Koskinas Marina F, Yamazaki Ione M, Bessa Ana C M, Caldas Linda V E, Dias Mauro S
Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP), Centro do Reator de Pesquisas-CRPq, Pinheiros, São Paulo-SP, Brazil.
Appl Radiat Isot. 2010 Apr-May;68(4-5):589-91. doi: 10.1016/j.apradiso.2009.09.010. Epub 2009 Sep 15.
Specific activity results of (51)Cr, (67)Ga, (99m)Tc and (201)Tl radioactive solutions, measured in different dose calibrators located at nuclear medicine services and in a calibrated HPGe gamma spectrometer, were compared. The HPGe spectrometer was calibrated in a well defined geometry by means of (60)Co, (133)Ba, (152)Eu, (166m)Ho and (241)Am sources, previously standardized in a 4pibeta-gamma coincidence system. Despite the observed differences, the results may be accepted within the 10% uncertainty range, established by Brazilian regulatory standards.
比较了在核医学科室不同剂量校准仪以及校准过的高纯锗γ能谱仪中测量的（51）铬、（67）镓、（99m）锝和（201）铊放射性溶液的比活度结果。高纯锗能谱仪通过（60）钴、（133）钡、（152）铕、（166m）钬和（241）镅源在明确的几何条件下进行校准，这些源先前在4πβ-γ符合系统中进行了标准化。尽管存在观测到的差异，但根据巴西监管标准确定的10%不确定度范围内，结果是可以接受的。
