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U.S. Department of Energy
Office of Scientific and Technical Information

Development of isotope dilution gamma-ray spectrometry for plutonium analysis

Conference ·
OSTI ID:6215800
;  [1]; ; ; ;  [2]
  1. Los Alamos National Lab., NM (United States)
  2. Power Reactor and Nuclear Fuel Development Corp., Tokai, Ibaraki (Japan)
We are studying the feasibility of determining the plutonium concentration and isotopic distribution of highly radioactive, spent-fuel dissolver solutions by employing high-resolution gamma-ray spectrometry. The study involves gamma-ray plutonium isotopic analysis for both dissolver and spiked dissolver solution samples, after plutonium is eluted through an ion-exchange column and absorbed in a small resin bead bag. The spike is well characterized, dry plutonium containing {approximately}98% of {sup 239}Pu. By using measured isotopic information, the concentration of elemental plutonium in the dissolver solution can be determined. Both the plutonium concentration and the isotopic composition of the dissolver solution obtained from this study agree well with values obtained by traditional isotope dilution mass spectrometry (IDMS). Because it is rapid, easy to operate and maintain, and costs less, this new technique could be an alternative method to IDMS for input accountability and verification measurements in reprocessing plants. 7 refs., 4 figs., 4 tabs.
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:
6215800
Report Number(s):
LA-UR-91-1567; CONF-910534--7; ON: DE92002517
Country of Publication:
United States
Language:
English