Monte Carlo Study of Several Concrete Shielding Materials Containing Galena and Borated Minerals
Introduction: The heavyweight concretes have been widely used for constructing medical or industrial radiation facilities with photon sources. Materials and Methods: In this study, heavy concretes containing galena (PbS) and several borated minerals are proposed as suitable materials against photons...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Mashhad University of Medical Sciences
2017-12-01
|
Series: | Iranian Journal of Medical Physics |
Subjects: | |
Online Access: | http://ijmp.mums.ac.ir/article_8723_95e1f4014a6340eecc38d31e0e17b521.pdf |
id |
doaj-aa18c5b966204ca09543bab9cac07595 |
---|---|
record_format |
Article |
spelling |
doaj-aa18c5b966204ca09543bab9cac075952020-11-24T23:52:33ZengMashhad University of Medical SciencesIranian Journal of Medical Physics2345-36722345-36722017-12-0114424125010.22038/ijmp.2017.17873.11578723Monte Carlo Study of Several Concrete Shielding Materials Containing Galena and Borated MineralsMehdi Saeedimoghadam0Banafshae Zeinali1Mehdi Kazempour2Reza Jalli3Sedigheh Sina4Medical imaging research center, Shiraz University of medical sciences, Shiraz, IranMedical imaging research center, Shiraz University of medical sciences, Shiraz, IranMSc, Department of Radiobiology, School of paramedical sciences, Shiraz University of Medical Sciences, Shiraz, Iran; Student Research Committee, School of Paramedical Sciences, Shiraz University of Medical Sciences, Shiraz, Iran;Medical imaging research center, Shiraz University of medical sciences, Shiraz, IranRadiation Research Center, Shiraz University, Shiraz, IranIntroduction: The heavyweight concretes have been widely used for constructing medical or industrial radiation facilities with photon sources. Materials and Methods: In this study, heavy concretes containing galena (PbS) and several borated minerals are proposed as suitable materials against photons. The shielding properties of 21 galena concretes containing seven borated minerals with three mixing patterns were evaluated using MCNP4C Monte Carlo code. The attenuation of the gamma radiation is computed under the conditions of narrow and beam geometries. The x-ray sources with 40, 60, 90, and 120 kVp and gamma rays of 99mTc, 131I, 137Cs, and 511 keV annihilation photons were considered. The photon flux values and the x-ray spectrum after applying all the concretes were compared to the ordinary ones. Regarding the results, more photon attenuations obtained by using high density concretes simulation in comparison to ordinary concrete. Results: The results revealed that the concretes containing orthopinokiolite as the borated material made by the third mixing pattern, had the most photon attenuation. According to the results, the shielding properties of the concretes containing different borated minerals were alike against high photon energies, whereas in low energy photons the attenuation depended on the type of borated mineral used in the concretes. Conclusion: The high-density heavy-weighted concretes could be effectively used as multi-purpose shield for radiotherapy rooms and nuclear reactors due to the borated minerals.http://ijmp.mums.ac.ir/article_8723_95e1f4014a6340eecc38d31e0e17b521.pdfPhotonMonte CarloPhoton Attenuation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mehdi Saeedimoghadam Banafshae Zeinali Mehdi Kazempour Reza Jalli Sedigheh Sina |
spellingShingle |
Mehdi Saeedimoghadam Banafshae Zeinali Mehdi Kazempour Reza Jalli Sedigheh Sina Monte Carlo Study of Several Concrete Shielding Materials Containing Galena and Borated Minerals Iranian Journal of Medical Physics Photon Monte Carlo Photon Attenuation |
author_facet |
Mehdi Saeedimoghadam Banafshae Zeinali Mehdi Kazempour Reza Jalli Sedigheh Sina |
author_sort |
Mehdi Saeedimoghadam |
title |
Monte Carlo Study of Several Concrete Shielding Materials Containing Galena and Borated Minerals |
title_short |
Monte Carlo Study of Several Concrete Shielding Materials Containing Galena and Borated Minerals |
title_full |
Monte Carlo Study of Several Concrete Shielding Materials Containing Galena and Borated Minerals |
title_fullStr |
Monte Carlo Study of Several Concrete Shielding Materials Containing Galena and Borated Minerals |
title_full_unstemmed |
Monte Carlo Study of Several Concrete Shielding Materials Containing Galena and Borated Minerals |
title_sort |
monte carlo study of several concrete shielding materials containing galena and borated minerals |
publisher |
Mashhad University of Medical Sciences |
series |
Iranian Journal of Medical Physics |
issn |
2345-3672 2345-3672 |
publishDate |
2017-12-01 |
description |
Introduction: The heavyweight concretes have been widely used for constructing medical or industrial radiation facilities with photon sources.
Materials and Methods: In this study, heavy concretes containing galena (PbS) and several borated minerals are proposed as suitable materials against photons. The shielding properties of 21 galena concretes containing seven borated minerals with three mixing patterns were evaluated using MCNP4C Monte Carlo code. The attenuation of the gamma radiation is computed under the conditions of narrow and beam geometries. The x-ray sources with 40, 60, 90, and 120 kVp and gamma rays of 99mTc, 131I, 137Cs, and 511 keV annihilation photons were considered. The photon flux values and the x-ray spectrum after applying all the concretes were compared to the ordinary ones. Regarding the results, more photon attenuations obtained by using high density concretes simulation in comparison to ordinary concrete.
Results: The results revealed that the concretes containing orthopinokiolite as the borated material made by the third mixing pattern, had the most photon attenuation. According to the results, the shielding properties of the concretes containing different borated minerals were alike against high photon energies, whereas in low energy photons the attenuation depended on the type of borated mineral used in the concretes.
Conclusion: The high-density heavy-weighted concretes could be effectively used as multi-purpose shield for radiotherapy rooms and nuclear reactors due to the borated minerals. |
topic |
Photon Monte Carlo Photon Attenuation |
url |
http://ijmp.mums.ac.ir/article_8723_95e1f4014a6340eecc38d31e0e17b521.pdf |
work_keys_str_mv |
AT mehdisaeedimoghadam montecarlostudyofseveralconcreteshieldingmaterialscontaininggalenaandboratedminerals AT banafshaezeinali montecarlostudyofseveralconcreteshieldingmaterialscontaininggalenaandboratedminerals AT mehdikazempour montecarlostudyofseveralconcreteshieldingmaterialscontaininggalenaandboratedminerals AT rezajalli montecarlostudyofseveralconcreteshieldingmaterialscontaininggalenaandboratedminerals AT sedighehsina montecarlostudyofseveralconcreteshieldingmaterialscontaininggalenaandboratedminerals |
_version_ |
1725473193371631616 |