Determination of 90Sr-90Y activity in urine samples by using Cherenkov counting

S Tsroya; U German; O Pelled; E Katorza; Z B Alfassi

doi:10.1016/j.apradiso.2012.11.011

Determination of 90Sr-90Y activity in urine samples by using Cherenkov counting

Appl Radiat Isot. 2013 Mar:73:12-6. doi: 10.1016/j.apradiso.2012.11.011. Epub 2012 Nov 22.

Authors

S Tsroya¹, U German, O Pelled, E Katorza, Z B Alfassi

Affiliation

¹ Nuclear Research Center Negev, Beer Sheva, Israel.

PMID: 23262124
DOI: 10.1016/j.apradiso.2012.11.011

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.

MeSH terms

Humans
Radiation Monitoring / methods*
Scintillation Counting / methods
Strontium Radioisotopes / urine*
Yttrium / urine*

Substances

Strontium Radioisotopes
Yttrium