Document Type : Original Article
Authors
1
Physics Department, Faculty of Science(Girls branch), Al-Azhar University, Nasr City,, Cairo, Egypt
2
Physics Department, Faculty of Science, Al-Azhar University
3
Physics Department, Faculty of Science (Girl’s branch), Al-Azhar University, Nasr City, 11884, Cairo, Egypt
4
Physics Department, Faculty of Science (Girls branch), Al-Azhar University, Nasr City, Cairo, Egypt
5
Faculty of Science,Al-Azhar University,Cairo,Egypt
10.21608/ajnsa.2024.281619.1809
Abstract
A series of Bi50Pb50-xSnx alloys, where x = 0, 16, 20, 25, and 30 wt. %, were prepared to be used as coolants and for heat transfer in fast fission and/or fusion nuclear reactors. For the prepared alloys, measurements were made of their density and melting points. Similarly, high-temperature measurements of the alloys' wetting contact angles on several substrate types were made to clarify their possible application in the design of nuclear reactors. The mass attenuation coefficients〖 μ〗_m (cm2/g) were established experimentally with energy ranges of 121.8 to 1407.24 keV. The neutron macroscopic cross sections ̩Ʃ (cm-1) and mean free path MFP (cm) of the alloys were determined experimentally using three neutron energy ranges (slow neutrons, total slow neutrons, and neutrons with energies > 0.4 eV). The results indicated that there was a substantial agreement between the theoretical calculations which were done with the aid of “WinXCom” and “Phy-X/PSD” software and the practical outcomes. The increase in Sn concentration at the expense of Pb improves the physical characteristics of (Bi-Pb-Sn) alloys, making them suitable for use as coolants in fast nuclear reactors.
Keywords
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