Increased sensitivity of laser monitoring of molecular iodine in the atmosphere around the location of an npp using an unmanned aerial vehicle

A mobile laser system is proposed for monitoring the atmosphere around the location of a NPP determining the concentration of molecular iodine at the level of 10⁸ cm⁻³ and assessing the volumetric activity at the level of 1 MBq/m³. Due to the high mobility of the system, which is ensured by the use of an unmanned aerial vehicle, it can be used in the event of an emergency at a nuclear power plant or similar enterprise to assess the radioactive contamination of various parts of the adjacent territory including the upper hemisphere to a radius of 5–10 km, which limitation is due to the flight range of an unmanned aerial vehicle.