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Study on the shielding materials for low-energy gamma sources

Photon dosimetry is indispensable in designing an irradiation facilities shielding. Monte Carlo simulation was utilized to investigate the efficiency of relatively new developed clay and Gadolinum (Gd)-doped polymer as a radiation shielding material for low energy gamma sources (Am- and Co-). The...

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Main Authors: Aminordin Sabri, A.H., Abdul Aziz, M.Z., Olukotun, S.F., Tabbakh, F., Tajudin, S.M.
Format: Conference or Workshop Item
Language:English
Published: 2020
Subjects:
GE Environmental Sciences
Q Science (General)
Online Access:http://eprints.unisza.edu.my/1928/1/FH03-FSK-20-39344.pdf
http://eprints.unisza.edu.my/1928/
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spelling my-unisza-ir.19282020-11-24T06:56:34Z http://eprints.unisza.edu.my/1928/ Study on the shielding materials for low-energy gamma sources Aminordin Sabri, A.H. Abdul Aziz, M.Z. Olukotun, S.F. Tabbakh, F. Tajudin, S.M. GE Environmental Sciences Q Science (General) Photon dosimetry is indispensable in designing an irradiation facilities shielding. Monte Carlo simulation was utilized to investigate the efficiency of relatively new developed clay and Gadolinum (Gd)-doped polymer as a radiation shielding material for low energy gamma sources (Am- and Co-). The calculated linear attenuation coefficient () of Am- and Co- for clay is higher within . % and . % compared to ordinary concrete, respectively. The value for Gd-doped polymer is higher by a factor of and compared to clay for Am- and Co-, respectively. A thickness of cm and cm from both clay and concrete were adequate to attenuate almost % incident photons from Am- and Co-, respectively. The same thickness of cm by Gd-doped polymer could attenuate almost % of Co- photons. cm thickness of clay and concrete could shield the gamma source dose rate of Am- ( MBq) down to . Sv/hr, while almost cm needed for Co- source. Gd-doped polymer with thickness of cm could shield almost % the dose rate from Co- source. For higher energy gamma sources, clay and ordinary concrete need to be doped with a higher Z element to ensure safety of the radiation. 2020 Conference or Workshop Item NonPeerReviewed text en http://eprints.unisza.edu.my/1928/1/FH03-FSK-20-39344.pdf Aminordin Sabri, A.H. and Abdul Aziz, M.Z. and Olukotun, S.F. and Tabbakh, F. and Tajudin, S.M. (2020) Study on the shielding materials for low-energy gamma sources. In: International Nuclear Science Technology and Engineering Conference 2019, iNuSTEC 2019, 29-31 Oct 2019, UKM, Bangi.
institution Universiti Sultan Zainal Abidin
building UNISZA Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sultan Zainal Abidin
content_source UNISZA Institutional Repository
url_provider https://eprints.unisza.edu.my/
language English
topic GE Environmental Sciences
Q Science (General)
spellingShingle GE Environmental Sciences
Q Science (General)
Aminordin Sabri, A.H.
Abdul Aziz, M.Z.
Olukotun, S.F.
Tabbakh, F.
Tajudin, S.M.
Study on the shielding materials for low-energy gamma sources
description Photon dosimetry is indispensable in designing an irradiation facilities shielding. Monte Carlo simulation was utilized to investigate the efficiency of relatively new developed clay and Gadolinum (Gd)-doped polymer as a radiation shielding material for low energy gamma sources (Am- and Co-). The calculated linear attenuation coefficient () of Am- and Co- for clay is higher within . % and . % compared to ordinary concrete, respectively. The value for Gd-doped polymer is higher by a factor of and compared to clay for Am- and Co-, respectively. A thickness of cm and cm from both clay and concrete were adequate to attenuate almost % incident photons from Am- and Co-, respectively. The same thickness of cm by Gd-doped polymer could attenuate almost % of Co- photons. cm thickness of clay and concrete could shield the gamma source dose rate of Am- ( MBq) down to . Sv/hr, while almost cm needed for Co- source. Gd-doped polymer with thickness of cm could shield almost % the dose rate from Co- source. For higher energy gamma sources, clay and ordinary concrete need to be doped with a higher Z element to ensure safety of the radiation.
format Conference or Workshop Item
author Aminordin Sabri, A.H.
Abdul Aziz, M.Z.
Olukotun, S.F.
Tabbakh, F.
Tajudin, S.M.
author_facet Aminordin Sabri, A.H.
Abdul Aziz, M.Z.
Olukotun, S.F.
Tabbakh, F.
Tajudin, S.M.
author_sort Aminordin Sabri, A.H.
title Study on the shielding materials for low-energy gamma sources
title_short Study on the shielding materials for low-energy gamma sources
title_full Study on the shielding materials for low-energy gamma sources
title_fullStr Study on the shielding materials for low-energy gamma sources
title_full_unstemmed Study on the shielding materials for low-energy gamma sources
title_sort study on the shielding materials for low-energy gamma sources
publishDate 2020
url http://eprints.unisza.edu.my/1928/1/FH03-FSK-20-39344.pdf
http://eprints.unisza.edu.my/1928/
_version_ 1684657774264320000
score 13.211869

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