Method of actinum-225 production
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United States of America Patent
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Issued Date -
Feb 22, 2024
app pub date -
Aug 16, 2022
filing date -
Aug 16, 2022
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Abstract
An objective of this invention is to ensure, under the thorium irradiation with protons, the actinium-225 radiochemical purity in relation to actinium-227 in such a way that the activity of the latter does not exceed several hundredths of percent in relation to the target radionuclide's activity. The problem is solved by the irradiation of thorium metal plates with a thickness of 0.5 to 1.5 mm under a current of at least 300 μA with protons in the narrow energy range of 40 to 80 MeV.
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