An automatic uranium analyser based on delayed neutron counting |
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Authors: | R J Rosenberg V Pitkänen A Sorsa |
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Institution: | (1) Reactor Laboratory Technical Research Centre of Finland, SF-02150 Espoo 15, Finland;(2) Present address: Nokia Electronics, Box 780, SF-00101 Helsinki 10, Finland |
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Abstract: | An automated device for the analysis of uranium is described. The analyser comprises a sample transfer system, a neutron counter,
a microprocessor and a teletype. A set of 100 samples, 14 ml of maximum volume, is analysed without manual intervention. The
capacity is 45 samples per hour. Using a 10 g sample the detection limit is 0.06 ppm and uranium concentrations of 1 ppm can
be determined with a precision of better than ±5%. The only source of systematic error is thorium the sensitivity of thorium
being 2.3% of that of uranium. Results for USGS standard rocks are reported and the cost of the analysis is discussed. |
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Keywords: | |
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