Results 11 to 20 of about 184,645 (294)
International audienceThis study presents a numerical method in order to determine the mass attenuation coefficient of a sample with an unknown chemical composition at low energy.
Degrelle, D, Groetz, J.-E, Mavon, C
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Photon attenuations of trichloride of gadolinium by Geant4 and XCom: a comparative study
The total mass attenuation coefficient of trichloride gadolinium has been investigated utilizing Geant4 compared with WinXCom simulation data at energies; 1–10 MeV.
A. Saim +8 more
doaj +1 more source
Towards understanding the relation between the gas and the attenuation in galaxies at kpc scales [PDF]
[abridged] Aims. The aim of the present paper is to provide new and more detailed relations at the kpc scale between the gas surface density and the face-on optical depth directly calibrated on galaxies, in order to compute the attenuation not only for
Baes, M. +15 more
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Attenuation Law of Stress Waves in Cracked Rock Mass under Different Confining Pressures
Through theoretical analysis and indoor model tests, this paper explores the attenuation law of stress waves in the intact confined rock mass and cracked rock mass under different confining pressures, especially the relationship between the stress ...
Xiaoming Lou, Rui Luo, Jin Yu
doaj +1 more source
Absorption Parameters for Glucose Solution for Gamma Ray at 59.54 keV
Photon absorption parameters for glucose solution at different concentrations such as linear attenuation coefficient, mass attenuation coefficient, effective atomic number, electron density and density determined at 59.54 keV photon energy.
Maan S. Al-Arif, Diyaree O. Kakil
doaj +1 more source
Implications of Gamma-Ray Transparency Constraints in Blazars: Minimum Distances and Gamma-Ray Collimation [PDF]
We develop a general expression for the gamma-gamma absorption coefficient for gamma-rays propagating in an arbitrary direction at an arbitrary point in space above an X-ray emitting accretion disk.
Becker, Peter A., Kafatos, Menas
core +5 more sources
The attenuation measurements of x-ray of voltage range (21kv) for hosted polymer material were done using x-ray unit, in order to extract the effect of adding carboxy methyl cellulose material (CMC) to low density polyethylene on x-ray radiation ...
Raed M.Shaban +4 more
doaj +1 more source
Study of γ-ray energy losses in the ionic crystalsusingMonte Carlo code [PDF]
In this paper, measurements were carriedout of thecalculated attenuation of the ranges gamma rays energy(279,356,479,662) KeV and using radioactive sources (Hg203, Ba133, W189, Cs137).
Abdulhadi M. Ghelab +2 more
doaj +1 more source
In order to better detect information about a mass in breast tissue, an ultrasound tomography algorithm based on adaptive time gain compensation (TGC) was designed.
Chang Liu +5 more
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We calculate the radiation shielding parameters of CoCrFeNiTiAlx alloys which consist of mass attenuation coefficient, linear attenuation coefficient, mean free path, half-value layer, total atomic cross section, effective atomic number and effective ...
Nurettin Arpac, Murat Aygun
doaj +1 more source

