scholarly journals Dependence of gamma-ray absorption coefficient on the size of lead particle

2011 ◽  
Vol 8 (2) ◽  
pp. 613-617 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Particle Size ◽  
Absorption Coefficient ◽  
Attenuation Coefficient ◽  
Gamma Ray ◽  
Lead Particle ◽  
Gamma Ray Attenuation

In this study, dependence of gamma-ray absorption coefficient on the size of Pb particle size ranging from 200µm up to 2.5mm, using different weights of each particle size. The results show that gamma-ray attenuation coefficient is inversely proportional with the size of Pb particle size due to the reduction of the spaces between the lead particles.

Effect of Particle Size of W-Brass Composite on Gamma-Ray Absorption Coefficient

2015 ◽  
Vol 754-755 ◽  
pp. 19-23
Author(s):  
Kahtan S. Mohammed ◽  
Ali Basheer Azeez ◽  
Mohd Mustafa Al Bakri Abdullah ◽  
Kamarudin Hussin ◽  
Azmi B. Rahmat
Keyword(s):  
Particle Size ◽  
Absorption Coefficient ◽  
Gamma Ray ◽  
Vickers Microhardness ◽  
Volume Fraction ◽  
Milled Powder ◽  
Microstructural Characterization ◽  
Effect Of Particle Size ◽  
Gamma Ray Attenuation ◽  
Attenuation Values

In this study, the dependence of gamma-ray absorption coefficient on amount and particle size of tungsten (W) in W-brass sintered compacts was investigated. To attain this goal, two sets of different W wt. % were prepared (W 65wt. %, W75wt. % and W85 wt. %). One set has compacts of as received powder and the other set has compacts of ball milled powder. The results showed that gamma-ray attenuation coefficient is inversely proportional to the particle size of the tested sintered compacts and directly proportional to the W content. Vickers microhardness, attenuation properties and microstructural characterization were carried out on the sintered samples. The attenuation test was conducted using gamma spectrometer with Genie 200 software. The samples of ball milled powder and of the highest volume fraction of W showed the highest hardness and attenuation values.

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.

Improved Soil Particle-Size Analysis by Gamma-Ray Attenuation

1997 ◽  
Vol 61 (1) ◽  
pp. 23-26 ◽  
Author(s):  
J. C. M. Oliveira ◽  
K. Reichardt ◽  
C. M. P. Vaz ◽  
D. Swartzendruber
Keyword(s):  
Particle Size ◽  
Gamma Ray ◽  
Particle Size Analysis ◽  
Soil Particle ◽  
Size Analysis ◽  
Soil Particle Size ◽  
Gamma Ray Attenuation

SOIL PARTICLE SIZE FRACTIONS DETERMINED BY GAMMA-RAY ATTENUATION

Soil Science ◽  
1999 ◽  
Vol 164 (6) ◽  
pp. 403-410 ◽  
Author(s):  
Carlos Manoel Pedro Vaz ◽  
João de Mendonça Naime ◽  
Álvaro Macedo
Keyword(s):  
Particle Size ◽  
Gamma Ray ◽  
Soil Particle ◽  
Size Fractions ◽  
Particle Size Fractions ◽  
Soil Particle Size ◽  
Gamma Ray Attenuation ◽  
Soil Particle Size Fractions

Gamma-Ray Attenuation Coefficient Measurements

1973 ◽  
Vol 8 (6) ◽  
pp. 2814-2818 ◽  
Author(s):  
S. Gopal ◽  
B. Sanjeevaiah
Keyword(s):  
Attenuation Coefficient ◽  
Gamma Ray ◽  
Gamma Ray Attenuation

scholarly journals CALCULATION OF GAMMA-RAY ATTENUATION PARAMETERS FOR ALUMINIUM, IRON, ZIRCONIUM, AND TUNGSTEN

2020 ◽  
pp. 60-65
Author(s):  
Hiwa Mohammad Qadr
Keyword(s):  
Gamma Radiation ◽  
Free Path ◽  
Attenuation Coefficient ◽  
Gamma Ray ◽  
Mean Free Path ◽  
Mass Attenuation Coefficient ◽  
Radiation Shielding ◽  
Linear Attenuation Coefficient ◽  
Gamma Ray Attenuation ◽  
And Tungsten

The purpose of this study was to determine the linear attenuation coefficient, the mass attenuation coefficient, Half Value Layer. Tenth Value Layer and Mean Free Path for four different shielding materials such as aluminium, iron, zirconium and tungsten. By using the gamma-radiation energies emitted from 152Eu, 22Na, 137Cs, and 60Co radioactive sources. For this purpose, the attenuation measurements were performed using NaI(TI) detector. Calculated values of all parameters of the all shielding materials were compared with each other. The results of all presented parameters show that, tungsten has the best radiation shielding compared to other shielding materials. Then, the obtained parameters were compared with the theoretical values.

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