Production of Co-58m in a siphon-style liquid target on a medical cyclotron.

We present the production of 58mCo on a small, 13 MeV medical cyclotron utilizing a siphon style liquid target system. Different concentrated iron(III)-nitrate solutions of natural isotopic distribution were irradiated at varying initial pressures and subsequently separated by solid phase extraction chromatography. The radio cobalt (58m/gCo and 56Co) was successfully produced with saturation activities of (0.35 ± 0.03) MBq μA−1 for 58mCo with a separation recovery of (75 ± 2) % of cobalt after one separation step utilizing LN-resin. • First production of 58mCo in a liquid target on a medical cyclotron. • Saturation activity 0.35 ± 0.03 MBq/μA. • Separation recovery of Co of 75 ± 2%. [ABSTRACT FROM AUTHOR]