Studies on mass attenuation coefficient, mass energy absorption coefficient, and kerma for Fe alloys at photon energies of 17.44 to 51.70 keV

Yılmaz, Demet; Şahin, Yusuf; Demir, L.

doi:10.3906/fiz-1408-4

Cited by 14 publications

(4 citation statements)

References 17 publications

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“…The deposition of energy from several gamma reaction mechanisms, like photoelectric, Compton, and cogeneration processes, is referred to as gamma-effect heating. The Kerma coefficient Ke is an interesting parameter that implies that the interaction of neutron and gamma radiation with materials produces heat [34]. It is critical in many applications, particularly fusion systems.…”

Section: Radiation Shielding Effectmentioning

confidence: 99%

Influence of low-concentrated transition metal oxide, Cu 2 O 3 , impurities on the structural units, ligand field characteristics, and shielding capacity of lead-based borovanadate glass

Gomaa,

Saudi,

Morsy

et al. 2023

Preprint

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This study focuses on the effect of low-concentrated impurities on the general characteristics of oxide glasses. In this regard, three different small amounts of Cu2O3 (0.25g, 0.5g, and 1g) have been introduced as minor impurities to the primary components of the Borovanadate lead-based glass containing Na and Ca cations. The fast quenching approach was applied in the fabrication of the desired short-range order materials, with all melt-liquids quenched in air at the same conditions, approximately. X-ray diffraction (XRD), Fourier transform infrared (FTIR), microhardness (H), and UV-visible spectroscopy were used to test and characterize the prepared materials. The morphologies of the XRD patterns, FTIR charts, and UV-vis spectra revealed that the prepared samples had a short-range order with an average lattice parameter of 5.5 Å and four different forming units; BO3, BO4, VO4, and PbO4. The bulk density, microhardness, nonbridging oxygen atoms, and optical absorption amplitude all increased as Cu2O3 concentration increased. Six modes of optical absorption have been observed in the measuring range of 190–800 nm, three of which are ascribed to charge transfer and three to optical transitions generated by V cations, taking in to account that the increase in Cu2O3 concentration had no effect on the ligand field. The mass attenuation coefficients (µm), effective atomic numbers (Zeff), and kerma coefficients (Ke) for gamma rays at different photon energies were determined by theoretical calculation. Cu2O3 additives improve all gamma-ray attenuation parameters by about 20-18.5%. The findings demonstrated lead borovanadate glass doped with a high Cu2O3 content in a variety of applications, including UV blockers and dark windows for sunlight protection, as well as the photo-thermal device protective covering applications and as a shield materials in nuclear applications.

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Section: Radiation Shielding Effectmentioning

confidence: 99%

Influence of low-concentrated transition metal oxide, Cu 2 O 3 , impurities on the structural units, ligand field characteristics, and shielding capacity of lead-based borovanadate glass

Gomaa,

Saudi,

Morsy

et al. 2023

Preprint

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“…Gamma attenuation behavior on commercial stainless steels and boron steels was observed by [2] using XCOM computer code and found that Theoretical and experimental MAC are closely related. Shield material selections based on the energy of photon and Lead is a highly shielding material with a suitable density of 11.35g/cm 3 , high atomic number, and inexpensive. Furthermore, MAC, MEAC, and kerma relative to air and kerma values differed between Fe-Ce and Fe-Ni alloys due to photoelectric cross-sections that vary with an atomic number [3].…”

Section: Introductionmentioning

confidence: 99%

“…Shield material selections based on the energy of photon and Lead is a highly shielding material with a suitable density of 11.35g/cm 3 , high atomic number, and inexpensive. Furthermore, MAC, MEAC, and kerma relative to air and kerma values differed between Fe-Ce and Fe-Ni alloys due to photoelectric cross-sections that vary with an atomic number [3]. Several composite materials assigned are d for X-ray and gamma photon interactions as shielding materials.…”

Section: Introductionmentioning

confidence: 99%

Radiation Shielding Properties of Oxides (Al2O3, PbO and Fe2O3) based on Klein-Nishina Cross-section

