کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1879115 | 1042538 | 2012 | 4 صفحه PDF | دانلود رایگان |
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.
Journal: Applied Radiation and Isotopes - Volume 70, Issue 9, September 2012, Pages 2251–2254