Journal
APPLIED RADIATION AND ISOTOPES
Volume 82, Issue -, Pages 158-165Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.apradiso.2013.07.025
Keywords
Gd-153; Gadolinium; Europium; Rare earth separations; Medical isotopes
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Funding
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics, Isotope Development and Production for Research Applications Program [DE-AC05-76RL01830]
- Pacific Northwest National Laboratory
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Gadolinium-153 is a low-energy gamma-emitter used in nuclear medicine imaging quality assurance. Produced in nuclear reactors using natural Eu2O3 targets, Gd-153 is radiochemically separated from europium isotopes by europium reduction. However, conventional aqueous europium reduction produces hydrogen gas, a flammability hazard in radiological hot cells. We altered the traditional reduction method, using methanol as the process solvent to nearly eliminate hydrogen gas production. This new, non-aqueous reduction process demonstrates greater than 98% europium removal and gadolinium yields of 90%. (C) 2013 Elsevier Ltd. All rights reserved.
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