title: Preparation and characterisation of a (226)Ra spiked slag as reference material for radioactive control of steelworks.
abstract: One of the issues of the European Research Project MetroMetal is to develop reference materials in order to provide SI-traceable radioactivity monitoring in foundries. For this purpose, a protocol for preparing a set of identical standard slag samples, containing known activity concentrations of (226)Ra, has been developed. This paper describes the preparation of the raw material, the characterisation in terms of its mineralogical, chemical and radiological features, the spiking procedure and the homogeneity testing of the spiked samples.
authors.affiliation: Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Avenida Complutense, 40, Madrid 28040, Spain. Electronic address: marcos.mejuto@ciemat.es.
authors.forename: M
authors.initials: M
authors.lastname: Mejuto
authors.affiliation: Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Avenida Complutense, 40, Madrid 28040, Spain.
authors.forename: M T
authors.initials: MT
authors.lastname: Crespo
authors.affiliation: Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Avenida Complutense, 40, Madrid 28040, Spain.
authors.forename: E
authors.initials: E
authors.lastname: García-Toraño
authors.affiliation: Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Avenida Complutense, 40, Madrid 28040, Spain.
authors.forename: V
authors.initials: V
authors.lastname: Peyrés
authors.affiliation: Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Avenida Complutense, 40, Madrid 28040, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Roteta
authors.affiliation: Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Avenida Complutense, 40, Madrid 28040, Spain.
authors.forename: L
authors.initials: L
authors.lastname: Pérez Del Villar
keywords: Radioactivity measurements; Reference materials; Scrap; Steel slag; Steelworks