Effect of 226Ra purity as a target for 225Ac production using a fast reactor

AbstractResearchers are seeking alternative225Ac production methods because of the scarcity of225Ac for targeted alpha therapy. Although226Ra from waste sources has been considered, obtaining226Ra is challenging. Therefore, the authors focused on the contamination of minerals with232Th-derived228Ra while investigating methods to recover226Ra from uranium ores. The effect of228Ra contamination on225Ac production by226Ra transmutation using fast reactors was evaluated. Consequently, toxic228Ac contaminates225Ac. However, using the different half-lives of225Ac and228Ac, pure225Ac can be obtained from the chemical separation of actinium after cooling for 5 –8 days.
Source: Journal of Radioanalytical and Nuclear Chemistry - Category: Nuclear Medicine Source Type: research