Naslov
Development of Hybrid Gamma-ray Spectrometry Methods for Enhancing the Capacity of Environmental Radiological Monitoring Around Nuclear Power Plants

Autori
Pavelić, Luka ; Prlić, Ivica ; Petrinec, Branko ; Pavelić, Dora

Izvornik
Proceedings of the 13th International Conference of the Croatian Nuclear Society (9789-5348) (2022), 142; 1-5

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Gamma Spectroscopy, Dosimetry, Environmental Monitoring, Radiation Detectors

Sažetak
In situ gamma spectrometry allows complete characterization of gamma radiation fields at a given location through accurate and sensitive determination of the concentration of radionuclide activity in the soil. When compared with methods that include sample collection and subsequent laboratory analysis, the in situ method enables better soil representativeness, direct and accurate determination of areas of interest (hotspots), higher speed of measurements and reduced monitoring costs. All this makes it a very important complementary or alternative method to laboratory measurements, and unavoidable in case of accidents. The primary goal of this work is to present concepts behind a development and implementation of hybrid gamma spectrometry method for radiological monitoring of the environment of nuclear power plants. The hybrid method would integrate an innovative approach in determining areas of interest with the newly developed method for in situ gamma spectrometric measurements. This would increase the speed of radiological survey, which is critical for rapid decision-making, and in turn would enable the implementation of surveillance of a larger area. For the purpose of determining areas of interest, a hardware-software system for rapid radiological mapping will be developed, applicable in the future for installation in unmanned aerial vehicles, based on dosimetry detectors for measuring ambient dose equivalent, GPS receiver and compact central computer. The maximum area mapping speed will be correlated with the detector sensitivity and its response time. Field measurements will be carried out at least two research sites where in situ and laboratory gamma spectrometric measurements will be performed. Radiological measurements will be accompanied by the measurement of meteorological parameters that will enable the development of a correction pilot algorithm for specific meteorological and other physical environmental conditions of nuclear power plants.

Izvorni jezik
Engleski

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