Herranz M, Idoeta R, Rozas S, Legarda F
Dpto. de Ingeniería Nuclear y Mecánica de Fluidos, Escuela de Ingeniería de Bilbao, Universidad del País Vasco UPV/EHU, Alda. Urquijo s/n, 48013 Bilbao, Spain.
Dpto. de Ingeniería Nuclear y Mecánica de Fluidos, Escuela de Ingeniería de Bilbao, Universidad del País Vasco UPV/EHU, Alda. Urquijo s/n, 48013 Bilbao, Spain.
J Environ Radioact. 2017 Oct;177:48-57. doi: 10.1016/j.jenvrad.2017.06.003. Epub 2017 Jun 12.
Rapid methods that are used during nuclear accidents or incident situations must first be implemented and validated in radioactivity measurement laboratories, so they can be ready to provide quick answers to governments, regulatory organizations and people in such situations. As these accident situations are rare and the methods are thus not frequently used, the best way to achieve this is to use the same methods for both routine environmental monitoring and rapid or emergency situations. Before this can be done, however, an analysis of the conditions under which a rapid method could be effectively used in routine situations should be carried out. This work analyses the performance of the rapid method for the simultaneous determination of Sr and Sr in milk, published by the IAEA, and compares it with another, more conventional method used for routine environmental purposes. Through numerical calculations and considering different Sr and Sr activities, we also conducted a study to obtain the optimum values for determination parameters - such as sample mass, counting times, time lapse between measurements and background counting times - that will allow the use of the IAEA rapid method as a routine environmental one.
在核事故或事件发生期间使用的快速方法必须首先在放射性测量实验室中实施和验证，以便在这种情况下能够随时为政府、监管组织和公众提供快速答复。由于这些事故情况很少发生，因此这些方法不常使用，实现这一目标的最佳方法是在常规环境监测以及快速或紧急情况下都使用相同的方法。然而，在这样做之前，应该对快速方法能够在常规情况下有效使用的条件进行分析。这项工作分析了国际原子能机构公布的同时测定牛奶中锶和锶的快速方法的性能，并将其与另一种用于常规环境目的的更传统方法进行了比较。通过数值计算并考虑不同的锶和锶活度，我们还进行了一项研究，以获得测定参数的最佳值，如样品质量、计数时间、测量之间的时间间隔和本底计数时间，从而能够将国际原子能机构的快速方法用作常规环境方法。
