The traceability chain of 131I measurements for nuclear medicine in Cuba

• Published in: Applied radiation and isotopes 2012-09, Vol.70 (9), p.2251-2254
• Main Authors: Oropesa, P., Moreno, Y., Serra, R.A., Hernández, A.T.
• Format: Article
• Language: English
• Subjects: 131I; Cuba; Iodine Radioisotopes - analysis; Iodine Radioisotopes - standards; Measurement comparison; Measurement standard; Measurement uncertainty; Nuclear medicine; Nuclear Medicine - standards; Radiometry - standards; Radiopharmaceuticals - analysis; Radiopharmaceuticals - standards; Reference Standards; Reference Values; Traceability
• ISSN: 0969-8043; 1872-9800
• DOI: 10.1016/j.apradiso.2012.02.108

The national traceability chain for 131I 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. ► Three levels′ Cuban traceability chain for 131I measurements in nuclear medicine is described. ► At the highest (primary) level, LSC employing the CIEMAT/NIST method is used. ► At the secondary level, a secondary standard radionuclide calibrator is utilized. ► Unit transfer to the tertiary level of end-users assures same conditions as in routine works. ► Equivalence between Cuban standards and standards of other countries are ascertained.