Shuffler measurements of previously unverified and unconfirmed inventory items
The two new shufflers at Los Alamos National Laboratory (LANL) have been used on uranium inventory items that could not be previously verified or confirmed because of the lack of a suitable assay instrument. A third shufflers at the Westinghouse Savannah River Site (SRS) is currently measuring yet another inventory. One of the LANL inventories had items with only uranium while the second inventory had many mixtures of uranium and plutonium. The only calibration standards available were uniformly shaped cans of uranium oxide with no significant impurities. The inventory items had a wide variety of compositions, impurities, and geometric forms. Three measurement plans have been used with increasing sophistication as our experience and resources have grown. They are semi-quantitative and quantitative analyses of only the active-mode shufflers data, and quantitative analyses of active- and passive-shuffler data combined with isotopics and enrichments deduced from gamma-ray measurements. Measurement results for the first two approaches for the LANL inventories are given in this paper. Results of the third approach in the SRS case will be reported at a later date after they are completed.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 394436
- Report Number(s):
- LA-UR-96-2373; CONF-960767-51; ON: DE96014247; TRN: 96:029063
- Resource Relation:
- Conference: 37. annual meeting of the Institute of Nuclear Materials Management, Naples, FL (United States), 28 Jul - 1 Aug 1996; Other Information: PBD: [1996]
- Country of Publication:
- United States
- Language:
- English
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