دورية أكاديمية
Assessment of a polymeric composite as a radiation attenuator and a restoration mortar for cracking in biological shields
| العنوان: | Assessment of a polymeric composite as a radiation attenuator and a restoration mortar for cracking in biological shields |
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| المؤلفون: | A. T. Gheith, M. A. El-Sarraf, I. E. Hasan, N. L. Helal, R. A. Rizk, Amal A. El-Sawy, A. El-Sayed Abdo |
| المصدر: | Âderna Fìzika ta Energetika, Vol 21, Iss 4, Pp 361-368 (2020) |
| بيانات النشر: | Institute for Nuclear Research, National Academy of Sciences of Ukraine, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Atomic physics. Constitution and properties of matter |
| مصطلحات موضوعية: | biological shield, composite, neutron and gamma-ray spectra, attenuation parameters, mcnp code., Atomic physics. Constitution and properties of matter, QC170-197 |
| الوصف: | This work is dedicated to figuring out robust epoxy/magnetite/boron carbide (EP/Mag/B4C) composite for radiation attenuation at multiple applications related to nuclear installations, as well as restoration mortar for cracking developed in concrete biological shields. The mechanical properties (flexural, compressive, and impact strengths) and the physical properties (water absorption, porosity, and dry bulk density), each, have been performed to label the composite integrity for practical application. In practice, attenuation properties have been performed by using a collimated beam emitted from spontaneous fission 252Cf (100 μg) neutron source and neutron gamma spectrometer with stilbene scintillator. The pulse shape discrimination technique which would come of the zero cross over method was used to measure the fast neutron and gamma-ray spectra. Thermal neutron fluxes have been measured by using the thermal neutron detection system and the BF-3 detector. The attenuation parameters: precisely, macroscopic effective removal cross-sections ΣR (cm-1), macroscopic cross-sections Σ (cm-1), and total attenuation coefficients μ (cm-1) of fast and thermal neutrons and total gamma-rays respectively were evaluated using the attenuation relations. Also, the MCNP5 code and MERCSF-N program have been used to compute the parameters theoretically. When applicable, measured and calculated results were compared, and it tells us a comprehensive agreement. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Russian Ukrainian |
| تدمد: | 1818-331X 2074-0565 |
| العلاقة: | http://jnpae.kinr.kiev.ua/21.4/Articles_PDF/jnpae-2020-21-0361-Gheith.pdfTest; https://doaj.org/toc/1818-331XTest; https://doaj.org/toc/2074-0565Test |
| DOI: | 10.15407/jnpae2020.04.361 |
| الوصول الحر: | https://doaj.org/article/a4fca083ac124291a2466ddaf359526cTest |
| رقم الانضمام: | edsdoj.4fca083ac124291a2466ddaf359526c |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 1818331X 20740565 |
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| DOI: | 10.15407/jnpae2020.04.361 |