Results 11 to 20 of about 14,777,258 (301)

Determination of the effective atomic number: A theoretical justification

open access: yesEPL (Europhysics Letters), 2018
In this paper, we have tried to seek a theoretical justification for the effective atomic number for Compton scattering studies by computing it from free atom Hartree-Fock wave function based Compton profiles compiled by Biggs et al. Typical experimental examples have been provided which show a good agreement with that of theory justifying the validity
Sankarshan, B. M., Umesh, T. K.
openaire   +2 more sources

Advances in Measurements of Electron Density and Effective Atomic Number Using Dual-energy Computed Tomography [PDF]

open access: yesCT Lilun yu yingyong yanjiu
Accurate measurements of electron density and effective atomic number are essential for precise imaging diagnosis and dose estimation in the multiparametric functional analysis of dual-energy computed tomography (CT).
Xinliang LU   +4 more
doaj   +2 more sources

Effective Atomic Numbers of Glass Samples

open access: yesInternational Journal of Computational and Experimental Science and Engineering
Effective atomic numbers are a term used to understand the interaction of a compound or material with radiation. In particular, this term is often used for materials with complex structures that can be expressed by a single fixed atomic number. If different elements in a material are present in different concentrations, the effective atomic number of ...
Karpuz, Nurdan
openaire   +2 more sources

Validation of computed tomography-based attenuation correction of deviation between theoretical and actual values for four computed tomography scanners [PDF]

open access: yesAsia Oceania Journal of Nuclear Medicine and Biology, 2016
Objective: In this study, we aimed to validate the accuracy of computed tomography-based attenuation correction (CTAC) using the bilinear scaling method.Methods: The measured attenuation coefficient (μm) was compared to a theoretical attenuation ...
Nobuhiro Yada, Hideo Onishi
doaj   +1 more source

Investigation of gamma-ray shielding parameters of bismuth phospho-tellurite glasses doped with varying Sm2O3

open access: yesHeliyon, 2022
The gamma ray shielding parameters such as mass attenuation coefficient, effective atomic number, equivalent atomic number, exposure buildup factor, and energy absorption buildup factor were determined for the 47.5P2O5+45ZnO+(5-x) Bi2O3+2.5TeO2 +xSm2O3 ...
S.B. Kolavekar   +4 more
doaj   +1 more source

Interaction studies and gamma-ray properties of some low-Z materials [PDF]

open access: yesNuclear Technology and Radiation Protection, 2016
In present work we use NaI(Tl) detector in narrow-beam good geometry set-up for the gamma ray attenuation studies of some low-Z materials. The parameters such as mass attenuation coefficients, effective atomic numbers and effective electron ...
Bhosale Rameshwar R.   +3 more
doaj   +1 more source

Investigation on Photon Interaction Properties of Some Polymers Used in Production of Hydrogels

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2018
Due to their excellent features and applications, hydrogels become so popular and are used for fabricating contact lenses, cancer treatment, hygiene products, tissue engineering, drug and delivery systems.
ESRA KAVAZ
doaj   +1 more source

Mass attenuation coefficient and its photon interaction derivables of some skeletal muscle relaxants

open access: yesJournal of Radiation and Cancer Research, 2016
Context: The study of photon interactions with biological materials is essential in radiation medicine and biology, nuclear technology and space research, since radioactive sources are used.
H C Manjunatha
doaj   +1 more source

Determination of effective atomic number of rubber [PDF]

open access: yes, 1983
This paper reports a simple technique to determine the effective atomic number of rubber materials. The gamma ray attenuation coefficient of rubber was measured with high energy resolution Si(Li) detector at low gamma ray energies and the effective ...
Part Time Mohd Zulhimi bin Zolkefali
core   +2 more sources

An investigation of the nuclear shielding effectiveness of some transparent glasses manufactured from natural quartz doped lead cations

open access: yesNuclear Engineering and Technology, 2021
The influence of lead cations on natural quartz (QZ) from Egypt as a glass shielding material for the composition with nominal formula (10Na2O - (90 - x) QZ – xPbO (where x = 30, 35, 40, 45 and 50 mol %)) was examined. The studied samples are synthesized
Said M. Kassem   +5 more
doaj   +1 more source

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