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arXiv · 2112.06572

Production of Pa-230 as a Source for Medical Radionuclides U-230 and Th-226 Including Isolation by Liquid-liquid Extraction

Aleksandr N. Vasiliev·Stanislav V. Ermolaev·Elena V. Lapshina·Magdiel G. Bravo·Aino K. Skasyrskaya
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Abstract

The experimental cross sections of Pa-230 formation in the reaction 232Th(p,3n)230Pa for the protons energy range of 140-35 MeV are determined and compared with literature data. The yield of U-230 and impurities of U-232 and U-233 depending on the energy of protons entering a thick thorium target are estimated. Liquid-liquid extraction with 1-octanol solution and addition of Al(III) as a masking agent followed by back-extraction with 7M HNO3+0.01M HF solution allows selective Pa isolation from a solution of irradiated Th and proposes simultaneous production of medical Ac-225 and Pa-230/U-230 from the same Th-target.

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Aleksandr N. Vasiliev, Stanislav V. Ermolaev, Elena V. Lapshina, Magdiel G. Bravo, Aino K. Skasyrskaya. 2021-12-13. Production of Pa-230 as a Source for Medical Radionuclides U-230 and Th-226 Including Isolation by Liquid-liquid Extraction. https://doi.org/10.1080/07366299.2022.2088059

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