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Title: | Mass attenuation coefficients, effective atomic numbers and effective electron densities for some polymers |
Authors: | Işıtman, Nihat Ali Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Anabilim Dalı. 0000-0002-9193-4591 0000-0002-5708-4845 Küçük, Nil Çakır, Merve 24436223800 57197612654 |
Keywords: | Environmental sciences & ecology Public, environmental & occupational health Nuclear science & technology Radiology, nuclear medicine & medical imaging Gamma-ray attenuation Photon energy-absorption Fatty-acids Transmission experiments Amino-acids W/Cu Alloy Region Superconductor Glasses Semiconductors |
Issue Date: | Jan-2013 |
Publisher: | Oxford University |
Citation: | Küçük, N. vd. (2013). "Mass attenuation coefficients, effective atomic numbers and effective electron densities for some polymers". Radiation Protection Dosimetry, 153(1), 127-134. |
Abstract: | In this study, the total mass attenuation coefficients ((m)) for some homo- and hetero-chain polymers, namely polyamide-6 (PA-6), poly-methyl methacrylate (PMMA), low-density polyethylene (LDPE), polypropylene (PP) and polystyrene (PS) were measured at 59.5, 511, 661.6, 1173.2, 1274.5 and 1332.5 keV photon energies. The samples were separately irradiated with Am-241, Na-22, Cs-137 and Co-60 (638 kBq) radioactive gamma sources. The measurements were made by performing transmission experiments with a 2 ' 2 ' NaI(Tl) scintillation detector having an energy resolution of 7 at 662 keV gamma ray from the decay of Cs-137. The effective atomic numbers (Z(eff)) and the effective electron densities (N-eff) were determined experimentally and theoretically using the obtained (m) values for the investigated samples. Furthermore, Z(eff) and N-eff of each polymer were computed for total photon interaction cross-sections using theoretical data over a wide energy region from 1 keV to 10 MeV. The experimental values of the selected polymers were found to be in good agreement with the theoretical values. |
URI: | https://doi.org/10.1093/rpd/ncs091 https://academic.oup.com/rpd/article-abstract/153/1/127/1654594 http://hdl.handle.net/11452/28928 |
ISSN: | 0144-8420 |
Appears in Collections: | Scopus Web of Science |
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