Vibrational, thermal features, and photon attenuation coefficients evaluation for TeO2-B2O3-BaO-ZnO-Na2O-Er2O3-Pr6O11 glasses as gamma-rays shielding materials

2018 ◽  
Vol 481 ◽  
pp. 568-578 ◽  
Author(s):  
G. Lakshminarayana ◽  
S.O. Baki ◽  
M.I. Sayyed ◽  
M.G. Dong ◽  
A. Lira ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Attenuation Coefficients ◽  
Photon Attenuation ◽  
Thermal Features

scholarly journals Photon Attenuation Coefficients of Fly-Ash Based Geopolymers Synthesized with Different Barite Proportions

2021 ◽  
Vol 3 (4) ◽  
pp. 1-5
Author(s):  
Sabri M. Shalbi ◽  
A. M. Al-Jarrah ◽  
M. S. Jaafar ◽  
Naser M. Ahmed
Keyword(s):  
Fly Ash ◽  
Gamma Rays ◽  
Theoretical Calculations ◽  
Radiation Shielding ◽  
Point Sources ◽  
Attenuation Coefficients ◽  
Increase With Increase ◽  
Photon Attenuation ◽  
Protection Devices ◽  
Experimental Values

Mass attenuation coefficients of fly-ash based geopolymers fabricated with different proportions of barite are measured using a high-resolution NaI spectrometer detector. After fabrication, the samples were irradiated with gamma-rays emitted from point sources of 241Am and 137Cs. The measured experimental values are found to be consistent with theoretical calculations carried out using the XCOM program. Based on the results, the radiation shielding capacity of the geopolymers is found to increase with increase in barite proportion. In addition, the fly-ash based geopolymers fall within the internationally established range and are thus acceptable for use as radiation protection devices.

Photon attenuation coefficients of concrete includes barite in different rate

2010 ◽  
Vol 37 (7) ◽  
pp. 910-914 ◽  
Author(s):  
I. Akkurt ◽  
H. Akyıldırım ◽  
B. Mavi ◽  
S. Kilincarslan ◽  
C. Basyigit
Keyword(s):  
Attenuation Coefficients ◽  
Photon Attenuation

Gamma Ray Attenuation Coefficient Measurement in Energies 1172 keV and 1332 keV for Neutron Absorbent Saturated Solutions

2006 ◽  
Author(s):  
Majid Jalali
Keyword(s):  
Attenuation Coefficient ◽  
Gamma Rays ◽  
Gamma Ray ◽  
Neutron Absorption ◽  
Attenuation Coefficients ◽  
Neutron Sources ◽  
Coefficient Measurement ◽  
Gamma Ray Attenuation ◽  
Mass Attenuation Coefficients ◽  
Saturated Solutions

The compounds, Na2B4O7, H3BO3, CdCl2 and NaCl and their solutions, attenuate gamma rays in addition to neutron absorption. These compounds are widely used in shielding of neutron sources, reactor control and neutron converters. Mass attenuation coefficients of gamma related to saturated solutions of the above four compounds, in energies 1172 keV and 1332 keV have been measured by NaI detector and agree very well with the results obtained by Xcom code. Experiment and computation show that, H3BO3 has the highest gamma ray attenuation coefficient among the aforementioned compounds.

Determination of Photon Attenuation Coefficients of Steel Doped Barite Plasters

2019 ◽  
Vol 11 (11) ◽  
pp. 1075-1078
Author(s):  
İskender Akkurt ◽  
Kadir Günoğlu ◽  
Şemsettin Kılınçarslan
Keyword(s):  
Experimental Measurement ◽  
Computer Code ◽  
Gamma Spectrometer ◽  
Attenuation Coefficients ◽  
Photon Attenuation ◽  
Decorative Material ◽  
Radioactive Sources

The plaster is used as a flattening of the interior and exterior surfaces of the buildings and as decorative material. In this study, photon attenuation coefficients of barite plaster containing steel were measured. The measurements performed at 511, 835 and 1275 keV which are obtained from 22Na and 54Mn radioactive sources, using a gamma spectrometer that contains a NaI(Tl) detector and MCA. The measured results were compared with the calculation obtained using computer code of XCOM for 1 keV–1 GeV gamma energies. Also, half value layer (HVL) and tenth value layer (TVL) were calculated using the results obtained from the experimental measurement.

Measurement of Mass Attenuation Coefficients of Blue Sapphire at Different Photon Energy by Compton Scattering Technique

2011 ◽  
Vol 103 ◽  
pp. 71-75 ◽  
Author(s):  
Jakrapong Kaewkhao ◽  
P. Lofimkitjaroenporn ◽  
S. Tuscharoen ◽  
T. Kittiauchawal ◽  
W. Chewpraditkul ◽  
...  
Keyword(s):  
Compton Scattering ◽  
Attenuation Coefficient ◽  
Gamma Rays ◽  
Mass Attenuation Coefficient ◽  
Attenuation Coefficients ◽  
Scattering Technique ◽  
Mass Attenuation Coefficients ◽  
Experimental Values ◽  
Good Agreement ◽  
Mass Attenuation

The mass attenuation coefficients of blue sapphire were measured at the different energy of γ-rays using the Compton scattering technique. There are in good agreement of scattered gamma rays energies between theoretical value and experimental value, reflecting the validation of Compton scattering system setup. The results show that, the experimental values of mass attenuation coefficient are in good agreement with the theoretical values. The mass attenuation coefficients increase with the decrease in gamma rays energies. This may be attributed to the higher photon interaction probability of blue sapphire at lower energy. This result is a first report of mass attenuation coefficient of blue sapphire at different gamma rays energies.

scholarly journals A study of the effective atomic number of SixPb0.7-x(Fe2O3)0.3 ternary alloys for photons

2016 ◽  
Vol 31 (4) ◽  
pp. 327-334
Author(s):  
Mehmet Buyukyildiz ◽  
Murat Kurudirek
Keyword(s):  
Atomic Number ◽  
Gamma Rays ◽  
Interpolation Method ◽  
Effective Atomic Number ◽  
Polynomial Equation ◽  
Ternary Alloys ◽  
Photon Scattering ◽  
Photon Attenuation ◽  
Scattering Ratio ◽  
First Time

The effective atomic number (Zeff) of SixPb0.7-x(Fe2O3)0.3 ternary alloys was obtained for photons. Rayleigh to Compton scattering ratio (R/C) has been determined to obtain the Zeff of SixPb0.7-x(Fe2O3)0.3 ternary alloys of varying Si and Pb (10 %-60 %) content for scattering of 59.54 keV g-rays at an angle of 130?. The theoretical R/C ratios of elements were plotted as a function of the atomic number and fitted to a polynomial equation. Experimental R/C values of alloys were then used to obtain Zeff using this fit equation. Also, Zeff values of these alloys were determined for the first time by interpolating the R/C of the material using the R/C data of adjacent elements in between the R/C of the alloy lies. The agreement between the interpolation method and the fit equation was quite satisfactory. The obtained Zeff for photon scattering were then compared to the Zeff for total photon attenuation obtained using the Auto-Zeff program. Significant variations were observed between the Zeff for scattering and the total attenuation of gamma rays.

Sign in / Sign up

Export Citation Format

Share Document