title: A 212Pb generator based on a 228Th source.
abstract: A two-compartment 212Pb generator has been constructed and characterized physically and chemically. It is based on transport by airflow of gaseous 220Rn emanating from thin layers of [228Th]barium stearate. 220Rn is collected in a glass bubbler by extraction into an organic solvent and solidified at temperatures below -72 degrees C. Tracer studies show that the decay product 212Pb can be recovered with approximately 70% yield. It is suggested that this generator design could accommodate therapeutic levels of 212Pb/228Th.
authors.affiliation: Department of Chemistry, University of Oslo, Norway. s.p.hassfjell@kjemi.uio.no
authors.forename: S
authors.initials: S
authors.lastname: Hassfjell
mesh_terms: D004867:Equipment Design; D006801:Humans; D007856:Lead Radioisotopes / Q000302:isolation & purification* / Q000627:therapeutic use; D009369:Neoplasms / Q000532:radiotherapy; D019275:Radiopharmaceuticals / Q000302:isolation & purification / Q000627:therapeutic use; D011886:Radon / Q000302:isolation & purification; D013910:Thorium
chemical_list: D007856:Lead Radioisotopes; D019275:Radiopharmaceuticals; D013910:Thorium; D011886:Radon