Mass attenuation coefficients of composite materials by Geant4, XCOM and experimental data: comparative study

2014 ◽  
Vol 169 (9) ◽  
pp. 800-807 ◽  
Author(s):  
M.E. Medhat ◽  
V.P. Singh
Keyword(s):  
Experimental Data ◽  
Composite Materials ◽  
Comparative Study ◽  
Attenuation Coefficients ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

Comparative Study on Effective Atomic Numbers of Silicate, Borate and Phosphate Glass Matrices over 1 keV-100 GeV Energy Range

2014 ◽  
Vol 979 ◽  
pp. 405-408
Author(s):  
Keerati Kirdsiri ◽  
Narong Sangwaranatee
Keyword(s):  
Chemical Composition ◽  
Comparative Study ◽  
Energy Range ◽  
Total Mass ◽  
Mass Attenuation Coefficient ◽  
Attenuation Coefficients ◽  
Mass Attenuation Coefficients ◽  
Effective Atomic Numbers ◽  
Glass Matrices ◽  
Mass Attenuation

In this work, total mass attenuation coefficients and effective atomic numbers of a series of three host glasses with different chemical composition, 65RmOn: 10CaO : 25Na2O mol% (where RmOnare B2O3, SiO2and P2O5, respectively) have been studied as a function of photon energy. The total mass attenuation coefficient values were taken from WinXCom program, were used to evaluate the effective atomic numbers in the energy range from 1 keV to 100 GeV. The obtained results for all samples are compared and discussed.

scholarly journals A mathematical function for describing the dependence of the mass attenuation coefficient versus energy for composite materials in an energy range of 100 keV to 2 MeV

2019 ◽  
Vol 34 (1) ◽  
pp. 47-56
Author(s):  
Nguyen Anh ◽  
Lam Nhat ◽  
Ho Ngan ◽  
Hoang Tam
Keyword(s):  
Composite Materials ◽  
Attenuation Coefficient ◽  
Mass Attenuation Coefficient ◽  
Coefficient Of Determination ◽  
Mathematical Function ◽  
Attenuation Coefficients ◽  
Coefficient Versus ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

This work proposes a mathematical function for describing the dependence of mass attenuation coefficients vs. energy for composite materials in the range of 100 keV to 2 MeV. The obtained results show that the proposed function is capable of accurately describing the data with a coefficient of determination of approximately 1 for all investigated materials. Using the proposed mathematical function, the mass attenuation coefficients were interpolated and compared with the results from the Monte Carlo simulation. The results show good agreement when the simulated to interpolated mass attenuation coefficient ratios are in the range from 0.95 to 1.05. Moreover, the values of interpolated mass attenuation coefficients have also been compared with the experimental data in the previous works which indicates that most of these ratios range from 0.9 to 1.1. <br><br><font color="red"><b> This article has been corrected. Link to the correction <u><a href="http://dx.doi.org/10.2298/NTRP1902209E">10.2298/NTRP1902209E</a><u></b></font>

Electron Probe Microanalysis of Ni Silicides Using Ni-L X-Ray Lines

2016 ◽  
Vol 22 (6) ◽  
pp. 1233-1243 ◽  
Author(s):  
Xavier Llovet ◽  
Philippe T. Pinard ◽  
Erkki Heikinheimo ◽  
Seppo Louhenkilpi ◽  
Silvia Richter
Keyword(s):  
Experimental Data ◽  
Electron Probe Microanalysis ◽  
Electron Probe ◽  
Emission Spectra ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Intensity Measurements ◽  
Theoretical Predictions ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

AbstractWe report electron probe microanalysis measurements on nickel silicides, Ni5Si2, Ni2Si, Ni3Si2, and NiSi, which were done in order to investigate anomalies that affect the analysis of such materials by using the Ni L3-M4,5line (Lα). Possible sources of systematic discrepancies between experimental data and theoretical predictions of Ni L3-M4,5k-ratios are examined, and special attention is paid to dependence of the Ni L3-M4,5k-ratios on mass-attenuation coefficients and partial fluorescence yields. Self-absorption X-ray spectra and empirical mass-attenuation coefficients were obtained for the considered materials from X-ray emission spectra and relative X-ray intensity measurements, respectively. It is shown that calculatedk-ratios with empirical mass attenuation coefficients and modified partial fluorescence yields give better agreement with experimental data, except at very low accelerating voltages. Alternatively, satisfactory agreement is also achieved by using the Ni L3-M1line (Lℓ) instead of the Ni L3-M4,5line.

scholarly journals Determination of the mass attenuation coefficient for Aluminum element using (Cu,Mo) X-rays tubes

2019 ◽  
Vol 24 (1) ◽  
pp. 82
Author(s):  
Ahmad Mohamed Kheder ◽  
Muhsin Hasan Ali
Keyword(s):  
Experimental Data ◽  
Attenuation Coefficient ◽  
Cross Sections ◽  
Mass Attenuation Coefficient ◽  
X Rays ◽  
Attenuation Coefficients ◽  
X Ray ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation

In this study the value of linear  and mass  attenuation coefficients of Aluminum element (Al) were determinated by using x-ray Cu-tube of energies CuKα (8.048) KeV, CuKβ (8.906) KeV, and Mo-tube of energies MoKα (17.480) KeV and MoKβ (19.609) KeV.the voltage between the two electrodes are up to 35 KV.The measured  values are compared with other experimental data showing a general agreement within a precision of 0.2% - 0.8%. The mass attenuation cross-sections were thus derived and compared with other experimental data available on database of x-ray attenuation cross-sections. The agreement is always within ±7%.   http://dx.doi.org/10.25130/tjps.24.2019.013

A comparison study for mass attenuation coefficients of some amino acids using MCNP code

Kerntechnik ◽  
2017 ◽  
Vol 82 (3) ◽  
pp. 339-343 ◽  
Author(s):  
S. M. Vahabi ◽  
M. Bahreinipour ◽  
M. Shamsaie-Zafarghandi
Keyword(s):  
Amino Acids ◽  
Comparison Study ◽  
Mcnp Code ◽  
Attenuation Coefficients ◽  
Mass Attenuation Coefficients ◽  
Mass Attenuation
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