用于伽马射线能谱分析能力验证的模拟空气过滤器的研制。
Development of simulated air filters for gamma-ray spectrometry proficiency testing.
作者信息
Ceccatelli A, De Felice P, Fazio A
机构信息
ENEA, Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti (INMRI), Centro Ricerche Casaccia, Rome, Italy.
出版信息
Appl Radiat Isot. 2010 Jul-Aug;68(7-8):1240-6; discussion 1246. doi: 10.1016/j.apradiso.2010.01.010. Epub 2010 Jan 13.
A set of 60 spiked simulated air filter sources was developed for the 2004-2005 proficiency test of the Italian radioactivity surveillance network. Each simulated filter source was prepared by reproducible volumetric dispensing of 19 drops of a mixed radioactive solution containing Co-57, Cs-134, Cs-137, Co-60 and Eu-152. The spiking pattern was investigated and optimized by numerical simulations. The filter sources were checked by double counting on HPGe and NaI(Tl) detectors. The standard deviation (SD) of activity values was 1.5%.
为意大利放射性监测网络2004 - 2005年能力验证测试，开发了一组60个加标模拟空气过滤器源。每个模拟过滤器源通过可重复的体积分配19滴含有Co - 57、Cs - 134、Cs - 137、Co - 60和Eu - 152的混合放射性溶液来制备。通过数值模拟研究并优化了加标模式。使用HPGe和NaI(Tl)探测器通过双计数对过滤器源进行检查。活度值的标准偏差(SD)为1.5%。
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