지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.9
- 수록면
- 3,051 - 3,057 (7page)
- DOI
- https://doi.org/10.1016/j.net.2021.04.001
이용수
초록· 키워드
오류제보하기
The concrete is considered as an important radiation shielding material employed widely in nuclearreactors, particle accelerators, laboratory hot cells and other different radiation sources. The presentresearch is dedicated to the shielding properties study of the ordinary concrete reinforced with differentweight fractions of lead oxide micro/nano particles. Lead oxide particles were fabricated by chemicalsynthesis method and their properties including the average size, morphological structure, functionalgroups and thermal properties were characterized by XRD, FESEM-EDS, FTIR and TGA analysis. Thegamma ray mass attenuation coefficient of concrete composites has been calculated and measured bymeans of the Monte Carlo simulation and experimental methods. The simulation process was based onthe use of MCNP Monte Carlo code where the mass attenuation coefficient (m/r) has been calculated as afunction of different particle sizes and filler weight fractions. The simulation results showed that theemployment of the lead oxide filler particles enhances the mass attenuation coefficient of the ordinaryconcrete, drastically. On the other hand, there are approximately no differences between micro and nanosized particles. The mass attenuation coefficient was increased by increasing the weight fraction ofnanoparticles. However, a semi-saturation effect was observed at concentrations more than 10 wt%. Theexperimental process was based on the fabrication of concrete slabs filled by different weight fractions ofnano lead oxide particles. The mass attenuation coefficients of these slabs were determined at differentgamma ray energies using 22Na, 137Cs and 60Co sources and NaI (Tl) scintillation detector. The experimentalresults showed that the HVL parameter of the ordinary concrete reinforced with 5 wt% of nanoPbO particles was reduced by 64% at 511 keV and 48% at 1332 keV. Reasonable agreement was obtainedbetween simulation and experimental results and showed that the employment of nano PbO particles ismore efficient at low gamma energies up to 1Mev. The proposed concrete is less toxic and could beprepared in block form instead of toxic lead blocks.
목차
등록된 정보가 없습니다.
참고문헌 (8)
참고문헌 신청
N. Z. Noor Azman / 2013 / Effect of particle size, filler loadings and x-ray tube voltage on the transmitted x-ray transmission in tungsten oxide-epoxy composites / Appl. Radiat. Isot 71(1):62~67
K. Yue / 2009 / A new lead-free radiation shielding material for radiotherapy / Radiat. Protect. Dosim 133(4):256~260
A. El-Sayed Abdo / 2002 / Calculation of the cross-sections for fast neutrons and gamma-rays in concrete shields / Ann. Nucl. Energy 29(16):1977~1988
Meysam Alipour / 2019 / Investigation on Concrete Neutron Shielding Properties Filled by B4C, CdO, and BN Microparticles / Moscow University Physics Bulletin 74(6):608~613
T. A. Almeida Junior / 2017 / Mass attenuation coefficients of X-rays in different barite concrete used in radiation protection as shielding against ionizing radiation / Radiat. Phys. Chem 140(453):349~354
K. Yue / 2009 / A new lead-free radiation shielding material for radiotherapy / Radiat. Protect. Dosim 133(4):256~260
A. El-Sayed Abdo / 2002 / Calculation of the cross-sections for fast neutrons and gamma-rays in concrete shields / Ann. Nucl. Energy 29(16):1977~1988
Meysam Alipour / 2019 / Investigation on Concrete Neutron Shielding Properties Filled by B4C, CdO, and BN Microparticles / Moscow University Physics Bulletin 74(6):608~613
T. A. Almeida Junior / 2017 / Mass attenuation coefficients of X-rays in different barite concrete used in radiation protection as shielding against ionizing radiation / Radiat. Phys. Chem 140(453):349~354
함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Improving the brittle behavior of high-strength shielding concrete blended with lead oxide, bismuth oxide, and tungsten oxide nanoparticles against gamma ray
Structural Engineering and Mechanics, An Int＇l Journal
2023 .01
-
X-ray and gamma ray shielding behavior of concrete blocks
Nuclear Engineering and Technology
2020 .08
-
Comparison of nano/micro lead, bismuth and tungsten on the gamma shielding properties of the flexible composites against photon in wide energy range (40 keV ? 662 keV)
Nuclear Engineering and Technology
2021 .12
-
Extensive analysis of several Indian and Yemeni soils' gamma-ray shielding characteristics: An experimental and simulation approach
Nuclear Engineering and Technology
2024 .09
-
CT 방법을 이용한 질량감쇠계수 결정 및 자체감쇠 보정
방사선산업학회지
2018 .01
-
The effect of zinc, iron and manganese content on gamma shielding properties of magnesium-based alloys produced using the powder metallurgy
Nuclear Engineering and Technology
2024 .09
-
Gamma-ray Exposure Rate Monitoring by Energy Spectra of NaI(Tl) Scintillation detectors
방사선방어학회지
2017 .01
-
Studies on structural, optical, thermal and low energy shielding for gamma rays for the ZSBP glasses
Nuclear Engineering and Technology
2024 .09
-
Bentonite based ceramic materials from a perspective of gamma-ray shielding: Preparation, characterization and performance evaluation
Nuclear Engineering and Technology
2021 .05
-
Micro gadolinium oxide dispersed flexible composites developed for the shielding of thermal neutron/gamma rays
Nuclear Engineering and Technology
2023 .05
-
Experimental examination on physical and radiation shielding features of boro-silicate glasses doped with varying amounts of BaO
Nuclear Engineering and Technology
2024 .08
-
A survey on the application of oxide nanoparticles for improving concrete processing
Advances in concrete construction
2015 .01
-
A closer look at the structure and gamma-ray shielding properties of newly designed boro -tellurite glasses reinforced by bismuth (III) oxide
Nuclear Engineering and Technology
2023 .05
-
Structural performance of recycled aggregates concrete sourced from low strength concrete
Structural Engineering and Mechanics, An Int＇l Journal
2019 .01
-
Background reduction by Cu/Pb shielding and efficiency study of NaI(TI) detector
Nuclear Engineering and Technology
2018 .01
-
Development of a flexible composite based on vulcanized silicon casting with bismuth oxide and characterization of its radiation shielding effectiveness in diagnostic X-ray energy range and medium gamma-ray energies
Nuclear Engineering and Technology
2024 .07
-
Enhancement and optimization of gamma radiation shielding by doped nano HgO into nanoscale bentonite
Nuclear Engineering and Technology
2022 .06
-
Physical and γ-ray shielding properties of Vietnam's natural stones: An extensive experimental and theoretical study
Nuclear Engineering and Technology
2024 .05
-
Mechanical properties and radiation shielding performance in concrete with electric arc furnace oxidizing slag aggregate
Journal of Ceramic Processing Research
2019 .01
-
A Copper Shield for the Reduction of X-γ True Coincidence Summing in Gamma-ray Spectrometry
방사선방어학회지
2018 .01
이 논문의 저자 정보
최근 본 자료
댓글(0)
0