Agricultural lands with farm animals (e.g. cattle) can be significantly affected by radioactive contamination following nuclear or radiation accidents. In order to optimise the techniques for measuring 137Cs in contaminated cattle, selected radiation detectors have been tested and calibrated using volumetric radiation sources. In addition, a mathematical phantom of a cow was created within Monte Carlo simulations. The main aim of the research was to propose a method for making rapid measurements of 137Cs in cattle in vivo/in situ and to select the most suitable measurement set-up. Measurements of contaminated cattle in vivo were carried out in Belarus with one selected detector, and were then compared with measurements of meat in a laboratory and with measurements of a control group of cows. The proposed measurement method was also tested on measurements of 137Cs in wild boars in Czechia with higher levels of the 137Cs activity.

中文翻译：

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牛体内 137Cs 测量的不同检测技术的比较。

核或辐射事故后，有农场动物（例如牛）的农田可能会受到放射性污染的严重影响。为了优化测量受污染牛体内 137C 的技术，已使用体积辐射源对选定的辐射探测器进行了测试和校准。此外，在蒙特卡罗模拟中创建了牛的数学模型。该研究的主要目的是提出一种在牛体内/原位快速测量 137C 的方法，并选择最合适的测量装置。在白俄罗斯使用一台选定的检测器对受污染的牛进行体内测量，然后与实验室中的肉类测量值以及对照组奶牛的测量值进行比较。所提出的测量方法还在捷克137Cs 活性水平较高的野猪中进行了137Cs 测量测试。