive peat revealed lower shielding effectiveness than that of concrete.

Key words: Olive peat, Attenuation coefficient, Half-value layer, Gamma ray