Mauring Alexander, Vidmar Tim, Gäfvert Torbjörn, Drefvelin Jon, Fazio Aldo
International Atomic Energy Agency, Environment Laboratories, 2444 Seibersdorf, Austria.
Belgian Nuclear Research Centre (SCK-CEN), Boeretang 200, 2400 Mol, Belgium.
J Environ Radioact. 2018 Aug;188:58-66. doi: 10.1016/j.jenvrad.2017.10.011. Epub 2017 Oct 23.
In situ gamma spectrometry is a widely applied analysis technique for the determination of radioactivity levels in soil. Compared to traditional laboratory analysis of soil samples, in situ techniques offer a quick and low-cost way of obtaining accurate results from on-site measurements. However, although the technique is well-known, the dependence of in situ gamma spectrometry on complex and time-consuming calibration procedures as well as in-depth knowledge of the geometric distribution of the source in the ground deters many potential users from employing it in their routine work. Aiming to alleviate this issue, a software tool named InSiCal (In Situ gamma spectrometry Calculator) has been developed to make in situ gamma spectrometry more accessible to both experts and non-experts in the field. This is done by simplifying and streamlining both calibration and activity calculation through a simple and intuitive graphical user interface. Testing in real field conditions show that InSiCal is capable of yielding results which are in very good agreement with soil sample analyses, and that the results may be obtained using different detector types (HPGe, NaI, LaBr and CZT). Overall, InSiCal, provides results which are comparable in accuracy to laboratory measurements, indicating that it fulfills its purpose successfully.
原位伽马能谱法是一种广泛应用于测定土壤放射性水平的分析技术。与传统的土壤样品实验室分析相比，原位技术提供了一种从现场测量中快速且低成本地获得准确结果的方法。然而，尽管该技术广为人知，但原位伽马能谱法对复杂且耗时的校准程序以及对地下源几何分布的深入了解，使得许多潜在用户在日常工作中不愿采用它。为了解决这个问题，已开发出一种名为InSiCal（原位伽马能谱计算器）的软件工具，以使该领域的专家和非专家都能更方便地使用原位伽马能谱法。这是通过一个简单直观的图形用户界面简化和精简校准及活度计算来实现的。在实际现场条件下的测试表明，InSiCal能够得出与土壤样品分析结果非常吻合的结果，并且使用不同类型的探测器（高纯锗、碘化钠、溴化镧和碲锌镉）都可以获得这些结果。总体而言，InSiCal提供的结果在准确性上与实验室测量相当，表明它成功实现了其目的。
