Abstract
An automated 212Pb radionuclide generator with 228Th as a parent isotope has been designed. The generator operation principle is based on transport by an airflow of gaseous 220Rn radionuclide emanating from DOWEX ion exchange resin containing 228Th into a helix-shaped collector vessel where post-decay 212Pb is collected and deposited on the collector walls. After a 72-hour operation cycle of the generator, sampling of 212Pb in the form of solution in 0.1M HCl is executed with approximately 30% yield of 212Pb. The generator is remotely controlled by a PC-based automatic system. The generator is reloaded once in a few years. The generator is intended for medicobiological and radiochemical investigations in the field of developing antineoplastic drugs of targeted delivery.
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