title: The traceability chain of 131I measurements for nuclear medicine in Cuba.
abstract: The national traceability chain for (131)I activity measurements performed in nuclear medicine in Cuba is described. At the highest (primary) level, liquid scintillation counting employing the CIEMAT/NIST method is used; at the secondary level, a secondary standard radionuclide calibrator is utilized that allows for a quick and simple transference of the measurement unit to the tertiary level of end-users' instruments. The equivalence of Cuban standards and the assessment of measurement uncertainties at the end-user level are determined through the results of measurement comparisons.
authors.affiliation: Centro de Isótopos (CENTIS). Avenue Monumental y Carretera La Rada Km 3 1/2. Guanabacoa, La Habana 11100, Cuba. poropesa@centis.edu.cu
authors.forename: P
authors.initials: P
authors.lastname: Oropesa
authors.forename: Y
authors.initials: Y
authors.lastname: Moreno
authors.forename: R A
authors.initials: RA
authors.lastname: Serra
authors.forename: A T
authors.initials: AT
authors.lastname: Hernández
mesh_terms: D003462:Cuba; D007457:Iodine Radioisotopes / Q000032:analysis* / Q000592:standards*; D009683:Nuclear Medicine / Q000592:standards*; D011874:Radiometry / Q000592:standards*; D019275:Radiopharmaceuticals / Q000032:analysis* / Q000592:standards*; D012015:Reference Standards; D012016:Reference Values
chemical_list: D007457:Iodine Radioisotopes; D019275:Radiopharmaceuticals