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Appl Radiat Isot. 2001 Feb;54(2):335-43.

The application of prompt-gamma neutron activation analysis to borehole logging for coal.

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1
CSIRO Exploration and Mining, Kenmore, Qld, Australia. m.borsaru@dem.csiro.au

Abstract

The PGNAA technique was tested for the in-situ determination of ash, Fe, Si, Al and density of coal seams in water-filled boreholes. The technique is also able to determine in situ the deformation temperature of coals for which a correlation exists between the deformation temperature and the percentage of Al, Si and Fe present in coal. The logging tool employed a 2.5 microg 252Cf neutron source.

PMID:
11200897
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