The new IAEA reference material: IAEA-434 technologically enhanced naturally occurring radioactive materials (TENORM) in phosphogypsum.
Appl Radiat Isot
; 69(1): 231-6, 2011 Jan.
Article
de En
| MEDLINE
| ID: mdl-20869259
ABSTRACT
A reliable determination of Technologically Enhanced Naturally Occurring Radioactive Materials in phosphogypsum is necessary to comply with radiation protection and environmental regulations. In this respect, a new phosphogypsum reference material was produced and certified to assist in the validation of analytical methods and the quality assurance of produced analytical results. This paper presents the sample preparation methodology, material homogeneity assessment, characterization campaign results and assignment of property values, and associated uncertainties. The reference values and associated uncertainties for Pb-210, Ra-226, Th-230, U-234 and U-238 were established based on consensus values calculated from analytical results reported by three National Metrology Institutes and five expert laboratories.
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Langue:
En
Journal:
Appl Radiat Isot
Sujet du journal:
MEDICINA NUCLEAR
/
SAUDE AMBIENTAL
Année:
2011
Type de document:
Article
Pays d'affiliation:
Autriche