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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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Researchers use one-of-a-kind expertise and capabilities to test fuels of tomorrow
At the Idaho National Laboratory Hot Fuel Examination Facility, containment box operator Jake Maupin moves a manipulator arm into position around a pencil-thin nuclear fuel rod. He is preparing for a procedure that he and his colleagues have practiced repeatedly in anticipation of this moment in the hot cell.
Richard B. Strittmatter
Nuclear Technology | Volume 59 | Number 2 | November 1982 | Pages 355-362
Technical Paper | Radioisotopes and Isotope | doi.org/10.13182/NT82-A33038
Articles are hosted by Taylor and Francis Online.
A NaI(Tl)-based in-line enrichment monitor has been developed for the gas-phase UF6 feed stream of an enrichment plant to provide real-time material-accountancy and/or containment-surveillance data. The method has produced assay results that are independent of operating UF6 pressure, with an assay accuracy of better than 1% (1σ) relative over the range of UF6 enrichments of 0.72 to 5.4 at.%. For 1.0%-enriched UF6 at 700 Torr, a 0.74% relative precision was obtained for a 1000-s counting time. As a result of these measurements, an in-line gas-phase enrichment monitor has been installed in the Paducah-product feed line of the Oak Ridge Gaseous Diffusion Plant for field test and evaluation.