title: Determination of 90Sr-90Y activity in urine samples by using Cherenkov counting.
abstract: Cherenkov counting of the (90)Sr-(90)Y pure beta emitters in aqueous samples is an attractive method; but color quenching correction is needed, this being especially significant for urine which is characterized by a strong coloration. A quench correction method based on the external source of some liquid scintillation systems (named ESAR-External Source Area Ratio) was proposed for aqueous solutions. In the present work, the application of the ESAR method for determination of (90)Sr-(90)Y in human urine samples is described.
authors.affiliation: Nuclear Research Center Negev, Beer Sheva, Israel.
authors.forename: S
authors.initials: S
authors.lastname: Tsroya
authors.forename: U
authors.initials: U
authors.lastname: German
authors.forename: O
authors.initials: O
authors.lastname: Pelled
authors.forename: E
authors.initials: E
authors.lastname: Katorza
authors.forename: Z B
authors.initials: ZB
authors.lastname: Alfassi
mesh_terms: D006801:Humans; D011834:Radiation Monitoring / Q000379:methods*; D012588:Scintillation Counting / Q000379:methods; D013326:Strontium Radioisotopes / Q000652:urine*; D015019:Yttrium / Q000652:urine*
chemical_list: D013326:Strontium Radioisotopes; D015019:Yttrium