Advances in 14 MeV neutron activation analysis by means of a new intense neutron source |
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| Authors: | R Pepelnik H -U Fanger W Michaelis B Anders |
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| Institution: | 1. Institut für Physik, GKSS-Forschungszentrum Geesthacht, 2054, Geesthacht, FRG
2. I. Institut für Experimentalphysik, Universit?t Hamburg, 2000, Hamburg, FRG
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| Abstract: | A new intense 14 MeV neutron generator with cylindrical acceleration structure has been put in operation at the GKSS Research
Center Geesthacht. The sealed neutron tube is combined with a fast pneumatic rabbit system with particular capabilities for
neutron activation analysis involving shortlived reaction products. The sample transfer time is less than 140 ms. The maximum
neutron flux available for activation is 5.2·1010 n/cm2s. Theoretical sensitivity predictions made in a previous study have been verified for some important trace elements. As a
first application, samples of freeze-dried suspended matter and fishes of the Elbe river were analyzed. |
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