Determination of mass attenuation coefficient, effective atomic number and effective electron density for tungsten alloys

2014 ◽  
Vol 8 (3) ◽  
pp. 238 ◽  
Author(s):  
Borhan Tellili ◽  
Youssef Elmahroug ◽  
Chedly Souga
Keyword(s):  
Electron Density ◽  
Attenuation Coefficient ◽  
Atomic Number ◽  
Effective Atomic Number ◽  
Mass Attenuation Coefficient ◽  
Effective Electron ◽  
Tungsten Alloys ◽  
Mass Attenuation

scholarly journals Measurement of Total Electronic Cross-Section, Total Atomic Cross-Section, Effective Atomic Numbers, Effective Electron Densities and Kerma for Some Br Compounds

2021 ◽  
Vol 2 (1) ◽  
pp. 024-029
Author(s):  
Tekerek Saniye ◽  
Küçükönder Adnan
Keyword(s):  
Electron Density ◽  
Attenuation Coefficient ◽  
Cross Section ◽  
Atomic Number ◽  
Gamma Ray ◽  
Effective Atomic Number ◽  
Mass Attenuation Coefficient ◽  
Transmission Method ◽  
Effective Electron ◽  
Mass Attenuation

The aim of this study is to calculate the experimental and theoretical the mass attenuation coefficient some Br compounds by using transmission method. Also using these values were determined the total electronic section, total atomic section, effective atomic number, effective electron density and Kerma. We performed the calculations of these values in attenuation by using direct excitation experimental geometry. The total attenuation cross sections of some halogene Br compounds were measured in a narrow beam good geometry using a high resolution Si(Li) detector in the energy with γ photons at 59.543 keV from Am-241 annular source. Theoretical mass attenuation coefficient values were computed from the XCOM data programme, based on mixture rule method. This study provide new insight into the literature since the values of effective atomic number, electron density and Kerma for some Br compounds have not been determined before. According to the results shown in mass attenuation coefficient, Zeff and Neff of Br compounds are closely associated with chemical structure. This research were undertaken to explore how Bromine compounds is gamma ray shielding material.

scholarly journals DETERMINATION OF RADIOLOGICAL PARAMETERS OF SOME ACTIVE PHARMACEUTICAL INGREDIENTS USING WINXCOM SOFTWARE IN THE ENERGY RANGE 1KEV TO 100KEV

2021 ◽  
Vol 5 (5) ◽  
pp. 54-62
Author(s):  
Arome Aruwa ◽  
Philibus Musa Gyuk ◽  
Columbus Tobechukwu Eze ◽  
Suleiman Isah ◽  
Achor Mathias Ogwo ◽  
...  
Keyword(s):  
Energy Range ◽  
Electron Density ◽  
Attenuation Coefficient ◽  
Atomic Number ◽  
Diclofenac Sodium ◽  
Effective Atomic Number ◽  
Mass Attenuation Coefficient ◽  
Active Pharmaceutical Ingredients ◽  
Pharmaceutical Ingredients ◽  
Mass Attenuation

The effective atomic number, electron density and mass attenuation coefficient of some selected active pharmaceutical ingredients such as Diclofenac Sodium, Femotidine, Alprazolam, Amiodar, Amiodarone, Ciprofloxacin, and Nimesulide have been calculated over the energy range from 1 keV to 100 GeV for total and partial photon interactions by using WinXCom. The obtained data shows that the change in mass attenuation coefficient and electron density varies with energy and chemical composition of the active pharmaceutical ingredients (API’s) in drugs. The results in the variation of photon interaction with energy and effective atomic number of the API’s in drug are shown in the logarithmic graphs.

Study Total Atomic Cross-Sections, Effective Atomic Numbers, and Electron Densities for Palmitic Acid by Using Sources of Gamma Ray

2021 ◽  
Vol 19 (9) ◽  
pp. 152-158
Author(s):  
Mohammed Yahya Hadi ◽  
Ali Adil Turki Aldalawi ◽  
Karar Mahdi Talib
Keyword(s):  
Palmitic Acid ◽  
Attenuation Coefficient ◽  
Atomic Number ◽  
Gamma Ray ◽  
Effective Atomic Number ◽  
Mass Attenuation Coefficient ◽  
Electron Densities ◽  
Effective Electron ◽  
Total Electron ◽  
Mass Attenuation

The effective atomic number (Z effective), total atomic cross-section (б Total) electron density (N effective) have been Measured depending on the mass attenuation coefficient (μ/ρ). By using Gamma-ray radiation (γ), emitted from sources (57𝐶𝑜, 133𝐵𝑎, 22𝑁𝑎, 137𝐶𝑠, 54𝑀𝑛, 𝑎𝑛𝑑 60𝐶𝑜) with energies from (0.122, 0.356,0.511,0.662,0.84,1.17,1.275 𝑎𝑛𝑑 1.33𝑀𝑒𝑉) respectively. using the Sodium Iodide Scintillation Detectors NaI(Tl) at 662 keV and resolution about 8.2% have been measured the mass attenuation coefficients for the sample “Palmitic acid” it’s chemical formula C16H32O2. The data from the mass attenuation coefficient were then employed to study Z effective, N effective, and б total of the sample. In the presence of gamma-ray energy, it was discovered that the effective atomic number and effective electron densities first drop and they tend to remain nearly constant. The experimental values obtained by Z effective and N effective were in excellent agreement with the theoretical values. The theoretical data that is accessible is obtained from XCom, which is available online. The study's findings aid in understanding how (μ/ρ) values change when Zeff and Neff values vary in the case of H, C, and O based biological molecules such as fatty acids.

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