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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.
Shekhar Kumar
Nuclear Technology | Volume 210 | Number 11 | November 2024 | Pages 2038-2049
Research Article | doi.org/10.1080/00295450.2024.2309070
Articles are hosted by Taylor and Francis Online.
The density of aqueous solutions containing actinide nitrates is an important parameter for process design, equipment design, and remote operation/control. It is also significantly important for the estimation of atom densities during criticality calculations and related experiments involving actinide solutions. Using a massive database of 1353 points consisting of in-house-generated data as well as data published in the literature, a robust estimation of the coefficients of a re-parameterized and dimensionally consistent form of density equation was performed in the following range of parameters: U(VI) concentration 0 to 1330 g/L, Pu(IV) concentration 0 to 1201 g/L, HNO3 concentration 0 to 15.8 M, and temperature range of 283.15 to 373.15 K. This paper lists the details of the new database, the newly estimated coefficients, and the performance evaluation of the proposed re-parameterized dimensionally consistent equations.