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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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Fabrication milestone for INL’s MARVEL microreactor
A team from Idaho National Laboratory and the Department of Energy’s Office of Nuclear Energy (DOE-NE) recently visited Carolina Fabricators Inc. (CFI), in West Columbia, S.C., to launch the fabrication process for the primary coolant system of the MARVEL microreactor. Battelle Energy Alliance (BEA), which manages INL, awarded the CFI contract in January.
Giovanni Bidoglio, Alfonso De Plano
Nuclear Technology | Volume 74 | Number 3 | September 1986 | Pages 307-316
Technical Paper | Radioactive Waste Management | doi.org/10.13182/NT86-A33833
Articles are hosted by Taylor and Francis Online.
Investigation of reactions between neptunium and soil samples representative of the saline area around the Gorleben salt dome (Federal Republic of Germany) was conducted to obtain an understanding of the transport mechanism of neptunium in saturated brine aquifers. Leaching of 237Np-doped glasses with brine under oxic conditions resulted in the release of soluble species of Np(V). Adsorption parameters obtained from the application of nonlinear sorption isotherms to static experiments were used to interpret the migration of neptunium through soil columns. The existence of two different adsorption sites reacting with neptunium at different rates was postulated. Retardation factors under oxic and anoxic conditions were measured. In anoxic environments such as those found in undisturbed repository horizons, more neptunium activity was fixed by the soil.