Karki,

Dhobi,

Yadav

et al. 2023

J. Nep. Phys. Soc.

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In this study, we investigate the Klein-Nishina differential cross-section equation for total cross-section and extend it to calculate the total molecular cross-section for compounds Al2O3, PbO, and Fe2O3. Our findings reveal that the total molecular cross-section of these compounds is significantly larger, with values 5 times greater than the total atomic cross-section. Furthermore, we determine that the molecular cross-section of Al2O3, PbO, and Fe2O3 is 73, 132, and 118 times greater than the total electronic cross-section, respectively, while the atomic cross-section of these compounds is 15, 66, and 24 times greater. At low energy levels ranging from 1-5 MeV, the entire molecular, atomic, and electronic cross-section dominates due to Compton scattering. However, as the photon energy increases, Compton scattering becomes negligible, and a slight contribution from pair production scattering is observed. We also establish the adequate atomic numbers for Al2O3, PbO, and Fe2O3, which are determined to be 15, 66, and 24, respectively. These results highlight the significance of mass attenuation, cross-section, and adequate atomic number in the selection of radiation shielding materials for various protection purposes. The findings from this study provide valuable insights into the properties and behavior of these compounds, enabling informed decisions in radiation shielding applications.

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“…The literature contains many studies regarding the calculation of Z ef f of alloys using attenuation or scattering methods. Transmission condition or geometry, based on attenuation of * Correspondence: mehmet.buyukyildiz@yalova.edu.tr photons, has been widely used to determine Z ef f of alloys [2][3][4][5][6][7][8][9][10][11][12][13]. On the other hand, the Rayleigh-to-Compton scattering ratio is a nondestructive technique that provides useful data about the crystal structure and physical properties of materials and is based on the measurement of Rayleigh and Compton scattered photons emerging from the sample of composite material in a suitable source-sample-detector arrangement.…”

Section: Introductionmentioning

confidence: 99%

Determination of the effective atomic numbers of Fe$_{x}$Cu$_{1-x} $binary ferroalloys using a nondestructive technique: Rayleigh-to-Compton scattering ratio

Büyükyıldız¹

2016

Turk J Phys

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Abstract:The aim of the present study is to determine effective atomic numbers ( Z ef f ) of Fe x Cu 1−x binary ferroalloys using scattering of 59.54 keV gamma photons at 130• ( x = 4.36Å −1 ) scattering angle. For this purpose, the Rayleigh ( R) and Compton ( C) scattering intensities for the given alloys were measured using a monoenergetic beam of 59.54keV gamma rays and the Rayleigh-to-Compton scattering ratio R/C was determined. Then the Z ef f values of these alloys were determined by interpolating the R/C of the material using the R/C data of adjacent elements in between the R/C of the alloys. For comparison, Z ef f s of alloys were also calculated using direct and interpolation methods in term of scattering R/C and attenuation of gamma photons. Good agreement in relative differences between Z ef f s (experimental and theoretical) was found (maximum of ≤ 3.3% for total att.-direct method) for the chosen alloys and the Rayleigh-to-Compton scattering ratio was shown to be a complementary approach to determine the effective atomic number of binary ferroalloys. In addition, a polynomial equation between the experimental R/C values and the mass attenuation coefficients of alloys was developed to estimate the mass attenuation coefficient of different materials.

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Studies on mass attenuation coefficient, mass energy absorption coefficient, and kerma for Fe alloys at photon energies of 17.44 to 51.70 keV

Cited by 14 publications

References 17 publications

Influence of low-concentrated transition metal oxide, Cu 2 O 3 , impurities on the structural units, ligand field characteristics, and shielding capacity of lead-based borovanadate glass

Influence of low-concentrated transition metal oxide, Cu 2 O 3 , impurities on the structural units, ligand field characteristics, and shielding capacity of lead-based borovanadate glass

Radiation Shielding Properties of Oxides (Al2O3, PbO and Fe2O3) based on Klein-Nishina Cross-section

Determination of the effective atomic numbers of Fe$_{x}$Cu$_{1-x} $binary ferroalloys using a nondestructive technique: Rayleigh-to-Compton scattering ratio

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