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Dependence of the effective mass attenuation coefficient of gold nanoparticles on its radius.
Physica Medica, 2022Several investigations are being carried since the past decade to use gold nanoparticles' (AuNP) suspensions as contrast agents (CA) for imaging in Computed Tomography. For this, the optimal size of AuNP has received considerable attention, which is addressed here.In this theoretical study, effective attenuation coefficient for a single spherical ...
R. R. Haghighi +4 more
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Soil mass attenuation coefficient: Analysis and evaluation
Annals of Nuclear Energy, 2014Abstract The mass attenuation coefficient ( μ ) is an important parameter to characterize the penetration and interaction of gamma-rays in the soil. Accurate determinations of μ are important to obtain representative values of soil physical properties by gamma-ray attenuation technique. In this study, the effect of collimator size (2–4 mm diameters)
Jean C. S. Costa +4 more
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The effect of energy resolution of detection instrument on mass attenuation coefficient
Journal of Instrumentation, 2018The effect of energy resolution of two detection systems, HPGe and NaI(Tl), was determined by Monte Carlo (MC) calculation on mass attenuation coefficients of magnesium (Mg) and tungsten (W). In order to reveal the energy resolution effect, the detectors'
N. Çelik +3 more
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Annals of Nuclear Energy, 2012
Abstract The mass attenuation coefficients for some vitamins (retinol, beta-carotene, thiamine, riboflavin, niacinamide, pantothenic acid, pyridoxine, biotin, folic acid, cyanocobalamin, ascorbic acid, cholecalciferol, alpha-tocopherol, ketamine, hesperidin) were determined experimentally and theoretically at 356.61, 661.66, 1250 and 1408.01 keV ...
D. Demir, A. Turşucu
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Abstract The mass attenuation coefficients for some vitamins (retinol, beta-carotene, thiamine, riboflavin, niacinamide, pantothenic acid, pyridoxine, biotin, folic acid, cyanocobalamin, ascorbic acid, cholecalciferol, alpha-tocopherol, ketamine, hesperidin) were determined experimentally and theoretically at 356.61, 661.66, 1250 and 1408.01 keV ...
D. Demir, A. Turşucu
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Determination of mass attenuation coefficient of low-Z dosimetric materials
Radiation Effects and Defects in Solids, 2014The mass attenuation coefficients of some low-Z dosimetric materials with potential applications in dosimetry, medical and radiation protection have been investigated using the Monte Carlo simulation code Monte Carlo N-Particle (MCNP). Appreciable variations are noted for the mass attenuation coefficient by changing the photon energy.
A. M. El-khayatt +3 more
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Communications in Soil Science and Plant Analysis, 2023
The gamma-ray mass attenuation coefficient is a crucial parameter to characterize the penetration and propagation of gamma rays in complex, multiphased, and heterogeneous materials like soil.
N. Dhingra
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The gamma-ray mass attenuation coefficient is a crucial parameter to characterize the penetration and propagation of gamma rays in complex, multiphased, and heterogeneous materials like soil.
N. Dhingra
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Mass-attenuation coefficients of beta particles
International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, 1990Abstract A method to obtain mass-attenuation coefficients of β particles is described. This method is based upon the simulation of β emission by means of the β energy spectrum. The range of the β particle is chosen as random incidence by means of range distribution of monoenergetic electrons which have the same energy as the β particle.
CENGIZ, AHMET, OZMUTLU, C
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Mass attenuation coefficients of β+-particles
Applied Radiation and Isotopes, 1999Abstract The beta-spectra for the allowed transition and the first forbidden unique transition are calculated with enough accuracy. By applying them to the semiempirical transmission equation of monoenergetic electrons and positrons, we obtained the mass attenuation coefficients of beta-particles.
H.S. Han, H.S. Chai, C.Y. Yi, J.-S Jun
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Calculation of Mass Attenuation Coefficients of Beta Particles
Radiation Protection Dosimetry, 1998Using the semi-empirical equations for the transmission coefficient of monoenergetic electrons, the mass attenuation coefficient of beta particles has been calculated. Beta spectra for 'allowed' and 'first forbidden' transitions are considered. The calculated mass attenuation coefficients for {beta}- emitters determined in the present study agree ...
U.J. Park +5 more
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