Yields of Photo-Proton Reactions on Nuclei of Nickel and Separation of Cobalt Isotopes from Irradiated Targets

Andrey G Kazakov; Julia S Babenya; Taisya Y Ekatova; Sergey S Belyshev; Vadim V Khankin; Alexander A Kuznetsov; Sergey E Vinokurov; Boris F Myasoedov

doi:10.3390/molecules27051524

Yields of Photo-Proton Reactions on Nuclei of Nickel and Separation of Cobalt Isotopes from Irradiated Targets

Molecules. 2022 Feb 24;27(5):1524. doi: 10.3390/molecules27051524.

Authors

Andrey G Kazakov¹, Julia S Babenya¹, Taisya Y Ekatova¹, Sergey S Belyshev^{2

3}, Vadim V Khankin³, Alexander A Kuznetsov^{2

3}, Sergey E Vinokurov¹, Boris F Myasoedov¹

Affiliations

¹ Radiochemistry Laboratory, Vernadsky Institute of Geochemistry and Analytical Chemistry, The Russian Academy of Sciences, Kosygin St., 19, 119991 Moscow, Russia.
² Department of Physics, Lomonosov Moscow State University, Leninskie Gory, 1, Bld. 2, 119991 Moscow, Russia.
³ Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Leninskie Gory, 1, Bld. 2, 119991 Moscow, Russia.

Abstract

Nowadays, cobalt isotopes ⁵⁵Co, ⁵⁷Co, and ^58mCo are considered to be promising radionuclides in nuclear medicine, with ⁵⁵Co receiving the most attention as an isotope for diagnostics by positron emission tomography. One of the current research directions is dedicated to its production using electron accelerators (via photonuclear method). In our work, the yields of nuclear reactions occurring during the irradiation of ^natNi and ⁶⁰Ni by bremsstrahlung photons with energy up to 55 MeV were determined. A method of fast and simple cobalt isotopes separation from irradiated targets using extraction chromatography was developed.

Keywords: cobalt isotopes; cobalt-55; extraction chromatography; nuclear medicine; photonuclear method.

Grants and funding

21-13-00449/Russian Science Foundation