Photon Monte Carlo Transport in Radiation Protection

1988 ◽  
pp. 503-522
Author(s):  
B. Grosswendt
Keyword(s):  
Monte Carlo ◽  
Radiation Protection ◽  
Monte Carlo Transport

scholarly journals A comprehensive Monte Carlo study to design a novel multi-nanoparticle loaded nanocomposites for augmentation of attenuation coefficient in the energy range of diagnostic X-rays

2021 ◽  
Vol 27 (4) ◽  
pp. 279-289
Author(s):  
Elahe Sayyadi ◽  
Asghar Mesbahi ◽  
Reza Eghdam Zamiri ◽  
Farshad Seyyed Nejad
Keyword(s):  
Monte Carlo ◽  
Energy Range ◽  
Radiation Protection ◽  
Experimental Studies ◽  
Rubber Matrix ◽  
Photon Flux ◽  
Monte Carlo Code ◽  
X Rays ◽  
Wide Range ◽  
Shielding Properties

Abstract Introduction: The present study aimed to investigate the radiation protection properties of silicon-based composites doped with nano-sized Bi2O3, PbO, Sm2O3, Gd2O3, WO3, and IrO2 particles. Radiation shielding properties of Sm2O3 and IrO2 nanoparticles were investigated for the first time in the current study. Material and methods: The MCNPX (2.7.0) Monte Carlo code was utilized to calculate the linear attenuation coefficients of single and multi-nano structured composites over the X-ray energy range of 10–140 keV. Homogenous distribution of spherical nanoparticles with a diameter of 100 nm in a silicon rubber matrix was simulated. The narrow beam geometry was used to calculate the photon flux after attenuation by designed nanocomposites. Results: Based on results obtained for single nanoparticle composites, three combinations of different nano-sized fillers Sm2O3+WO3+Bi2O3, Gd2O3+WO3+Bi2O3, and Sm2O3+WO3+PbO were selected, and their shielding properties were estimated. In the energy range of 20-60 keV Sm2O3 and Gd2O3 nanoparticles, in 70-100 keV energy range WO3 and for photons energy higher than 90 keV, PbO and Bi2O3 nanoparticles showed higher attenuation. Despite its higher density, IrO2 had lower attenuation compared to other nanocomposites. The results showed that the nanocomposite containing Sm2O3, WO3, and Bi2O3 nanoparticles provided better shielding among the studied samples. Conclusions: All studied multi-nanoparticle nanocomposites provided optimum shielding properties and almost 8% higher attenuation relative to single nano-based composites over a wide range of photon energy used in diagnostic radiology. Application of these new composites is recommended in radiation protection. Further experimental studies are suggested to validate our findings.

Use of CAD Generated Geometry Data in Monte Carlo Transport Calculations for ITER

2009 ◽  
Vol 56 (2) ◽  
pp. 702-709 ◽  
Author(s):  
U. Fischer ◽  
H. Iida ◽  
Y. Li ◽  
M. Loughlin ◽  
S. Sato ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Transport

Data decomposition method for full-core Monte Carlo transport–burnup calculation

2018 ◽  
Vol 29 (2) ◽  
Author(s):  
Hong-Fei Liu ◽  
Peng Ge ◽  
Sheng-Peng Yu ◽  
Jing Song ◽  
Xiao-Lei Zheng
Keyword(s):  
Monte Carlo ◽  
Decomposition Method ◽  
Data Decomposition ◽  
Monte Carlo Transport ◽  
Burnup Calculation ◽  
Full Core
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