Isolation of Medicine-Applicable Actinium-225 from Thorium Targets Irradiated by Medium-Energy Protons

S. V. Ermolaev, A. N. Vasiliev, Elena V. Lapshina, B. L. Zhuikov, N. V. Zakharov, V. V. Pozdeev, V. M. Kokhanyuk, B. F. Myasoedov, Stepan N. Kalmykov

Solvent Extraction and Ion Exchange · 2014 · 60 citations · 18 references

Concepts

Abstract

A method of isolation of actinium-225 for nuclear medical applications from thorium targets irradiated by protons is presented. It comprises liquid extraction and extraction chromatography separations. The method demonstrates high (> 85%) chemical yield and radionuclide purity of the final product. An impurity of 227Ac (0.1% at the end of bombardment) does not hinder 225Ac from being used for medical 225Ac/213Bi generators.

References

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