Application of a territorial remote radiation monitoring system at the Chornobyl nuclear accident site

This is the authors' abstract. We don't add key points for this paper.

Dynamic and static characteristics of nonstationary radiation fields are studied. The system on-board of an unmanned aerial vehicle is used for mapping of certain heavily contaminated areas of the Chornobyl nuclear reactor zone. Sources of ionizing radiation under uncertain and unfavorable conditions, with limited time of observation and measurement, have been measured in real time in one single process with a spatial resolution of around 0.5 m and a surface contamination sensitivity of 0.5 kBq · m − 2. Small radioactive spots in an undulating forested area abundantly contaminated with high intensity radioactive isotopes have been plotted on a map.