scholarly journals Investigation of mass attenuation coefficients, effective atomic numbers, and effective electron density for some molecules: study on chemotherapy drugs

2020 ◽  
pp. 1-7
Author(s):  
Taylan Tuğrul
Keyword(s):  
Electron Density ◽  
Attenuation Coefficients ◽  
Effective Electron ◽  
Chemotherapy Drugs ◽  
Mass Attenuation Coefficients ◽  
Effective Atomic Numbers ◽  
Mass Attenuation

Determination of effective atomic numbers and electron densities for some synthesized triazoles from the measured total mass attenuation coefficients at different energies

2019 ◽  
Vol 97 (1) ◽  
pp. 86-92 ◽  
Author(s):  
F. Akman ◽  
I.H. Geçibesler ◽  
I. Demirkol ◽  
A. Çetin
Keyword(s):  
Total Mass ◽  
Effective Atomic Number ◽  
Electron Densities ◽  
Atom Number ◽  
Attenuation Coefficients ◽  
Effective Electron ◽  
Mass Attenuation Coefficients ◽  
Effective Atomic Numbers ◽  
Theoretical Results ◽  
Mass Attenuation

The effective atomic numbers and electron densities of some synthesized triazoles were determined using the experimental values of total mass attenuation coefficients at 13.93, 17.77, 26.34, and 59.54 keV photon energies. The measurements were performed in a transmission geometry that consists of a Si(Li) detector, an 241Am point source and a target. The measured results were compared with two different theoretical results. The measured results are generally consistent with the theoretical results. It is observed that the measured parameters depend on the photon energy, weighted contributions of the individual atoms within the triazoles, atom number in the triazoles, and chemical composition of triazoles. Also, the effective electron density increases linearly with increasing effective atomic number.

Effective Atomic Numbers and Electron Densities of BaO-Na2O-B2O3-SiO2 Glass System: Theoretical Calculation

2016 ◽  
Vol 675-676 ◽  
pp. 331-334
Author(s):  
N.W. Sangwaranatee ◽  
Narong Sangwaranatee ◽  
S. Sarachai ◽  
Suparat Tuscharoen ◽  
Jakrapong Kaewkhao
Keyword(s):  
Theoretical Calculation ◽  
Glass System ◽  
Electron Densities ◽  
Attenuation Coefficients ◽  
Effective Electron ◽  
Result Show ◽  
Mass Attenuation Coefficients ◽  
Effective Atomic Numbers ◽  
Glass Matrices ◽  
Mass Attenuation

In this work, the mass attenuation coefficients, the effective atomic numbers and the effective electron densities of BaO-Na2O-B2O3-SiO2 glass have been studied at 662 keV using WinXCom program. The result show that the mass attenuation coefficients increased with increasing of BaO concentration, reflecting that more photon is attenuated. The effective atomic numbers and the effective electron densities are similar trend with mass attenuation coefficients, reflecting that more virtual electron when higher BaO concentration and more interaction will be occurred in glass matrices.

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.

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