Oropesa Verdecia P, Kossert K
Centro de Isótopos, P.O. Box 3415, San José de las Lajas, Habana, Cuba.
Appl Radiat Isot. 2009 Jun;67(6):1099-103. doi: 10.1016/j.apradiso.2009.01.018. Epub 2009 Jan 21.
The activity of an (131)I solution was measured at the Cuban Institute, CENTIS-DMR, as well as at the German National Metrology Institute, PTB, within the scope of a bilateral comparison. In particular, the comparison is aimed at an investigation of the measurement capabilities of CENTIS-DMR which provides activity standards in Cuba and organizes national comparisons, placing a particular emphasis on radionuclides for nuclear medicine, such as (131)I. Both institutes applied liquid scintillation counting techniques with efficiency tracing as well as secondary standardization procedures by means of calibrated ionization chambers and gamma-ray spectrometers. The results were checked for consistency and a good agreement was found. Moreover, a virtual link of the Cuban result to the International Reference System (SIR) at the Bureau International des Poids et Mesures (BIPM) is discussed.
在双边比对的范围内，古巴的CENTIS-DMR研究所和德国国家计量研究所PTB对（131）I溶液的活度进行了测量。特别是，此次比对旨在调查CENTIS-DMR的测量能力，该研究所在古巴提供活度标准并组织全国性比对，尤其侧重于核医学用放射性核素，如（131）I。两个研究所都采用了带效率追踪的液体闪烁计数技术以及通过校准电离室和伽马射线光谱仪进行的二级标准化程序。对结果进行了一致性检查，发现吻合度良好。此外，还讨论了将古巴的结果与国际计量局（BIPM）的国际参考系统（SIR）进行虚拟链接的问题。
