Application of PGNAA for bulk coal samples in a 4pi geometry.
A 4pi geometry bulk coal analyser using the Prompt gamma neutron activation analysis (PGNAA) technique was tested in the laboratory. The volume of the bulk samples was 270 litres. A 1.5 microg 252Cf neutron source and a 75 mm x 35 mm dia BGO detector were used for the measurements. The ash, Fe, Si and Al content of coal were determined with good accuracy.
Borsaru
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M
CSIRO Exploration and Mining, Kenmore, Qld, Australia.
Jecny
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