Calculate Effective Atomic Number, Mass and Cross-Section Attenuation Coefficients for Nonanoic Acid by Using Gamma-Ray Sources

2021 ◽  
Vol 19 (11) ◽  
pp. 15-21
Author(s):  
Ali Adil Turki Aldalawi ◽  
Mohammed Yahya Hadi ◽  
Rawaa A. Hameed
Keyword(s):  
Attenuation Coefficient ◽  
Cross Section ◽  
Atomic Number ◽  
Gamma Ray ◽  
Effective Atomic Number ◽  
Mass Attenuation Coefficient ◽  
Nonanoic Acid ◽  
Attenuation Coefficients ◽  
Effective 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 “Nonanoic acid its common name Pelargonic acid” it’s chemical formula C9H18O2. The data from the mass attenuation coefficient were then employed to study Zeffective, Neffective, and бtotal 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 Zeffective and Neffective 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.

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 Measurement of Photon Matter Interaction Parameters for some Iodine Compounds

2020 ◽  
Vol 1 (9) ◽  
pp. 421-426
Author(s):  
Adnan Küçükönder ◽  
Saniye Tekerek
Keyword(s):  
Attenuation Coefficient ◽  
Cross Section ◽  
Gamma Ray ◽  
Effective Atomic Number ◽  
Mass Attenuation Coefficient ◽  
Effective Electron ◽  
Iodine Compounds ◽  
Beam Experiment ◽  
Experimental Values ◽  
Mass Attenuation

In this study, total atomic cross-section (σta), total moleculer cross-section (σtm) total electronic cross-section (σte), effective atomic number (Zeff), effective electron density (Neff) and Kerma (K) were determined both experimentally and theoretically values for some iodine compounds. Experimental mass attenuation coefficient (µ/ρ) values for some iodine compounds were calculated with the data obtained from the test results. The theoretical mass attenuation coefficient values of these compounds were calculated with the WinXCOM data program. Also, we have performed the measurements for the calculations of experimental values mass attenuation coefficient using direct transmission experimental geometry. The transmission photon intensity of halogene iodine compounds were measured in a narrow beam experiment geometry was used 59.543 keV γ-ray from an 241Am radioactive source. The tranmissions spectra from iodine compounds were recorded with a Si (Li) detector having a resolution of 155 eV FWHM at 5.9 keV (55Fe) and coupled to a 1024 channel analyzer through a spectroscopic amplifier. This study was provided that new insights into the literature since mass attenuation coefficient experimental values of some I compounds have not been determined previously. More research should be done to observe the changes in the chemical structure of iodine compounds with gamma-ray interaction. This study will shed light on further research.

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.

Gamma and X-Ray Shielding Properties of Various Types of Steels

2019 ◽  
Vol 5 (4) ◽  
Author(s):  
H. C. Manjunatha ◽  
L. Seenappa
Keyword(s):  
Attenuation Coefficient ◽  
Atomic Number ◽  
Gamma Ray ◽  
Effective Atomic Number ◽  
Mass Attenuation Coefficient ◽  
Buildup Factor ◽  
X Ray ◽  
Steel Type ◽  
Gamma Radiations ◽  
Mass Attenuation

We have calculated the gamma and X-ray shielding parameters such as mass attenuation coefficient, half value layer (HVL), tenth value layer (TVL), specific gamma ray constant, effective atomic number, and buildup factors in various steels. By studying these X-ray and gamma interaction parameters, we have selected the best steel which can be used for the X-ray and gamma shielding material. The steel type 20Mo-4 is having higher values of mass attenuation coefficient, specific gamma ray constant, effective atomic number, and buildup factor and smaller values of HVL and TVL. A detail analysis of X-ray/gamma interaction in the different steels reveals that the steel type (S15) 20Mo-4 is good absorption of both X-ray/gamma radiations.

Theoretical Study of the Photon Interaction for Zirconium Alloy at 1 keV to 100 MeV

2016 ◽  
Vol 675-676 ◽  
pp. 730-733
Author(s):  
Chumphon Khobkham ◽  
W. Chaiphaksa ◽  
P. Limkitjaroenporn ◽  
P. Prongsamrong ◽  
P. Wiwatkanjana ◽  
...  
Keyword(s):  
Attenuation Coefficient ◽  
Total Mass ◽  
Zirconium Alloy ◽  
Gamma Ray ◽  
Mass Attenuation Coefficient ◽  
Chemical Compositions ◽  
Electron Densities ◽  
Attenuation Coefficients ◽  
Effective Atomic Numbers ◽  
Mass Attenuation

In this work, the total mass attenuation coefficient and partial interactions of the zirconium alloy have been calculated by WinXCom program at 1 keV-100 MeV gamma ray energies. Zr2(Fe,Ni) alloys was studied for the mass attenuation coefficients, photoelectric absorption, incoherent, coherent and pair production processes. The effective atomic numbers and electron densities were also calculated. The calculated results show that the total mass attenuation coefficient decreased with increasing of gamma rays energy. The value of total mass attenuation coefficient of each material was different, which depend on chemical compositions of alloy. The partials interactions, effective atomic numbers and electron densities were also calculated and discussed.

Measurement Mass Attenuation Coefficient of Palmitic Acid by Using Sources of Gamma Ray

2021 ◽  
Vol 19 (6) ◽  
pp. 107-114
Author(s):  
Mohammed Yahya Hadi ◽  
Ali Hussein F. Alnasraui ◽  
Ali Adil Turki Aldalawi
Keyword(s):  
Attenuation Coefficient ◽  
Gamma Rays ◽  
Gamma Ray ◽  
Radiation Force ◽  
Mass Attenuation Coefficient ◽  
Fluorescence Detector ◽  
Effective Electron ◽  
Effective Atomic Numbers ◽  
Gamma Ray Detector ◽  
Mass Attenuation

The purpose of this paper is to determine the mass attenuation coefficient (μ/ρ), of a sample. In this work used (C16H32O2) fatty acid, exposed to gamma rays (γ), emitted from various sources 57Co, 133Ba, 22Na, 137Cs, 54Mn, and sCo with energies from 0.122 to 1.330 MeV. It exposes the compound to gamma rays and discloses the radiation force that passes through the sample, the rest of the gamma radiation attenuated. A NaI fluorescence detector (Tl) with an accuracy of 8.2% (at 662 kV) was used for the gamma ray detector beam. An advantage of using (μ/ρ) coefficient data can be obtained effective atomic numbers, atomic cross-section and effective electron densities.

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