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U.S. Department of Energy
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Application of the active well coincidence counter (AWCC) to high-enrichment uranium metal

Technical Report ·
OSTI ID:6240601
The Active Well Coincidence Counter has been evaluated for the assay of high-enrichment uranium metal samples. Samples of interest to the International Atomic Energy Agency (IAEA), including stacked disks to simulate buttons and thin metal plates, were measured. Both thermal-neutron and fast-neutron interrogation modes were evaluated to extend the measurement range from a few grams to several kilograms of /sup 235/U. Neutron self-shielding and multiplication effects were studied, and measurement and calibration procedures have been developed for the AWCC. The results demonstrated that the instrument can be used for the assay of a wide range of high-enrichment uranium samples.
Research Organization:
Los Alamos National Lab., NM (USA)
OSTI ID:
6240601
Report Number(s):
LA-8621-MS; ON: DE81030503
Country of Publication:
United States
Language:
English