scholarly journals Mass attenuation coefficient of binderless, pre-treated and tannin-based Rhizophora spp. particleboards using 16.59 – 25.26 keV photon energy range

Author(s):  
Mohd Fahmi Mohd Yusof ◽  
Puteri Nor Khatijah Abdul Hamid ◽  
Sabar Bauk ◽  
Rokiah Hashim ◽  
Abdul Aziz Tajuddin
2016 ◽  
Vol 675-676 ◽  
pp. 756-759
Author(s):  
N.W. Sangwaranatee ◽  
Narong Sangwaranatee ◽  
Jakrapong Kaewkhao ◽  
Natthakridta Chanthima

Commercial window added with BaSO4 have been studies on the mass attenuation coefficient and compared it with some standard shielding concretes. This parameter has been investigated at photon energy from 1 keV to 100 GeV on the basis of calculation. The theoretical values of photon interaction were obtained by the WinXCom program. The variations of mass attenuation coefficient of commercial window and standard shielding concretes are shown graphically with photon energy. It has been observed that the commercial window added with 30% BaSO4 has higher value of mass attenuation coefficient than all of standard shielding concretes at the photon energy range above 40-400 keV. Also, discontinuous jump of mass attenuation coefficient at the lower energy has been discusses.


2009 ◽  
Vol 44 (1) ◽  
pp. 63-67 ◽  
Author(s):  
B.R. Kerur ◽  
V.T. Manjula ◽  
M.T. Lagare ◽  
S. Anil Kumar

2016 ◽  
Vol 675-676 ◽  
pp. 443-446 ◽  
Author(s):  
Pruittipol Limkitjaroenporn ◽  
Wasu Cheewasukhanont ◽  
Kitipun Boonin ◽  
Jakrapong Kaewkhao

The Bi2O3 doped with soda lime borosilicate glasses in composition xBi2O3 : 15Na2O : 10CaO : 20B2O3 : (55-x)SiO2 at different concentrations (x = 0, 5, 10, 15, 20, 25 mol%) were studied the photon interactions. The total mass attenuation coefficient, coherent, incoherent, photoelectric absorption and pair production of prepared were studies using WinXcom Program at 1keV to 2MeV. The result of total mass attenuation coefficient and photoelectric absorption were decreases but discontinue because of photoelectric absorption edge at low energy. The photoelectric effect shows the main interaction at the low energy and decrease with increasing of photon energy. The higher photon energy the incoherent scattering found to be the main interaction. But at the photon energy 1.022 MeV, the pair production will be occurs and found to be the main interaction at the photon energy higher than 1.022 MeV.


Author(s):  
Arome Aruwa ◽  
Philibus Musa Gyuk ◽  
Columbus Tobechukwu Eze ◽  
Suleiman Isah ◽  
Achor Mathias Ogwo ◽  
...  

The effective atomic number, electron density and mass attenuation coefficient of some selected active pharmaceutical ingredients such as Diclofenac Sodium, Femotidine, Alprazolam, Amiodar, Amiodarone, Ciprofloxacin, and Nimesulide have been calculated over the energy range from 1 keV to 100 GeV for total and partial photon interactions by using WinXCom. The obtained data shows that the change in mass attenuation coefficient and electron density varies with energy and chemical composition of the active pharmaceutical ingredients (API’s) in drugs. The results in the variation of photon interaction with energy and effective atomic number of the API’s in drug are shown in the logarithmic graphs.


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