Gamma Radiation Method for the Determination of Density of Wood materials

Mass attenuation coefficients of ten different types of wood materials were determined using gamma radiation of 1332 keV from 60Co source. Two mathematical models have been developed for the prediction of density using variation with relaxation length and half value layer of wood materials. A good agreement was observed (greater than 83%) between the measured values and the predicted model 1 and 2. Results show that Azadiracta indica has the highest relaxation length and the lowest mass attenuation coefficient, while Albizia saman has the least relaxation length and the highest mass attenuation coefficient. Results also show that Azadiracta indica has the highest half value layer and Albizia saman has the least half value layer.

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

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.103.71 ◽

2011 ◽

Vol 103 ◽

pp. 71-75 ◽

Cited By ~ 11

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.

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A mathematical function for describing the dependence of the mass attenuation coefficient versus energy for composite materials in an energy range of 100 keV to 2 MeV

Nuclear Technology and Radiation Protection ◽

10.2298/ntrp180621001a ◽

2019 ◽

Vol 34 (1) ◽

pp. 47-56

Author(s):

Nguyen Anh ◽

Lam Nhat ◽

Ho Ngan ◽

Hoang Tam

Keyword(s):

Composite Materials ◽

Attenuation Coefficient ◽

Mass Attenuation Coefficient ◽

Coefficient Of Determination ◽

Mathematical Function ◽

Attenuation Coefficients ◽

Coefficient Versus ◽

Mass Attenuation Coefficients ◽

Mass Attenuation

This work proposes a mathematical function for describing the dependence of mass attenuation coefficients vs. energy for composite materials in the range of 100 keV to 2 MeV. The obtained results show that the proposed function is capable of accurately describing the data with a coefficient of determination of approximately 1 for all investigated materials. Using the proposed mathematical function, the mass attenuation coefficients were interpolated and compared with the results from the Monte Carlo simulation. The results show good agreement when the simulated to interpolated mass attenuation coefficient ratios are in the range from 0.95 to 1.05. Moreover, the values of interpolated mass attenuation coefficients have also been compared with the experimental data in the previous works which indicates that most of these ratios range from 0.9 to 1.1. This article has been corrected. Link to the correction <a href="http://dx.doi.org/10.2298/NTRP1902209E">10.2298/NTRP1902209E</a>

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Theoretical and experimental determination of mass attenuation coefficients of lead-based ceramics and their comparison with simulation

Nuclear Technology and Radiation Protection ◽

10.2298/ntrp1602142v ◽

2016 ◽

Vol 31 (2) ◽

pp. 142-149 ◽

Cited By ~ 3

Author(s):

Alireza Vejdani-Noghreiyan ◽

Elham Aliakbari ◽

Atiyeh Ebrahimi-Khankook ◽

Mahdi Ghasemifard

Keyword(s):

Gamma Ray ◽

Mass Attenuation Coefficient ◽

X Ray Diffraction ◽

Attenuation Coefficients ◽

X Ray ◽

Simulation Results ◽

Theoretical Results ◽

Good Agreement ◽

Mass Attenuation

Mass attenuation coefficient of lead-based ceramics have been measured by experimental methods and compared with theoretical and Monte Carlo simulation results. Lead-based ceramics were prepared using mixed oxide method and the X-ray diffraction analysis was done to evaluate the crystal structure of the produced handmade ceramics. The experimental results show good agreement with theoretical and simulation results. However at two gamma ray energies, small differences between experimental and theoretical results have been observed. By adding other additives to ceramics and observing the changes in the shielding properties such as flexibility, one can synthesize and optimize ceramics as a neutron shield.

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Determination of the mass attenuation coefficient for Aluminum element using (Cu,Mo) X-rays tubes

Tikrit Journal of Pure Science ◽

10.25130/j.v24i1.782 ◽

2019 ◽

Vol 24 (1) ◽

pp. 82

Author(s):

Ahmad Mohamed Kheder ◽

Muhsin Hasan Ali

Keyword(s):

Experimental Data ◽

Attenuation Coefficient ◽

Cross Sections ◽

Mass Attenuation Coefficient ◽

X Rays ◽

Attenuation Coefficients ◽

X Ray ◽

Mass Attenuation Coefficients ◽

Mass Attenuation

In this study the value of linear and mass attenuation coefficients of Aluminum element (Al) were determinated by using x-ray Cu-tube of energies CuKα (8.048) KeV, CuKβ (8.906) KeV, and Mo-tube of energies MoKα (17.480) KeV and MoKβ (19.609) KeV.the voltage between the two electrodes are up to 35 KV.The measured values are compared with other experimental data showing a general agreement within a precision of 0.2% - 0.8%. The mass attenuation cross-sections were thus derived and compared with other experimental data available on database of x-ray attenuation cross-sections. The agreement is always within ±7%. http://dx.doi.org/10.25130/tjps.24.2019.013

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

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.675-676.730 ◽

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.

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Determination of Mass Attenuation Coefficient for some Technetium‐99m Compounds

Macromolecular Symposia ◽

10.1002/masy.202000095 ◽

2020 ◽

Vol 393 (1) ◽

pp. 2000095

Author(s):

A. Manjunath ◽

A. Ashwini ◽

B. R. Kerur ◽

G. M. Pushpanjali

Keyword(s):

Attenuation Coefficient ◽

Mass Attenuation Coefficient ◽

Technetium 99M ◽

Mass Attenuation

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Z dependence of photon interactions in wood materials

Canadian Journal of Physics ◽

10.1139/cjp-2012-0388 ◽

2013 ◽

Vol 91 (3) ◽

pp. 221-225 ◽

Cited By ~ 3

Author(s):

B. Saritha ◽

A.S. Nageswara Rao

Keyword(s):

Gamma Ray ◽

Mass Attenuation Coefficient ◽

Narrow Beam ◽

Attenuation Coefficients ◽

Beam Geometry ◽

Mass Attenuation Coefficients ◽

Experimental Values ◽

Photon Interactions ◽

Good Agreement ◽

Mass Attenuation

Transmission experiments were performed on wood in a narrow-beam geometry using a collimated gamma ray beam at 59.5 and 661.6 keV. The mass attenuation coefficients were determined from experiment, and effective atomic numbers were computed from theoretical equations. It was found that the mass attenuation coefficient decreases with increasing photon energy. Experimental values were compared with those from the XCOM database and with analytical results, and good agreement was achieved. This type of study gives some insight about photon interactions with wood materials.

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