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Billet shuffler calibration data and interpolation schemes

Technical Report ·
OSTI ID:7281226
 [1]; ;  [2]
  1. Los Alamos National Lab., NM (United States)
  2. Westinghouse Savannah River Co., Aiken, SC (United States)
+ Show Author Affiliations
The Westinghouse Savannah River Company's billet shuffler assays uranium-aluminum billets for their {sup 235}U contents. The instrument induces and counts delayed neutrons and then converts the measured count rates into {sup 235}U masses. As delivered by Los Alamos National Laboratory, the data analysis software converts the count rate from a billet into a mass by interpolating among calibration curves for various uranium enrichments, using the known enrichment of the billet. This procedure is necessary because of a small contribution from {sup 238}U to the measured count rates. An extensive set of calibration data has now been generated and used to explore data analysis techniques based on one calibration curve with terms that depend on the enrichment. The accuracy of such schemes is shown in this report to be worse than the 0.5% from the existing interpolation scheme, and thus will not be implemented.
Research Organization:
Los Alamos National Lab., NM (United States)
Sponsoring Organization:
DOE; USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
7281226
Report Number(s):
LA-12351-MS; ON: DE92017124
Country of Publication:
United States
Language:
English

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