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Continuous on-line Ash Content Measurement in Raw Lignite Using the Dual Energy Gamma-ray Transmission Gauge KRAS 2

Isotopenpraxis Isotopes in Environmental and Health Studies, 1987
A gauge based on measurements of the transmission through coal of low and high energy γ-rays has been developed for the on-stream determination of the ash content. The KRAS-2 (complex radiometric analysis system) gauge has been tested both on the main conveyor of the power station at Hagenwerder and, in an improved version, on the main conveyor belt of
H.-W. Thümmel, R. Göldner
openaire   +3 more sources

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   +3 more sources

Dual Energy Gamma-ray Transmission for Coincident Measurement of Water Content and Dry Bulk Density of Soil

Nature, 1967
GAMMA-RAY transmission has several advantages for the measurement of the water content or dry bulk density of soils, provided that only one of these properties varies1,2. It is important when working with layered soils that a high degree of sample resolution is attained and this can be achieved by counting unattenuated primary energy photons.
openaire   +3 more sources

Assessment of Sortability Using a Dual-Energy X-ray Transmission System for Studied Sulphide Ore

open access: yesMinerals (Basel, Switzerland), 2021
In hard rock mining, sensor-based sorting can be applied as a pre-concentration method before the material enters the mill. X-ray transmission sensors have been explored in mining since 1972.
Maria Holuszko
exaly   +2 more sources

Combination of Dual-Energy X-ray Transmission and Variable Gas-Ejection for the In-Line Automatic Sorting of Many Types of Scrap in One Measurement

open access: yesApplied Sciences (Switzerland), 2021
As an important part of pretreatment before recycling, sorting has a great impact on the quality, efficiency, cost and difficulty of recycling. In this paper, dual-energy X-ray transmission (DE-XRT) combined with variable gas-ejection is used to improve ...
Tianzhong Xiong, Wenhua Ye, Ye Wenhua
exaly   +2 more sources

A novel automated separator based on dual energy gamma-rays transmission

Measurement Science and Technology, 2000
The paper describes a novel automated separator, of which the key point is the determination of ash in coal by a technique based on the attenuation of dual energy γ-rays transmission. The technique is often used to determine the concentration of a higher atomic number (Z) component in a lower Z matrix.
Xu Qi, Zhang Yongchuan
openaire   +1 more source

Assessment of coal sortability and washability using dual energy X-ray transmission system

International Journal of Coal Preparation and Utilization, 2022
Maria Holuszko
exaly  

A dual-energy gamma-ray transmission method using 137Cs and 241Am sources for determining effective atomic number and mass attenuation coefficient of lightweight materials

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Le Thi Ngoc Trang   +3 more
openaire   +1 more source

Is Bone Mineral Density Measurement Using Dual-Energy X-Ray Absorptiometry Affected by Gamma Rays?

Journal of Clinical Densitometry, 2013
Jian-Fang Li, Mu-Hua Cheng
exaly  

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