title: Standardisation of a 229Th solution.
abstract: The use of (229)Th as tracer has become generalised for determination of naturally occurring alpha-emitting thorium isotopes. This paper describes two procedures that allow standardising (229)Th solutions of the order of Bq/g without the need of radiochemical separation of its daughters.
authors.affiliation: CIEMAT, Laboratorio de Metrología de Radiaciones Ionizantes, Avda. Complutense 22, 28040 Madrid, Spain. teresa.crespo@ciemat.es
authors.forename: M T
authors.initials: MT
authors.lastname: Crespo
mesh_terms: D011829:Radiation Dosage; D011874:Radiometry / Q000379:methods* / Q000592:standards*; D012016:Reference Values; D012680:Sensitivity and Specificity; D012996:Solutions; D013030:Spain; D013910:Thorium / Q000032:analysis* / Q000737:chemistry / Q000592:standards*
chemical_list: D012996:Solutions; D013910:Thorium