This presents a need for special (1990) demonstrated that the application of the gamma-ray techniques to monitor the complex behaviour of slurry and emission imaging technique could be extended to research grinding media inside the mill for the purpose of mill control in industrial processes such as fluidized beds where direct and optimization.

The radiation techniques that are commonly employed in the exploration, extraction and processing of mineral resources are listed in Table I. Table I. Radiation techniques and applications in mining and mineral industries Techniques FIELDS OF APPLICATION LOGGING MINERAL PROCESSING IN-SITU Delineation of deposit In-situ assaying On & off belt

Most full-time radiation workers (e.g., uranium miners, mineral sand dry plant operators, industrial radiographers, nuclear medicine technicians, medical radiographers and radiologists, radiation laboratory workers) get an annual dose from their work of 2 or 3 mSv, up to a maximum of about 5 or 6 mSv. That is a tenth

Application of gamma emission imaging in mineral processing industry case study of slurry transport in a wet laboratory ball mill Augustine B Makokha1,3, Michael H Moys1 andMDTVangu2 1 School of Chemical amp Metallurgical Engineering, University of the Witwatersrand, PO Box X3, 2050, Johannesburg, South Africa

Gamma-gamma probes. These consist of a gamma source and one or several instruments — scintillation detectors — suitable for measurement of gamma radia-tion. The intensity of the gamma radiation scattered back to the detector from the rock depends on the rock's den-sity. Therefore, the technique is most commonly used in coal and oil exploration.

The gamma emission imaging technique has been effectively applied for determination of the slurry radial flow pattern and mixing profile within the ball charge in a wet laboratory ball mill.

Some Image Processing Examples Gamma-Ray Imaging • Gamma-ray imaging is used in many applications like nuclear medicine and astronomy. • Positron emission tomography (PET imaging) is commonly used in medical diagnostic imaging. • Radioactive isotope administered to …

Application of gamma emission imaging in mineral processing industry: case study of slurry transport in a wet laboratory ball mill This article has been downloaded from IOPscience.

The gamma emission imaging technique has been effectively applied for determination of the slurry radial flow pattern and mixing profile within the ball charge in a wet laboratory ball mill. Aqueous technetium, Tc 99m radioisotope that emits 140 keV photons with a short half-life of 6.02 h, was utilized as a flow follower while the glycerol-water mixture was used to mimic the motion of the ...

Gamma-ray-camera images (exposure time ca 0.3 s starting at the moment of injection) of (a) *'"'Kr labelled "oxygen" and (b) 9R"Tc-labelled oil jet. Each image is overlaid with similar regions of interest and corresponding residence-time distributions obtained for these regions are depicted on the right. Fig. 6.

used in mineral investigations to map low-velocity alluvial deposits such as those that may contain gold, tin, or sand and gravel. Applications in geoenvironmental work include studying the structure, thickness, and hydrology of tailings and extent of acid mine drainage around mineral deposits (Dave and others, 1986). THERMAL METHODS

Application of gamma emission imaging in mineral processing industry: case study of slurry transport in a wet laboratory ball mill Application of gamma emission imaging in mineral processing industry: case study of slurry transport in a wet laboratory ball mill more. by augustine makokha.

Gamma rays are the most penetrating radiation from natural and man-made sources, and gamma ray spectrometry is a powerful tool for the monitoring and assessment of the radiation environment. Gamma ray surveys are carried out from aircraft, field vehicles, on foot, in boreholes, on the sea bottom and in laboratories. Ground and airborne gamma ray

Application of gamma emission imaging in mineral processing industry: case study of slurry transport in a wet laboratory ball mill To cite this article: Augustine B Makokha et al 2011 Meas. Sci. Technol. 22 045706 View the article online for updates and enhancements. Related content Feasibility study on Compton imaging for