https://doi.org/10.1140/epjp/s13360-024-05766-z
Regular Article
Investigation of coherent and incoherent scattering of 662 keV gamma photons from aluminum oxide (Al2O3) nanoparticles and microparticles
1
Department of Physics, University of Guilan, University Campus 2, Rasht, Iran
2
Department of Physics, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
3
Department of Physics, Faculty of Science, University of Guilan, P.O. Box 1914, Rasht, Iran
b
zolfagharpour@uma.ac.ir
c
ghasemi@guilan.ac.ir
Received:
15
June
2024
Accepted:
22
October
2024
Published online:
3
November
2024
In this research, coherent and incoherent scattering of 662 keV gamma photons from aluminum oxide microparticles (Al2O3) and its nanoparticles with a size of 20 nm was investigated. Nano and micro aluminum oxide powder samples were placed inside cylindrical containers with a base diameter of 5 cm and a height of 15 cm, which were made of thin talc material. The spectrum of backscattered photons (scattered at an angle of 180°) from reflectors containing microparticles and nanoparticles powder was recorded by a 3in × 3in NaI(Tl) scintillation detector with a multichannel analyzer (MCA). The analysis and comparison of the obtained spectra showed that the coherent cross-sectional scattering in nanoparticles is more than in microparticles, and the incoherent cross-sectional scattering in nanoparticles is less than in microparticles, also the effective mass of the electron in aluminum oxide nanoparticles was obtained 0.4 of the rest mass of the electron.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
