ALEXANDRIA, Va., June 25 -- United States Patent no. 12,340,914, issued on June 24, was assigned to SCK.CEN (Brussels).
"Methods and systems for the production of isotopes" was invented by Dominic Maertens (Westerlo, Belgium) and Thomas Cardinaels (Mol, Belgium).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing Pb-212 and Ac-225 isotopes includes irradiating a Ra-226 containing target with charged particles and producing an irradiated target having at least Ac-225 isotope particles. Following irradiation and a cooling period, actinium isotopes are separated from a residual radium-containing fraction using chromatography. Subsequently, after an additional waiting period, lead isotopes are s...