Results 111 to 120 of about 11,766 (167)

Thickness measurement of material plates using low-activity sources with various energies in gamma-ray transmission technique

Applied Radiation and Isotopes, 2023
This study proposes an approach based on the gamma-ray transmission technique to accurately determine the thickness of material plates using a low-activity source. For this purpose, we have set up an experimental configuration without collimators for both source and detector.
Huynh Dinh Chuong, Truong Thanh Sang, Le Thi Ngoc Trang, Nguyen Thi Truc Linh, Le Hoang Minh, Hoang Duc Tam   +5 more
openaire   +2 more sources

Rapid quality control for coal seams by gamma ray transmission technique

Applied Radiation and Isotopes, 1999
Abstract The quality of coal expressed as useful heat value (UHV) depends on various parameters such as fixed carbon, volatiles, ash and moisture. These factors have been assessed and the detailed dependence of UHV on these parameters has been studied for samples of coal from a local mine.
N Raja Sekhar, S.V.S Ramana Reddy, A.S Nageswara Rao   +2 more
openaire   +1 more source

On-line nuclear ash gauge for coal based on gamma-ray transmission techniques

Journal of Radioanalytical and Nuclear Chemistry, 1999
Developments and applications of on-line nuclear gauges in the coal industry are highly requested. In this work, a nuclear ash gauge for coal, based on γ-ray transmission techniques is developed. Single and dual energy γ-ray beams are used to determine the ash content of coal.
R. A. M. Rizk, A. H. El-kateb, A. M. Abdul-kader   +2 more
openaire   +1 more source

Gamma ray transmission technique applied to porous phase characterization of low-porosity ceramic samples

Materials and Structures, 2012
The aim of this study is to apply gamma ray transmission (GRT), a non destructive technique, in the structural characterization of low-porosity ceramic samples. GRT technique is based on the attenuation that photons of an incident radiation beam undergo when passing through the material.
Anderson Camargo Moreira, Carlos Roberto Appoloni, Celso Peres Fernandes   +2 more
openaire   +1 more source

Thickness determination of material plates by gamma-ray transmission technique using calibration curves constructed from Monte Carlo simulation

Radiation Physics and Chemistry, 2022
Abstract This paper presents a new approach for determining the thickness of material plates by gamma-ray transmission technique using calibration curves obtained from simulated spectra through the Monte Carlo algorithm. The narrow transmitted gamma-ray beam from a collimated source of 137Cs (with the energy of 661.7 keV) for different thicknesses of
Huynh Dinh Chuong, Le Thi Ngoc Trang, Le Hoang Minh, Nguyen Thi Truc Linh, Hoang Duc Tam, Tran Thien Thanh   +5 more
openaire   +1 more source

Sulphur content estimation of Venezuelan heavy oil by fast neutron and gamma transmission technique

Journal of Radioanalytical and Nuclear Chemistry, 2017
A compact and modern equipment for implementing the fast neutron and γ-ray transmission technique (FNGT) has been developed in order to estimate the sulphur content of crude oil. FNGT is employed for non- destructive analysis of different kinds of samples.
Pino, F., Stevanato, L., Fabris, D., Barros, H., Vidal, A., Nebbia, G., Lunardon, M., Moretto, S., Sajo-bohus, L.   +8 more
openaire   +1 more source

Impact of transmission techniques in asymmetric RF/FSO system over Nakagami‐m and gamma‐gamma fading channels with pointing errors

International Journal of Communication Systems, 2018
SummaryIn this paper, the performance of transmission techniques on the fixed‐gain amplify‐and‐forward–based asymmetric radio frequency/free space optical (RF/FSO) communication system is studied. The RF link and FSO link are, respectively, modeled by the Nakagami‐m and Gamma‐Gamma fading channels under the effect of zero boresight and non‐zero ...
Kehinde O. Odeyemi, Pius A. Owolawi
openaire   +1 more source

Dual energy gamma-ray transmission techniques applied to on-line analysis in the coal and mineral industries

The International Journal of Applied Radiation and Isotopes, 1985
Abstract The use of dual energy γ-ray transmission techniques to determine the concentration of a higher atomic number (Z) component in a lower Z matrix is investigated. Examples discussed are the determination of lead in lead-zinc ore, iron in high-grade iron ore, uranium in solution, and ash in coal. These examples are considered in relation to the
J.S. Watt, E.J. Steffner
openaire   +1 more source

Combining Monte Carlo simulation and experimental data for determining the density of polymer materials in gamma scattering and gamma transmission measurements

Journal of Radioanalytical and Nuclear Chemistry, 2023
N. Linh, L. Trang, T. Sang, H. Chuong, H. Tam   +4 more
semanticscholar   +1 more source

Intercomparison of gamma ray scattering and transmission techniques for fluid–fluid and fluid–air interface levels detection and density measurements

Applied Radiation and Isotopes, 2012
This paper focuses on the fluid-fluid, fluid-air interface level detection and density determination by gamma scattering method and intercomparison with transmission (gammatography) technique. The Monte Carlo (MC) numerical simulation of the scattering phenomena is done using the MCNP code. The obtained accuracies and resolution of the level detections
P, Priyada, M, Margret, R, Ramar, , Shivaramu   +3 more
openaire   +2 more sources